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INTERNAL DRAFT Five-Year Review Report

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INTERNAL DRAFT Five-Year Review Report Powered By Docstoc
					                        Second Five-Year Review Report
                                           for
               Fresno Municipal Sanitary Landfill Superfund Site
                               Fresno County, California




                          United States Army Corps of Engineers
                                       Seattle District
                                   Seattle, Washington



                      United Stated Environmental Protection Agency
                                          Region 9
                                  San Francisco, California




Approved by:


 }~Q
Kathleen Salyer        ~
Assistant Director, Superfund Division
California Site Cleanup Branch
U.S. Environmental Protection Agency, Region 9
[This page intentionally left blank]
Table of Contents
Acronyms and Abbreviations ........................................................................................................ iii	
  
Executive Summary ....................................................................................................................... iv	
  
Five-Year Review Summary Form................................................................................................ vi	
  
I. Introduction ................................................................................................................................. 1	
  
II. Site Chronology.......................................................................................................................... 2	
  
III. Background ............................................................................................................................... 4	
  
    Physical Characteristics .............................................................................................................. 4	
  
    Land and Resource Use .............................................................................................................. 4	
  
       Geology ................................................................................................................................... 5	
  
       Hydrogeology.......................................................................................................................... 5	
  
    History of Contamination ........................................................................................................... 6	
  
    Basis for Taking Action .............................................................................................................. 8	
  
IV. Remedial Actions.................................................................................................................... 10	
  
    Remedy Selection ..................................................................................................................... 10	
  
    Remedy Implementation........................................................................................................... 12	
  
    System Operations and Maintenance........................................................................................ 13	
  
V. Progress Since the Last Five-Year Review.............................................................................. 16	
  
VI. Five-Year Review Process...................................................................................................... 20	
  
    Administrative Components ..................................................................................................... 20	
  
    Community Involvement .......................................................................................................... 20	
  
    Document Review..................................................................................................................... 20	
  
    Institutional Controls ................................................................................................................ 24	
  
    Site Inspection........................................................................................................................... 25	
  
    Interviews.................................................................................................................................. 25	
  
VII. Technical Assessment ........................................................................................................... 26	
  
    Question A: Is the remedy functioning as intended by the decision documents? .................... 26	
  
    Question B: Are the exposure assumptions, toxicity data, cleanup levels, and remedial action
    objectives (RAOs) used at the time of the remedy still valid? ................................................. 28	
  
    Question C: Has any other information come to light that could call into question the
    protectiveness of the remedy?................................................................................................... 30	
  
    Technical Assessment Summary .............................................................................................. 30	
  
VIII. Issues.................................................................................................................................... 31	
  
IX. Recommendations and Follow-up Actions............................................................................. 31	
  
X. Protectiveness Statement.......................................................................................................... 31	
  
XI. Next Review ........................................................................................................................... 31	
  




                                                                           i
Table of Contents, Continued

Tables (located within body of text)
Table 1. Chronology of Site Events................................................................................................ 2	
  
Table 2. MCLs for Contaminants of Concern .............................................................................. 11	
  
Table 3. Annualized OU-2 Operation and Maintenance Costs..................................................... 15	
  
Table 4. Progress Since Last Five-Year Review .......................................................................... 16	
  
Table 5. Summary of VOC Concentration Trend Data Through April 2010 ............................... 23	
  
Table 6. MCL Comparison ........................................................................................................... 29	
  
Table 7. Issues of the 2010 Five-Year Review ............................................................................. 31	
  
Table 8. Recommended Follow-Up Actions ................................................................................ 31	
  
	
  

Figures (located after end of text)
Figure 1 – Site Location Map
Figure 2 – Site Plan
Figure 3 - Groundwater Treatment Components
Figure 4 – Groundwater Well Locations
Figure 5 – Landfill Gas Well Locations
Figure 6 – Tetrachloroethene in A-Aquifer Groundwater
Figure 7 – Tetrachloroethene in B-Aquifer Groundwater
Figure 8 – Tetrachloroethene in C-Aquifer Groundwater
Figure 9 – Total VOCs in A-Aquifer Groundwater
Figure 10 – Total VOCs in B-Aquifer Groundwater
Figure 11 – Total VOCs in C-Aquifer Groundwater

Attachments (located after end of text)
Attachment 1 – List of Documents Reviewed
Attachment 2 – ARARs Review Summary
Attachment 3 – Site Visit/Trip Report, with Photographs
Attachment 4 – Site Inspection Checklist
Attachment 5 – Interview Records
Attachment 6 – VOC Groundwater Concentration Plots
Attachment 7 – Data Summary Tables
Attachment 8 – Public Notices
Attachment 9 – Risk Analysis
Attachment 10 – Design Criteria




                                                                   ii
Acronyms and Abbreviations
AOR        Analysis of Risk
ARARs      Applicable or Relevant and Appropriate Requirements
bgs        below ground surface
CCR        California Code of Regulations
CERCLA     Comprehensive Environmental Response, Compensation, and Liability Act
CFR        Code of Federal Regulations
cfm        cubic feet per minute
1,2 DCE    cis-1,2-Dichloroethylene
COC        contaminant of concern
DCA        dichloroethane
DCB        dichlorobenzene
DCE        dichloroethylene
DTSC       Department of Toxic Substances Control
EPA        U.S. Environmental Protection Agency
FDPU       Fresno Department of Public Utility
FRI        focused remedial investigation
FRP        fiberglass reinforced plastic
FMSL       Fresno Municipal Sanitary Landfill
ft         feet
FYR        Five-Year Review
gpd        gallons per day
gph        gallons per hour
gpm        gallons per minute
HDPE       high density polyethylene
hp         horsepower
IC         institutional control
LFG        landfill gas
MCL        maximum contaminant level
µg/L       micrograms per liter
mg/kg      milligrams per kilogram
mg/L       milligrams per liter
NCP        National Oil and Hazardous Substances Pollution Contingency Plan
NPL        National Priorities List
O&M        Operations and Maintenance
OSWER      Office of Solid Waste and Emergency Response
OU         operable unit
PCE        tetrachloroethylene
PTA        packed tower aerator
RA         Remedial Action
RAOs       Remedial Action Objectives
RCRA       Resource Conservation and Recovery Act
RI/FS      Remedial Investigation/Feasibility Study
ROD        Record of Decision
RPM        Remedial Project Manager or revolutions per minute
SARA       Superfund Amendments Reauthorization Act
TBC        to be considered
TCE        trichloroethylene
USACE      United States Army Corps of Engineers
VOC        volatile organic compound



                                          iii
Executive Summary
This is the second five-year review performed for the Fresno Municipal Sanitary Landfill1
(FMSL) Superfund Site located in Fresno, California (Site). This second five-year review was
conducted to determine whether the remedy at the Site is protective of human health and the
environment.

The FMSL is located four miles southwest of the City of Fresno in Fresno County, California at
1707 W. Jensen Avenue. The surrounding area is primarily agricultural; however, there are
several residences to the north and south of the landfill. FMSL was an unlined municipal landfill
that operated from 1935 to 1987 and covers approximately 145 acres. The landfill has since been
closed, covered, and revegetated. Part of the surrounding area has been redeveloped into a
regional park and sports complex.

Work at the FMSL under Superfund is performed under two operable units. Operable Unit 1
(OU-1) addressed landfill closure. Operable Unit 2 (OU-2) addresses volatile organic compounds
(VOCs) in groundwater in the landfill area. EPA issued a Record of Decision (ROD) in 1993 for
OU-1 (landfill closure). The ROD required the implementation of the following components: a
landfill gas (LFG) control system including LFG collection, conveyance, and treatment; a
landfill cover system; and a surface water management system.

In 1996, EPA issued the ROD for the OU-2 groundwater remedy. The ROD calls for
implementation of the remedial action in multiple phases. These phases are: 1) Phase 1 –
implement groundwater treatment, monitoring, and extraction, 2) Phase 2 - add extraction wells
to prevent downgradient VOC plume expansion, and 3) Phase 3 – aquifer restoration. Phase I
was implemented prior to the previous Five-Year-Review. This report follows up on the recent
implementation of Phase 2. Phase 3 will be implemented following the complete evaluation of
Phase 2.

Construction of the landfill cap, LFG control system control system, and surface water
management system for OU-1 occurred between 2000 and 2001. Construction of the
groundwater treatment facility for OU-2 occurred between 1999 and 2001. The construction for
both OUs occurred concurrently with the construction of the adjacent Fresno Regional Sports
Complex.

The OU-1 remedy is functioning as intended, preventing water from infiltrating the landfill and
capturing landfill gases for conveyance to the treatment facility. Future improvements to OU-1
will include addressing landfill subsidence on the eastern slope through a landfill cap regrading
project.

The remedy for OU-2 (groundwater remediation) is currently operating in Phase 2 (plume
perimeter containment). The groundwater extraction system currently consists of three
operational extraction wells, including two B-aquifer wells and one A-aquifer well. The

1
    also referred by the City of Fresno as the Fresno Sanitary Landfill.


                                                                   iv
groundwater treatment system is functioning as intended, and the preliminary analysis of data
from the first year of Phase 2 implementation suggests the new extraction wells are successful at
maintaining hydraulic control of plume boundaries. A comprehensive evaluation of the success
of Phase 2 will be presented in the Phase 2 Groundwater Remedial Action Evaluation Report
(scheduled for submittal during Fall 2010).

The remedy at the FMSL Superfund Site is protective in the short-term because there is no
exposure to hazardous waste or toxic substances. The LFG control system is operating as
intended, and the groundwater remedial action has prevented exposure to impacted groundwater
and is contributing to remediation of the groundwater VOC plume. In addition, to eliminate the
potential for human exposure to groundwater contamination, the City provides drinking water for
impacted nearby residents through the delivery of bottled water and/or the installation of
activated carbon wellhead filters. Also, the County and City have implemented a program to
enforce well installation zoning restrictions intended to prohibit private agricultural and
residential well installation in targeted areas surrounding the landfill. However, for the remedy to
be protective in the long-term, the finalization, execution, and recording of land use covenants
must be achieved.




                                                 v
Five-Year Review Summary Form

          SITE IDENTIFICATION
 Site name (from CERCLIS): Fresno Municipal Sanitary Landfill Superfund Site
 EPA ID (from CERCLIS): CAD980636914
 Region: 9            State: CA                 City/County: Fresno/Fresno

 SITE STATUS
 NPL status:       Final        Deleted      Other (specify)
 Remediation status (choose all that apply):             Under Construction       Operating     Complete
 Multiple OUs?*         YES            NO       Construction completion date: September 2001
 Has site been put into reuse?            YES       NO

 REVIEW STATUS

 Lead agency:        EPA          State      Tribe       Other Federal Agency ______________________
 Authors names: Zi Zi Searles, Marlowe D. Laubach, P.E.
 Author title: Remedial Project Manager,                       Author affiliation: EPA Region 9
 Chemical Engineer                                             USACE Seattle District
 Review period: December 2009 – September 2010
 Date(s) of site inspection: 11 March 2010
 Type of review: Statutory

 Review number:            1 (first)      2 (second)      3 (third)      Other (specify) __________
 Triggering action:
    Actual RA Onsite Construction at OU #____                         Actual RA Start at OU#____
    Construction Completion                                                   Previous Five-Year Review Report
    Other (specify)
 Triggering action date (from CERCLIS): September 27, 2005
 Due date (five years after triggering action date): September 27, 2010
* [“OU” refers to operable unit.]
**[Review period should correspond to the actual start and end dates of the Five-Year Review in CERCLIS.]




                                                                vi
                    Five-Year Review Summary Form, continued
Issue:

1. The institutional controls required by the ROD have not been fully implemented.

Recommendation:

1. Finalize, execute, and record land-use covenants for [name or describe what property we’re
talking about here].


Protectiveness Statement:

The remedy at OU-1 is protective in the short term because there is no current exposure and the
landfill cap and landfill gas treatment system are functioning as intended. The remedy at OU-2 is
protective in the short term because there is no evidence of current exposure and the County and
City of Fresno enforce restrictions that prohibit private well installation in areas surrounding the
landfill. However, for the remedy to be protective in the long-term, the finalization, execution,
and recording of land use covenants must be achieved.

Other Comments: None




                                                vii
I. Introduction

This is the second Five-Year Review report for the Fresno Municipal Sanitary Landfill (FMSL)
Superfund Site (Site) in Fresno, California. The first Five-Year Review report completed in 2005
was the triggering action for this review.

The purpose of a Five-Year Review (FYR) report is to determine whether the remedy at a
Superfund site continues to be protective of human health and the environment. The methods,
findings, and conclusions of reviews are documented in the FYR reports. In addition, FYR
reports identify issues found during the review, if any, and present recommendations and follow-
up actions to address those issues.

The United States Environmental Protection Agency (EPA) is preparing this FYR report
pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act
(CERCLA) §121 and the National Oil and Hazardous Substances Pollution Contingency Plan
(NCP). CERCLA §121(c) states:

    If the President selects a remedial action that results in any hazardous substances,
    pollutants, or contaminants remaining at the site, the President shall review such remedial
    action no less often than each five years after the initiation of such remedial action to assure
    that human health and the environment are being protected by the remedial action being
    implemented. In addition, if upon such a review it is the judgment of the President that
    action is appropriate at such site in accordance with section [104] or [106], the President
    shall take such action. The President shall report to the Congress a list of facilities for
    which such review is required, the results of all such reviews, and any actions taken as a
    result of such reviews.

EPA interpreted this requirement further in the NCP; 40 Code of Federal Regulations (CFR)
§300.430(f)(4)(ii) states:

    If a remedial action is selected that results in hazardous substances, pollutants, or
    contaminants remaining at the site above levels that allow for unlimited use and unrestricted
    exposure, the lead agency shall review such action no less often than every five years after
    initiation of the selected remedial action.

The purpose and focus of FYRs are further defined in EPA Office of Solid Waste and
Emergency Response (OSWER) Directive 9355.7-03B-P (EPA 2001).

EPA Region 9 conducted a review of the Site, assisted by the U.S. Army Corps of Engineers
(USACE) between December 2009 and September 2010. The Seattle District USACE project
delivery team (PDT), through an Interagency Agreement between EPA Headquarters and
USACE, assisted EPA in preparing this FYR report.

This second FYR report is a statutory review, following five years after the completion of the
first FYR report signed September 27, 2005.


                                                 1
II. Site Chronology

The following table summarizes, in chronological order, the major milestones, or notable events
for the Fresno Municipal Sanitary Landfill Superfund Site.

Table 1. Chronology of Site Events

                                      Event                                             Date
 FMSL accepted waste                                                                 1935 – 1987
 City of Fresno began closing process for the FMSL                                   August 1981
 Site listed on National Priorities List                                             October 1989
 Unilateral Administrative Order (UAO) No. 90-19 issued to the City of Fresno to
 apply an active vacuum system to the methane barriers and install a landfill gas   September 1990
 extraction system
 EPA and City of Fresno signed Administrative Consent Order No. 90-22 wherein       September 1990
 the City of Fresno agrees to conduct an RI/FS
 EPA issues Administrative Consent Order No. 90-23 to modify UAO 90-19 to
 develop vacuum system and implement a monitoring program of residences near        February 1991
 the landfill
 Feasibility Study conducted for Operable Unit (OU) 1 (Source Control)               January 1993
 Record of Decision (ROD) for OU-1 signed                                           September 1993
 Administrative Consent Order (90-22) amended (94-07) to include design of          December 1993
 landfill cap
 Remedial Investigation for OU-2 (groundwater) completed                              May 1994
 Human Health Risk Assessment complete for OU-2                                     September 1994
 Feasibility Study required by 1990 Consent Order completed, includes                  July 1996
 alternatives for OU-2
 ROD for OU-2 signed                                                                September 1996
 Consent Decree signed that included agreements to initiate a groundwater
 monitoring program, construction of OU-1 remedy and developing remedial            September 1997
 design, construction, and conducting cleanup for OU-2
 Remedial Design for OU-2 approved                                                  November 1998
                                                                                      May 1999 –
 Operation of Early Groundwater Remedial Action System                              September 2001
 Construction of OU-1 landfill cover, LFG control and surface water management      July 1999- June
 systems                                                                                 2000
                                                                                      June 2000 –
 Construction of OU-1 landfill cap, gas control wells and water system              September 2001
 OU-2 Phase I treatment system startup                                              September 2001
 Fresno Regional Sports Complex constructed                                              2001
 Decommissioning of nearby agricultural water wells completed                          April 2005
 First Five-Year Review Report completed                                            September 2005




                                                   2
                                     Event                          Date
Remedial Design of Phase 2 work completed                         April 2007
OU-2 Phase 2 Groundwater Remedial Action activities completed   September 2008
Start up of Phase 2 groundwater extraction and treatment        February 2009




                                                  3
III. Background

The FMSL is located four miles southwest of the City of Fresno in Fresno County, California, at
1707 W. Jensen Avenue. Figure 1 shows the site location.


Physical Characteristics
The approximately 145-acre FMSL is located in a primarily agricultural area; however, there are
several residences north and south of the landfill. The FMSL is located on a city block
surrounded by the following roads (clockwise from north): Jensen Avenue, West Avenue, North
Avenue, and Marks Avenue (see Figure 2). The landfill entrance is located on Jensen Avenue.
Agricultural fields border the landfill site to the west and east, and open land is south. The
landfill itself is 4,200 feet long by 1,250 feet wide. The side slope gradients range from 2 feet
horizontal to 1 foot vertical (2:1) on the west side to a more gradual 10:1 slope on the east side.
The landfill rises to an average height of 45 feet above the surrounding land that is essentially
flat

The FMSL sits at 265 feet above sea level in the eastern part of the San Joaquin Valley. It is
approximately 10 miles south of the San Joaquin River and 20 miles southwest of the Sierra
Nevada Mountains. The natural topography of the area is low relief. The FMSL is located in a
sunny region that experiences hot, dry summers and moderate winters. On average the annual
temperatures range from 37 to 98 degrees Fahrenheit. Winds are usually out of the northwest.
Annual precipitation is approximately 10.5 inches; the wet season is from November to April.

Land and Resource Use
From 1935 to 1987, the site was used as a landfill for a variety of municipal wastes. Since then,
the landfill has been closed and is undergoing remedial actions. Currently the landfill has an
impermeable vegetated cap in place. Recently, part of the site has been redeveloped into the
Fresno Regional Sports Complex. The complex includes soccer and softball fields. Land to the
west, east, and south of the landfill contains stormwater detention ponds.

The land within 1 mile of the site has been used in the past for farming, rural habitation,
industrial uses, and some commercial uses. A dairy farm is in operation immediately west of the
landfill while a farm with multiple greenhouses operates to the east. The land south of the
landfill contains one residence and open land. Western Elementary School is 0.5 mile east of the
site, and the Fresno Regional Wastewater Facilities are 3 miles west of the FMSL. According to
the City, there are no future plans to change the land use either at the site or in the surrounding
area. At the time of 1993 ROD, there were eight municipal wells within 3 miles of the site. Over
350,000 people received water from a blended supply that includes water from these wells.
These municipal wells have never been impacted by the FMSL. Historically, groundwater in the
immediate vicinity of landfill area is used for residential and agricultural purposes.

The Fresno Colony Canal, an unlined irrigation supply canal, runs along the eastern side of the
landfill. The canal used to extend through what is now the capped landfill. The original canal
bisected the FMSL site as surface waters. After the landfill expansion in 1945 towards what is


                                                 4
               no
                  rth

             Not to Scale
                                                       Sanitary
                                                       Landfill




Redding




Sacramento



             Stockton


                        Fresno


                          Bakersfield



                                          San
                        Los               Bernardino
                        Angeles

                                  San
                                  Diego




                                                                              Figure 1
                                                                     Site Location Map
                                                                  Fresno Sanitary Landfill
                                                         Infiltration Basin OO
                                                         (Located on West
                 north
                                                         Avenue 1,800 Ft. North
                                                         of Basin TT1)                         Infiltration
             0           1000
                                                                                                  Basin
                 Feet                                                                               TTI




                                      Jensen Ave.
Marks Ave.




                                                                                                          Fresno
                                                                                                          Colony
                                                                                                          Canal
                                  Park Lake                             Fresno
                                                                        Sanitary
                                                                        Landfill



                         Regional Park &
                         Sports Complex
                               Boundary




                                                                                                North Ave.

                                                                      South
                                           Hughes Ave.




                                                                   Detention
                                                                      Basin
                                                                                   West Ave.




                                                                                                              Figure 2
                                                                                                              Site Plan
                                                                                                Fresno Sanitary Landfill
today Jensen Avenue, the canal was replaced by an 18-inch concrete pipeline. The water supply
pipeline was used to carry water from the Fresno Colony Canal to fields west of the landfill. In
1996, the pipeline was relocated to the south end of the landfill in anticipation of groundwater
remedial activities. Water from the canal is used for local irrigation. When the canal is low on
water, water from Park Lake, for a man-made lake that receives treated FMSL groundwater, is
diverted to the canal for local irrigation purposes.

Geology
The FMSL is located in the San Joaquin Valley, which is the southern portion of the Central
Valley (the northern part is called the Sacramento Valley and the middle section is the
Sacramento–San Joaquin Delta). The Central Valley is composed of alluvial plains, flood plains,
and dissected uplands. The majority of the groundwater originates as runoff from the
surrounding mountains: the Coast Ranges to the west and the Cascades and Sierra Nevadas to the
east.

The Central Valley is in a structural trough approximately 400 miles long and 20 to 70 miles
wide. The valley trough is filled to great depths from erosion-derived sediments from the Coast
and Sierra-Nevada mountain ranges, and marine, continental sediments derived from past
lacustrine and inland sea environments.

The geology under the FMSL consists of interbedded layers and lenses of clay, silt, sand, and
gravels. These layers of Quaternary alluvium extend approximately 500 feet below ground
surface (bgs). Two geologic formations underlie the FMSL: the Riverbank and Turlock Lake
Formations. The Riverbank Formation is younger and found in the upper few hundred feet of
sediment in the Fresno area. The stratigraphic unit was deposited between 130,000-330,000
years ago. This unit is described as dominantly sandy (arkosic arenite) in texture containing less
than 15% matrix. Detrital sources for this unit include Sierran metamorphics, volcanics, and
dioritic to granitic rocks. During the Illionian glacial stage and older glacial stages, deposition of
this formation occurred in fluvial channels, and as overbank deposits on the ancient San Joaquin
River alluvial fan. The Riverbank Formation varies in thickness from 1 to 265 feet (ft).

Underlying the Riverbank formation is the Turlock Lake Formation. The Turlock Lake
formation dates to approximately 615,000 years based on the Friant Pumice Member. Situated
stratigraphically above the Friant Pumice Member is the Cocoran Clay member, the likely
aquitard between the B and C layers of the FMSL. The Turlock Lake Formation represents
deposition as overbank sediments on the fluvial floodplain during periods of flooding when
discharge exceeded river/stream channel capacity. The sequence coarsens upward and contains
fluvial sandstone with scattered pebbles overlying better sorted, finer grained floodplain
siltstone. The Turlock Lake Formation varies in thickness from 165 to 720 ft.

Hydrogeology
The A-Aquifer is found 50 to 95 feet bgs. The A-Aquifer is mostly fine- to medium-grained,
poorly-graded sand with interbedded layers of coarse-grained sands and very fine-grained stiff
clayey silts. The ponds associated with the Fresno Regional Wastewater Facilities, located west
of the site, have created a high water table or recharge mound. Regional hydraulic conductivity
has been calculated from 1 to 3 feet per day. Local flow rates based on groundwater monitoring


                                                  5
data are approximately 1 foot per year. Below the A-Aquifer is an aquitard composed of red-
brown sandy clay, gray clayey silt, and brown-gray clayey silt. The B-Aquifer spans from 110 to
150 feet bgs. The B-Aquifer is composed of thick, inter-layers of stiff clayey silt and poorly-
graded, very fine to medium-grained sand that contains coarse-grained mica flakes. The aquitard
at the base of the B-Aquifer is composed of thick clayey silt layers. The C-Aquifer is 200 to 240
feet bgs and is composed of inter-layered well- and poorly-graded sand and clayey silt. Sand
sized fragments of volcanic pumice (pyroclastic material; Friant Pumice member) are part of the
soil matrix in this layer.

The regional groundwater flow direction in this area is toward the southwest. In the immediate
vicinity of the landfill, water flows in a southerly direction. There are some localized influences
as a result of municipal groundwater extraction, private pumping, and man-made ponds.
Agricultural, municipal, and private water use of the underlying aquifer known as the Fresno
Sole Source Aquifer (contiguous with the greater San Joaquin Valley aquifer) has resulted in a
40-foot drop in water levels since the 1940’s. The California Department of Water Resources
and local authorities are working to stabilize or reverse declining aquifer water levels in the
coming decade.

History of Contamination
The FMSL, owned and operated by the City of Fresno from 1935 to 1987, is the oldest
compartmentalized landfill in the Western United States. The State of California designated the
FMSL as a Class III landfill (a municipal landfill that accepts non-hazardous solid waste)
(California Code of Regulations [CCR] Title 27, Division 2, Subdivision 1, Chapter 3,
Subchapter 2, Article 3, Section 20260). The unlined landfill was filled with municipal trash and
some liquid waste.

An average of 16,500 tons of solid waste was disposed of at the FMSL per month. The total
amount of waste has been calculated to be about 4.7 million tons or 7.9 million cubic yards. In
addition to municipal solid waste, 1,600-gallon tanker trucks disposed of battery acid at the
FMSL twice a week from the late 1950s to the mid-1960s. In 1984, nearby residents wrote
complaint letters to the California Department of Health Services (DHS), which at the time was
the lead State agency responsible for investigating reports of contamination (the California
Department of Toxic Substances Control (DTSC) is the current lead State agency for the FMSL).
In June 1984, DHS conducted a preliminary site inspection and found that methane gas was
migrating offsite. DHS completed a review of the potential for volatile organic compound
(VOC) contamination of groundwater and found that such a potential existed.

After it was discovered FMSL methane was migrating offsite, numerous studies were conducted
to characterize the extent contamination. The studies showed that the highest VOC
concentrations in groundwater were downgradient, or west of, the landfill. The VOC
concentrations were higher in the shallow (less than 70 feet bgs) and intermediate wells (70 to
110 feet bgs) than in the deep wells (greater than 110 feet bgs). VOCs, including vinyl chloride,
trichloroethylene (TCE), tetrachloroethylene (PCE), 1,1-dichloroethylene (DCE), 1,1-
dichloroethane (DCA), dichloropropane, dichloropropene, trichlorofluoromethane (Freon-11),
and methylene chloride, were all detected in the groundwater. Purgeable aromatic compounds,
including benzene, chlorobenzene, 1,2-dichlorobenzene (DCB), and 1,4-DCB, were also



                                                 6
detected. Nitrate was the only inorganic compound detected above maximum contaminant levels
(MCLs). No polychlorinated biphenyl (PCB) compounds or pesticides were detected in the
groundwater.

The remedial investigation (RI) completed in 1994 focused on identifying type, concentration,
and distribution of hazardous chemicals and known carcinogens (contaminants of concern or
COCs). Groundwater and soil gas were found to be impacted with several COCs. It was
determined that the ambient air and soil were not significantly contaminated. The RI found that
disposed liquid waste had contributed more to the groundwater contamination than the leachate
generated from percolation of water through the landfill waste. Five COCs had a maximum
detection exceeding 10 times their federal MCL value: PCE, TCE, trans-1,2-DCE, vinyl
chloride, and methylene chloride. Benzene, 1,1-DCA, and 1,2-DCA all exceeded their federal
MCLs as well. 1,2-DCA exceeded the California MCL. Nitrate was the only inorganic
constituent detected above MCLs. The presence of nitrate has been attributed to the nitrogen-
based fertilizers used for agriculture in the area. The likely source of trans-1,2-DCE, cis-1,2-
DCE, and vinyl chloride is PCE and TCE. Trans-1,2-DCE, cis-1,2-DCE, and vinyl chloride are
present as daughter products from the anaerobic biodegradation of TCE and PCE.

The RI showed soil gas was contaminated up to a distance of 1,000 feet from the perimeter of the
landfill. Methane was found up to a distance of 500 feet from the perimeter. There were no
consistent trends of the vertical distribution of the VOCs and methane in soil gas. PCE, TCE,
vinyl chloride, TCA, Freon-12, and methane were the only VOCs that were consistently found in
soil gas.

The 1994 Human Health Risk Assessment (HHRA) (EPA, 1994) assumptions for future land use
at the site were: (1) the perimeter of the area would be fenced off, (2) access to the site would be
controlled, (3) the site would be capped, (4) nothing would be built directly on top of the landfill
because of potential subsidence, and (5) a worker would be present for 8 hours per day on the
site after remediation. Therefore, potential receptors were determined to be adult and child
offsite residents, offsite workers, onsite workers, and onsite trespassers. The mechanisms by
which these receptors could be exposed include dermal exposure through direct contact with
contaminated soil, ingestion exposure through percolation of VOCs into groundwater supplies
used for drinking, and inhalation exposure through 1) VOC volatilization into the ambient air, 2)
fugitive dust generation via wind erosion, and 3) VOC volatilization into soil gas with
subsequent transport through soil and into buildings. The constituents of potential concern were
based on the most recent data available at the time. The HHRA concluded that inhalation of
chemicals in indoor air contributed most to total risk. This assessment was based on the
assumption that inhalation would occur during showering with impacted groundwater. Under this
scenario, 99% of the inhalation risk was due to exposure to vinyl chloride. Prior to the risk
assessment, the City performed in-home sampling (at 3 residences and 2 background homes) and
determined that there was no potential cancer risk from indoor air.

 Initial Response
In 1983, the City initiated an assessment of groundwater contamination and landfill gas (LFG)
migration. The 1986 assessment results determined that hazardous constituents were disposed of
in the landfill. The next year, additional sampling led to the conclusion that contamination had



                                                 7
moved vertically beneath the landfill as deep as 100 to 150 feet bgs. Other results revealed that
LFG extended 150 feet laterally from the landfill edge. These findings and other factors
prompted the City to discontinue the acceptance of waste at the landfill by 1987. In preparation
for closure, an Air Quality Solid Waste Assessment Test report was prepared in 1988. The Solid
Waste Assessment Test findings showed that ambient air contained benzene, methylene chloride,
PCE, carbon tetrachloride, trichloroethane (TCA), and TCE. The concentrations ranged from
0.07 to 2.6 parts per billion by volume (ppbv). TCA, TCE, and PCE were also detected in the
surface air of the landfill (2 to 3 inches above the landfill). The study also found VOCs above the
detection limit in interior gas wells.

In 1988, the City installed two methane barriers to protect residences to the north and the south.
In 1990, a soil gas survey found elevated methane and vinyl chloride just outside the methane
gas barriers, indicating that the methane gas was migrating below or around the methane gas
barriers. The City began removal of migrating landfill gas (VOCs) by placing a vacuum on the
existing gas migration barrier. The vacuum system proved ineffective as the methane barriers
were not designed to work in conjunction with vacuum extraction.

The understanding of the lateral and vertical extent of groundwater contamination was expanded
in 1989, when an Environmental Impact Report for landfill closure, a grading and drainage plan
report, and a closure and post-closure maintenance plan were issued, and a Feasibility Study was
conducted. In October 1989, EPA placed the landfill on the National Priorities List. The remedial
investigation showed groundwater was contaminated largely by VOCs. The highest
concentrations were for trans-1,2-DCE, methylene chloride, TCE, PCE, and vinyl chloride.

In 1992, the City offered to deliver bottled water and install activated carbon wellhead treatment
systems to residences within a city block of the landfill. The City offered these services to
potentially impacted residences as a goodwill gesture to prevent local pumping from the A-
aquifer. Since the last FYR, a total of eleven residences have used one or both services from the
city. Of the eleven residences, 9 receive bottled water and six residences and one store associated
with a residence have activated carbon wellhead filters. All residential wells within a city block
of the landfill are tested annually by the City and to date have met drinking water standards.

The City was proactive in conducting the Early Groundwater Remedial Action (Early Action) for
groundwater cleanup. The Early Action involved the installation and operation of three
extraction wells (PW-1A, PW-2A, and PW-3A). In addition, the City continued monitoring 45
existing wells and installed six additional monitoring wells. The Early Action treatment unit
included two modular hydraulic venturi air strippers. The north stripper treated groundwater
from PW-1A and PW-2A. The south stripper treated groundwater from PW-3A. The treated
effluent was conveyed to the South Detention Basin via transmission piping. Startup of the Early
Action groundwater treatment system began in May of 1999. The Early Action for groundwater
treatment was performed under EPA oversight and was not required of the City of Fresno under
the 1990 Administrative Consent Order.

Basis for Taking Action
Groundwater aquifers impacted by contaminants associated with the landfill are used as a source
of water for residential and agricultural wells. In 1994, both residential and agricultural wells



                                                 8
were located near the known extent of the groundwater plume, which contained several
contaminants that exceeded drinking water standards (i.e., MCLs). Residents with such wells
were at risk of exposure to contaminated drinking water. In addition the Human Health Risk
Assessment found that nearby residents were potentially at risk from VOC vapor intrusion and
exposure to landfill gases. Because of these potential health risks, EPA determined that remedial
action was necessary.




                                                9
IV. Remedial Actions
Remedy Selection
EPA organized the remedial action work at FMSL into two operable units: one for source control
and the other for groundwater treatment.

OU-1 (Source Control)
The systems in the remedy for OU-1 are intended to: 1) collect and control the release of landfill
gas in the surface and in the subsurface, 2) control the infiltration of storm water into the waste
which would result in leachate percolation into the underlying groundwater, 3) collect leachate
encountered in the gas extraction wells or LFG condensate encountered in the gas collection
system, 4) control the intrusion of oxygen into the waste, which would happen if a vacuum
system were installed without a landfill cover, 5) control erosion and off-site transport of
contaminated soils, 6) collect and manage the incident storm water, and 7) treat the collected
LFG to destroy any harmful contaminants in the LFG stream.

Components of OU-1 remedy are:
• A landfill cover system, which includes a series of functional layers (foundation layer,
  synthetic geomembrane, soil layer to support vegetative growth) that minimize water
  infiltration into the underlying refuse, provide erosion control, and act as a barrier to fugitive
  landfill emissions
• A LFG migration monitoring system consisting of monitoring probes along the landfill
  perimeter.
• A LFG collection and conveyance system that includes interior gas extraction wells, perimeter
  gas extraction wells, a blower system, and a piping system to move the LFG to the treatment
  system.
• A LFG treatment system (flare) to combust LFG onsite.
• A LFG condensate collection system to manage condensate that would form during the
  conveyance of the LFG.
• (Not installed) A contingency leachate collection system that includes liquid extraction pumps
  at the bottoms of the gas extraction wells and a network of piping to move the leachate to a
  location where it would then be trucked offsite for treatment. This system would be
  implemented if the leachate liquid found in the gas wells was determined to be a threat to
  groundwater.

OU-2 (Groundwater Remediation)
The objective of OU-2 is to restore the aquifer to beneficial use in a timely and cost-effective
manner. In order to facilitate this objective, the 1996 ROD calls for the implementation of
groundwater remedial action in three distinct phases over a period of several years. The
following are the objectives of the respective phases:

   •   Phase 1 - Create a hydraulic barrier at the downgradient perimeter of the FMSL to
       prevent contaminated groundwater beneath the landfill from mixing with downgradient
       waters.




                                                10
   •     Phase 2 – Add additional extraction wells to prevent the downgradient expansion of the
         groundwater plume.
   •     Phase 3 - Actions to facilitate the restoration of the aquifer to beneficial use.

Beneficial use status will be achieved when groundwater contaminant levels are at or below
MCLs. Table 2 below presents the MCLs for the contaminants of concern as presented in the
OU-2 ROD

   Table 2. MCLs for Contaminants of Concern
        Contaminant of Concern                 MCL (µg/L)
       Trichloroethylene                           5(1)
       Tetrachloroethylene                         5(1)
       Vinyl chloride                            0.5(2)
       1,1-dichlorothylene                         6(2)
       1,2-dichloroethane                        0.5(2)
       trans-1,2-dichloroethene                  100(1)
       cis-1,2-dichloroethene                      6(2)
       1,2-dichloropropane                         5(1)
       1,2-dichlorobenzene                       600(1)
       1,4-dichlorobenzene                         5(2)
       Benzene                                     1(2)
       Chlorobenzene                              70(1)
       Chloroform                               100(1)(3)
       1,1-dichloroethane                          5(1)
       Trichlorofluoromethane                    150(1)
       Toluene                                   150(1)
         1 – Federal MCL
         2 – California EPA MCL
         3 – MCL shown is for Total Trihalomethanes, a class of chemicals that includes chloroform



Components of the OU-2 remedy are:
• Network of groundwater monitoring wells, located upgradient of the landfill (background
  wells), at the downgradient edge of the FMSL, within the plume, and at the plume boundary
• Groundwater extraction wells on western side of landfill
• Packed tower aerator for treatment of the extracted groundwater
• Decommissioning of agricultural wells (downgradient of the FMSL) that were believed to
  adversely impact extraction objectives.
• Institutional controls (ICs) restricting the installation of water supply wells in the impacted
  aquifer and limiting site access. Controls may also be placed on the use of the groundwater
  pumped from the contaminated aquifer by existing wells.

The remedy is to be implemented in three phases to optimize the design elements including the
number of wells, location of wells, and pumping rates.




                                                            11
Remedy Implementation
OU-1
Construction of the OU-1 components occurred between June 2000 and September 2001. The
remedial action included installation of a landfill final cover and LFG control with surface water
management systems. The final cover system elements included a foundation layer, geosynthetic
low permeability membrane (HDPE), a drainage geocomposite layer, filter fabric, and soil layer
capable of supporting vegetative growth. The LFG collection system included a perimeter gas
monitoring probes, LFG collection wells, conveyance system, and LFG treatment system (LFG
flare). The surface water management system consisted of drainage channels, downdrains, and
stormwater retention basins.

The 1993 ROD called for a leachate collection system, if necessary. A leachate collection system
was not designed or constructed because of the small quantity of leachate reported in the 1994
Remedial Investigation report. Borings drilled through the refuse at the FMSL showed no signs
of saturated waste. Refuse leachate was not found, and the distribution of inorganic water quality
parameters in the groundwater suggested that municipal refuse leachate was not a significant
source of groundwater contamination at the site.

OU-2
The groundwater extraction and treatment system consists of a series of extraction wells, packed
tower aerator for groundwater treatment, and off-gas combustion at the existing LFG flare
(designed and constructed under OU-1). The Control Building houses the control system for the
groundwater system and an administrative area (office). This building is located west of the
landfill close to extraction well PW-2A. The Control Building, packed tower aerator and flare are
within a walled and gated yard. Treated groundwater is discharged to Park Lake, located west of
the Control Building, or to the South Detention Basin, located south of the landfill. Park Lake is
designated as the stormwater detention basin during the rainy season; however, water from the
Park Lake can be transferred to the South Detention Basin, as needed, for irrigation purposes.
The soils in the South Detention Basin are highly permeable resulting in a rapid infiltration of
delivered water. Design criteria for the packed tower aerator can be found in Appendix 10.

Startup of the Phase 1 Groundwater Remedial Action occurred in September 2001. Phase 1
included 5 extraction wells, PW-1A, PW-2A, PW-3A, PW-4A, and PW-5A (see Figure 3). A
total of 71 monitoring wells were installed between 1986 and 2001 (see Figure 4). Of these 71,
34 are A-Aquifer monitoring wells, 24 are B-Aquifer monitoring wells, and 13 are C-Aquifer
monitoring wells. These wells were installed to monitor contaminant concentrations in the three
aquifer zones along the landfill perimeter, within the plume footprint, and at downgradient
locations near the plume boundary. Decommissioning of three private agricultural wells was
completed in April 2005 as the operation of these wells was suspected of pulling contamination
vertically into the lower aquifers.

The Phase 1 Groundwater Remedial Action Evaluation Report (CDM, 2007) was prepared in
2006. The evaluation determined that the objectives of Phase 1 remediation were met with the
exception of institutional controls implementation and the development of the landfill restrictive
covenant (LFRC). The evaluation also determined that operation of the Phase 1 groundwater
extraction wells has made progress toward achieving Phase 2 and Phase 3 objectives. Evaluation


                                                12
                 north

             0           1000

                 Feet




                                      Jensen Ave.
Marks Ave.




                                                                     Groundwater
                                                                   Extraction Well
                                                                                                         East Basin

                                                           PW1B            Raw Water
                                                           PW1A              Influent



                                                                         Groundwater
                                  Park Lake                           Treatment Plant
                                                           PW2A
                                                                                Yard



                                                                    PW5A
                         Regional Park &
                         Sports Complex                                                             Treated Water
                               Boundary                                                             Discharge
                                                                    PW4A


                                                                    PW4B




                                                                    PW3A
                                                                                                      North Ave.

                                                                     South
                                           Hughes Ave.




                                                                  Detention
                                                                     Basin
                                                                                        West Ave.




                                                                                     Figure 1-2 Figure 3
                                                         Groundwater Remedial Action Components (OU-2)
                                                                                                      Fresno Sanitary Landfill
                                                                                                 Legend
                                                                                                          Landfill Perimeter Fence
                                                                                                          Pre-Remedial Action Monitoring Wells
                 north                                                                                    Monitoring Wells Installed During
                                                                                                          Phase 1 and Phase 2 Remedial Action
             0           1000                                                                             Extraction Wells Installed During
                                                                                                          Phase 1 and Phase 2 Remedial Action
                 Feet                                                                                     Former Extraction Well Converted
                                                                                                          to Piezometer
                                                                                                          Residential Water Supply
                                                                           CDM7A,C



                                                                                  1650J        1642J 1346J   1304J
                                                                   1912J
                                          Jensen Ave.
                                                                     CDM6A

                                                                                                                                   UW1A,B,C

                                                                                    CDM15A,B,B2,C
Marks Ave.




                                                                           PZ3B        MW1

                                                                                          W1R
                                                                         DW2A,B,C
                                                                                       PZ1A, B
                                   CDM5A,B,C                                                                          W2
                                                                    PZ2A,B        PW1A, B

                                                                           PZ4B,C
                                                                                          MW2

                  CDM18A,B,C                                                                                                         CDM1A,B,C
                                                                             PW2A
                                                                                                                             UW2A,B,C
                                                                                          W5
                                                                CDM8A,B

                                                                            MW3
                                          CDM8C                                        PW5A

                                                                CDM13A,B,B2,C             W4

                                                                         DW1A,B,C      PW4A, B
                     CDM17A,B,C     CDM4A,B,C                       CDM12A,B              PZ6B                        W3


                                                                CDM19B                 PZ5A,B,B2,C

                                                                                                      MW4
                                                                            PW3A2                                          1770N
                                                                                          PW3A            W6
                                CDM3A,B
                                                                                                                                   North Ave.

                                                                                                             2045N
                                                                 2429N
                                   CDM16A,B,C
                                                                                                               West Ave.




                                                                                     CDM2A,B,C
                                                  Hughes Ave.




                                                                                                                      Figure 4
                                                                                      Extraction and Monitoring Well Locations
                                                                                                                               Fresno Sanitary Landfill
recommendations included implementing the Phase 2 groundwater remedial action and
enhancing system operations to include upgrades to the plume capture system, and the formal
implementation of institutional controls.

The Phase 2 upgrade construction to the groundwater extraction system began in December
2007. The start-up of two new extraction wells in the B-aquifer, PW-1B and PW-4B, occurred in
August 2008. Extraction well PW-3A was replaced due to biofouling with extraction well PW-
3A2. In addition to the installation of the new extraction wells the following were installed: two
new B-aquifer piezometers, one new B-aquifer monitoring well, and conversion of extraction
well PW-3A to a piezometer. Phase 2 (plume containment) activities are currently ongoing,
which includes groundwater extraction and treatment from the A- and B-aquifers and
groundwater monitoring within the A-, B-, and C-aquifers.

The institutional controls selected in the 1996 ROD have not been fully implemented. An
informal well installation program that restricts the drilling of private wells near the landfill has
been implemented between the City of Fresno and Fresno County. In addition, restrictive
covenants for the landfill area are currently in draft form but have not been finalized and
recorded.

System Operations and Maintenance
OU-1 Operations and Maintenance
The landfill gas collection system and flare operate continuously and the gas extraction wells are
inspected and adjusted monthly. The landfill cap is maintained to prevent burrowing animals
from damaging the geomembrane. To ensure cap integrity, an abatement program is in place that
uses poisoned squirrel bait to control population increases of burrowing animals. This program
includes the placement of screens at the ends of LFG collection system condensate pipes. The
City representative, Mr. George Slater, indicated possibly using owls for rodent control in the
future. All gas condensate collected in pipes is discharged directly into the sanitary sewer.

Subsidence of the landfill final cover is occurring along the east slope of the landfill. At the time
of this report, the City had completed the design for the FMSL Landfill Regrading and Landfill
Control System Maintenance (CDM, 2010). The vegetative cap is well established and in place.
Originally, growth of vegetation required watering by a landfill wide sprinkler system. However,
the sprinklers are no longer used nor maintained as the vegetative cover is currently well
established even during the dry season. The sprinkler system is not explicitly a required
component of the remedy.
California Code of Regulations, Title 27, Section 21180 requires closed landfills be maintained
and monitored for a period of not less than 30 years after the completion of closure of the entire
solid waste landfill. Areas in which the final landfill cover is placed shall be maintained in
accordance with an approved post-closure maintenance plan which shall consist of site security,
gas monitoring and control system maintenance. The post-closure maintenance plan for FMSL
was included as Appendix E of the Final Remedial Action Report for Operable Unit 1 Fresno
Sanitary Landfill (Kleinfelder, 2003). An ARAR for the OU-1 ROD lists Title 14, California
Code of Regulations (CCR) Section 17788 as the regulation FMSL is required to comply with
for post-closure maintenance. Since the ROD was issued in 1993, the State has combined the
primary state statutory provisions governing solid waste management under California Integrated


                                                  13
Waste Management Board (CIWMB) and State Water Resources Control Board (WRCB) under
Title 27 Section 21180. ROD citations will be updated in the future with an Explanation of
Significant Differences (ESD) or Memo to File.

A series of thefts since the last Five-Year-Review has resulted in the loss of maintenance
equipment and data. EPA is currently evaluating the security component of post-closure
implemented by the City.

The LFG collection system and flare operates continuously 24 hours a day, 7 days a week.
Figure 5 shows the location of the LFG extraction wells. Manual adjustments to LFG wells are
performed on a monthly basis. Typically the LFG flow remains constant, with each gas
extraction well capable of operating up to 100 cubic feet per minute with an average
concentration of 34 percent (%) methane. In 2008, the City implemented a landfill cover and
drainage system inspection and maintenance program. The intent of the inspection program is to
conduct periodic site-wide inspections of the landfill cover, LFG, and drainage systems. Problem
areas identified during the site inspection are corrected in order to maintain proper functioning of
the landfill cover and drainage features.

OU-2 Operations and Maintenance
Contaminated groundwater is pumped to the treatment system for VOC removal via air stripping
using a packed tower aerator. To prevent scaling and biofouling in the tower packing material,
anti-scalant and sodium hydrochloride is injected. Influent and effluent to and from the treatment
plant are monitored quarterly for COCs and inorganic water quality parameters. Effluent is piped
to a junction box via gravity where the flows can be directed to Park Lake or the South Detention
Basin depending on irrigation needs and time of year. Contaminants have not been detected in
the effluent at anytime within the last five years.

Phase 1 included the installation of five A-aquifer groundwater extraction wells on the western
downgradient edge of the landfill (see Figure 3). Subsequent to their installation, a regional
decline in water levels rendered extraction wells PW-1A, PW-3A, PW-4A, and PW-5A
inoperable. Well PW-4 was in use from 2000 to April 2008. Well PW-5A was in use from 2003
to the last half of 2009. Wells PW-1A and PW-2A remained in use through early 2010 but are no
longer in use. The Phase 2 Groundwater Remedial Action called for the installation of two B-
aquifer extraction wells as contaminants had migrated vertically to the B-Aquifer due to the
depletion of water in the A-aquifer. The B-aquifer extraction wells, PW-1B and PW-4B, and A-
aquifer well PW-3A2 are the three operating extraction wells on site today. The groundwater
treatment system has processed over 286 million gallons of contaminated groundwater and
extracted 84.4 kg of VOCs since the last Five-Year-Review. Extraction wells are sampled
quarterly.

A total of 71 monitoring wells are used to monitor the groundwater plume. These wells monitor
all three aquifers zones at various locations downgradient from the plume and extraction wells.
Regional water level declines have rendered many A-aquifer wells dry or near dry with
insufficient water to sample. These 18 dry A-aquifer wells include: CDM-1A, CDM-6A, DW-
1A, DW-2A, MW1, MW2, MW3, MW4, PZ1A, PZ2A, W1R, W2, W3, W4, W5, W6, UW1A,
and UW2A.



                                                14
Figure 5 - Northern Landfill Gas Locations
Figure 5 (cont'd) - Southern Landfill Gas Well Locations
Groundwater monitoring occurs quarterly. During these events, groundwater elevations are
measured and water samples are collected. Groundwater samples are analyzed for volatile
organics and contaminants. The data from these sampling events is provided to EPA and the
State of California. A formal report is prepared annually that includes all quarterly monitoring
results and any updates to the treatment system or landfill gas and groundwater mitigation
systems.

The City provides bottled water and activated carbon wellhead treatment to residences north and
south of the landfill. To ensure residents are protected from contaminated groundwater exposure,
the City samples residential wells annually during the month of April. Any sampling events that
show results above non-detect will require an increase in the frequency of sampling.

Fresno Regional Sports Complex
The Fresno Regional Sports Complex is operated and maintained by the Fresno City Parks and
Recreation Department and lies west and south of the landfill (see Figure 3). The facility
includes softball, soccer fields, restrooms, concession facilities, a paint ball range, a playground,
and other recreational facilities. Park Lake, the reservoir for treated groundwater, is stocked
seasonally with fish for park visitors that wish to fish recreationally. The sources of water for the
Park Lake include treated water from the groundwater treatment plant, the Fresno water supply,
irrigation canals, and stormwater. Park Lake operates as a stormwater detention basin during the
winter months.

Operation and Maintenance Costs
The following table provides the annualized remedial action costs for the groundwater treatment
remedial action. No costs were available for the landfill remedial action.


   Table 3. Annualized OU-2 Operation and Maintenance Costs
                              Description                                        Cost
     Direct Labor                                                                $125,000
     Direct Materials
        Equipment Replacement/Repair (pumps, etc.)                                $17,500
        Chemicals                                                                 $74,000
     Power                                                                        $84,000
     Groundwater Monitoring Program
        Analytical lab                                                            $43,000
     Engineering
        Groundwater Monitoring and Assistance and Reporting                       $43,000
        Operations Assistance                                                     $15,200
     Total Annual O&M costs                                                      $402,000




                                                 15
V. Progress Since the Last Five-Year Review

The previous Five-Year Review determined that:

        A protectiveness determination of the remedies for both OU-1 and OU-2 cannot be made
        at this time until further information is obtained and actions are completed. The
        information and actions required for OU-1 include demonstration that the flare performs
        adequately to prevent/eliminate emission levels that are unsafe, resolution of the
        potential dioxin emissions issue (i.e., perform modeling or sampling and/or review data
        from similar landfill site), and completion of a screening-level ecological risk
        assessment. It is expected that these actions will take no more than 6 months to complete.

        The information and actions required for OU-2 include demonstration of adequate
        capture and migration control of the contamination plume through capture-zone
        analysis. The Phase I evaluation will assess the overall efficacy and protectiveness of the
        remedy. This evaluation will provide recommendations for any further modifications and
        is anticipated to be complete in early 2006. The action required for both operable units
        relates to institutional controls. For the remedy to be protective in the long-term,
        institutional controls such as execution and recordation of a restrictive covenant for the
        property that would bind current and future owners and restrict certain uses of the site
        itself, including residential use and prohibit use of the groundwater underneath the site,
        need to be implemented. It is anticipated that this action would be completed by 2007.

        As the required information is obtained and actions are completed at each of the
        operable units, the protectiveness determination will be made.

The following table summarizes the issues identified in the previous Five-Year Review and the
actions taken to address them.

Table 4. Progress Since Last Five-Year Review
  Issues from           Recommendations/ Follow-up                    Completion       Action Taken and Outcome
    Previous                    Actions                                 Date
     Review
Site-wide           An ESD will be produced for the site                 2007      Although an ESD has not been issued,
institutional       including comprehensive institutional                          restrictive covenants for the landfill area
controls need to be controls including a restrictive covenant.                     are currently in draft form. Additionally,
in place                                                                           an informal well installation program
                                                                                   that restricts the drilling of private wells
                                                                                   near the landfill has been implemented
                                                                                   between the City of Fresno and Fresno
                                                                                   County. The EPA expects to finalize,
                                                                                   execute, and record land use covenants
                                                                                   by December 2012. Concurrently, EPA
                                                                                   will, as necessary, issue an ESD to
                                                                                   clarify the scope and form of ICs that
                                                                                   need to be in place until groundwater
                                                                                   cleanup goals are achieved.




                                                                 16
  Issues from             Recommendations/ Follow-up                     Completion        Action Taken and Outcome
    Previous                      Actions                                  Date
     Review
The flare did not      The second compliance testing report will            2007       The Second Compliance Testing Report
achieve 98%            include how to address any problems                             (Kleinfelder, 2007) was submitted to
destruction            identified with the performance of the                          EPA and approved. The report
efficiency             flare. Additionally, resolutions will be                        documented a second round of flare
                       identified for all outstanding                                  testing and air emission modeling
                       recommendations included in the First                           results, indicating that emissions from
                       Compliance Testing Report (July 2004).                          the flare are far below the EPA and State
                                                                                       of California threshold for an acceptable
                       This includes evaluating data collected as
                                                                                       cancer risk from environmental impacts
                       part of the second compliance testing to
                                                                                       from toxic compounds. At the time of
                       determine the mass of VOCs in the
                                                                                       this report, flare destruction efficiency
                       exhaust air from the groundwater
                                                                                       was 96.7% and the outlet concentration
                       treatment pack tower aerator (PTA) to
                                                                                       ranged from 1 to 8 ppmv. The flare is in
                       account for all VOC sources. Because of
                                                                                       compliance with San Joaquin Valley Air
                       the correlation between the VOC
                                                                                       Pollution Control District SJVAPCD
                       concentrations in groundwater and the
                                                                                       Rule 4642 Solid Waste Disposal Sites
                       potential VOC emissions in the exhaust
                                                                                       (Adopted July 20, 1995, Amended April
                       air from the PTA, future scheduled
                                                                                       16, 1998) which requires that a control
                       compliance tests should include review
                                                                                       device achieve a VOC destruction
                       and discussion of the total VOC influent
                                                                                       efficiency of 98% by weight or reduce
                       groundwater concentrations. This review
                                                                                       VOC concentration to 20 ppmv or less
                       should include verification that no
                                                                                       (measured as methane) corrected to 3%
                       significant changes are found, would the
                                                                                       oxygen.
                       retesting of the PTA exhaust air emissions
                       be necessary.
Absence of dioxin      1) Perform modeling to evaluate what               April 2006   Kleinfelder provided an assessment of
testing of the flare   dioxin emission levels from the flare                           dioxins from the flare. The assessment
                       would result in a 10-6 excess cancer risk.                      included modeling and review of data
                       2) Consider reviewing data from a similar                       from similar landfill sites. The results
                       landfill site where dioxin testing has                          from the assessment show that the
                       recently been performed to draw further                         estimated cancer risk from dioxins
                       conclusions about the need for dioxin                           created by the flare was less than 10-6 for
                       testing.                                                        all potential receptors.

                       3) Perform sampling if analysis described
                       above exceeds health protective standards.
                       4) When evaluating stack performance,
                       consider whether modifying the stack to
                       incorporate a sample port can be easily
                       accomplished
No ecological risk     Conduct a screening-level ecological risk          April 2006   An Ecological Risk Contaminant
assessment has         assessment or an acceptable alternative                         Pathway Analysis was performed in
been conducted         assessment that evaluates the                                   2006. The results of this analysis showed
                       protectiveness of the remedy.                                   no complete ecological exposure
                                                                                       pathways.
Squirrel bait and      Conduct a screening-level ecological risk          April 2006   An Ecological Risk Contaminant
heat of the flare      assessment or an acceptable alternative                         Pathway Analysis was performed in
are potential          assessment that evaluates the                                   2006. The results of this analysis showed
threats to             protectiveness of the remedy.                                   no complete ecological exposure
endangered                                                                             pathways and no significant ecological
species in the area.                                                                   impact by on-going remediation
                                                                                       activities.




                                                                    17
  Issues from           Recommendations/ Follow-up                   Completion       Action Taken and Outcome
    Previous                    Actions                                Date
     Review
Debris and water     1) Conduct maintenance on the gas                  2007      Gas well maintenance was performed in
were found in        monitoring wells.                                            2007 to address high concentration of
some of the gas      2) Continue to monitor methane levels.                       methane found in gas wells. These
monitoring wells.                                                                 maintenance activities are documented in
Also, one of the     3) If the methane levels do not decrease,                    the Landfill Gas Migration Remediation
wells, MMW5 at       the City may need to install an additional                   Procedure, Kleinfelder 2007. Since
25 ft deep,          well between MMW5 and the property                           2007, methane gas levels in well MMW5
detected methane     line along Jensen Avenue.                                    have been non-detect.
at 13.4% by
volume
The vertical         1) Continue to monitor the concentration        Early 2006   By April 2005, three agricultural wells
migration of         changes in well clusters.                                    were decommissioned which were likely
constituents         2) Use the groundwater model to predict                      contributing to increased COC
appears to be        how vertical migration of COCs can be                        concentrations in lower aquifer zones.
increasing the       reduced.                                                     Groundwater monitoring has continued.
concentration of                                                                  In 2008, additional monitoring wells in
PCE in the C-                                                                     the C-aquifer were installed as part of the
Aquifer                                                                           Phase 2 remedial action. Concentrations
                                                                                  have stabilized or decreased in all C-
                                                                                  aquifer monitoring wells except for
                                                                                  CDM-4C.
The extraction       1) Replace flow meters                          Early 2006   1) Flow meter replacement was
wells have been      2) Review flow data after extraction well                    completed June 2006.
operating at lower   rehabilitation activities. Semi-annual or                    2) Extraction well PW-1A underwent
flow rates than      annual well rehabilitation activities may                    rehabilitation in Jan 2006, as did PW-4A
designed. This       be necessary if these activities are found                   in Jul 2009.
leads to issues      to result in improved flow rates.
such as                                                                           3) Groundwater data after the
incomplete           3) Review groundwater elevation data                         agricultural wells decommissioning
containment of the   since the decommissioning of agricultural                    show improvement in hydraulic
plume and non-       wells.                                                       containment by the site’s extraction
functioning flow     4) The Phase 1 evaluation should assess                      system.
meters               the implications of the low extraction                       4) The Phase 1 Remedial Action
                     rates                                                        Evaluation report proposed installing
                                                                                  Upper B-aquifer extraction wells due to
                                                                                  dropping water levels in A-Aquifer and
                                                                                  vertical migration of COCs to B-Aquifer.


The following activities were conducted at the FMSL since the last Five-Year Review.

Phase 2 Groundwater Remedial Action implementation. The Phase 1 Groundwater Remedial
Action Evaluation Report (CDM, 2007) recommended proceeding with Phase 2 of the
groundwater remediation. Implementation of Phase 2 began in December 2007. This work
consisted primarily of the installation and operation of two B-aquifer extraction wells.

Installation of a LFG flare bypass at the packed tower. The original design of the packed tower
aerator required off gas to be conveyed to the LFG flare. This meant operation of the
groundwater treatment plant was dependent on continued LFG flare operation. This design
proved problematic in instances when the LFG flare underwent an unplanned shutdown or was
down for maintenance since it required the concurrent shutdown of the groundwater treatment
system. In an effort to maintain continuous operation of the groundwater treatment system, even



                                                                18
under conditions of LFG flare shutdown, the City proposed the installation of equipment to allow
the groundwater treatment system to operate under LFG flare bypass mode. The bypass was
conditionally approved by EPA in 2005.

Installed in February 2009, this bypass allows the packed tower to operate while the flare is
down for maintenance and/or repairs. The bypass is operated manually and allows for the
atmospheric release of emissions from the packed tower aerator. Anytime the City operates the
bypass, the EPA must be notified within 48 hours of flare shutdown. Any such shutdown
requires the plant shall not shut down 14 continuous days or 14 days in a given quarter, and that
the City comply with the San Joaquin Valley Air Pollution Control District (SJVAPCD) VOC
emissions limit of 2 lbs or less per day. The City subjected the flare bypass to a Health Risk
Analysis screening in 2007 to learn whether shutdowns would need to be reported to the
SJVAPCD in addition to the EPA. The amount of VOCs emitted daily during bypass mode is
0.13 lbs per day. The low amount of VOCs emitted led to a SJVAPCD determination that no
further analysis of the flare bypass was necessary and that the project does not pose a significant
risk to human health (San Joaquin Valley Air Pollution Control District Risk Management
Review, June 15th 2007). Therefore, the City is required to report to the EPA while in bypass
mode, but not to the SJVAPCD.

Additional recreation options at the Fresno Regional Sports Complex. In additional to the
softball and soccer fields, the Fresno City Parks and Recreation Department has permitted a third
party to operate a paintball facility in the area around the South Retention Basin. In February
2010, Park Lake was stocked with fish (trout) for recreational fishing.




                                                19
VI. Five-Year Review Process
Administrative Components
The team lead for the Fresno Municipal Sanitary Landfill Superfund Site Five-Year Review is Zi
Zi Searles, the EPA Remedial Project Manager (RPM). The review team included personnel
from the USACE, Seattle District, Rick Garrison, Marlowe Laubach and Jeff Powers. The
review schedule and major components included:

       •   Document Collection and Review;
       •   Data Assessment/Analysis;
       •   Site Inspection;
       •   Interviews and Community Notification and Involvement; and
       •   Five-Year Review Report Development and Review.


Community Involvement
       A public notice announcing the Five-Year Review of the FMSL was published in the
local English language paper, The Fresno Bee, on March 24, 2010, and the Spanish language
paper, Vida en el Valle, on March 25, 2010. The notice provided a brief background and other
relevant information on the Site, explained the reason for the Five-Year Review, and invited the
community to submit comments and questions regarding remedy performance via a toll-free
phone number or by contacting the RPM and Community Involvement Coordinator directly.
There were no comments received. Copies of these public notices are provided in Attachment 8.

Document Review
This Five-Year Review consisted of a review of relevant documents as summarized in
Attachment 1.

Data Review and Evaluation
Since preparation of the First Five-Year Review Report (EPA, 2005), groundwater conditions
and the nature of the groundwater RA at the FMSL Superfund Site have changed in several
ways. The primary changes to groundwater conditions include decline in the regional
groundwater table, migration of groundwater contamination into the B- and C-aquifers, and, in
response, initiating groundwater extraction from newly installed B-aquifer extraction wells.

Groundwater Elevations
The most noticeable phenomenon concerning the Site is the significant decline in saturated
conditions and/or hydraulic pressures within all aquifer zones, but particularly within the A-
aquifer. Since 2001, the A-zone aquifer water levels have dropped 18 or more feet. In 2001, the
saturated zone within the A-aquifer was, on average, about 25 feet thick; however, by October
2008 water levels had declined significantly throughout the A-aquifer. As a result of the decline
in water levels, four of the five A-aquifer extraction wells are no longer operational. The water
levels in the B-zone aquifer and the C-zone aquifer have also declined slightly. The direction of
flow to the southwest remained unaffected by changes to water levels in the B-aquifer and the C-
aquifer. However, the flow direction is the A-aquifer appears to have shifted to a more southerly


                                               20
direction during the most recent monitoring rounds. This is likely due to pumping from a single
extraction well in the A-aquifer located at the southern end of the FMSL site, extraction well
PW-3A2. Water level measurements indicate that the vertical groundwater flow is slightly
downward in all zones for most of the review period.

Hydraulic Control
Less groundwater is available to A-aquifer pumping due to declines in water table elevation and
groundwater extraction. With limited pumping, overall hydraulic control within the A-aquifer
has decreased; nevertheless, groundwater monitoring data indicate that groundwater quality in
the A-aquifer has not been negatively impacted as a result of the declining water levels (water
quality trends are discussed below).

An evaluation of B-Aquifer groundwater contour maps from 2008, 2009, and 2010 indicates
substantial capture in the B-zone. The results are especially dramatic when comparing contour
maps from 2009 and 2010. In 2009, PW-1B and PW-4B had achieved some degree of capture as
evidenced by the developing cones of depression. By 2010, the areal extent of these cones of
depression had expanded to twice the extent that was evident during 2009. At a minimum,
groundwater contour maps demonstrate that the B-aquifer extraction wells are successful at
capturing and containing a significant quantity of groundwater along and downgradient of the
western perimeter of the landfill. An evaluation of the performance of the Phase 2 Groundwater
Remedial Action, including an assessment of capture zones, is currently underway and will be
documented in the Phase 2 Groundwater Remedial Action Evaluation Report (scheduled for
submittal during Fall 2010).

Operations and Maintenance
Sedimentation and biofouling have occurred at several of the groundwater extraction wells. To
address problems of physical and biological clogging, the City initiated well rehabilitation efforts
in several wells, including PW-4A. By 2008, well PW-4A was rendered inoperable due to the
drilling of an adjacent extraction well PW-4B. The new well penetrating the B-Aquifer
contributed to a lowering of water levels and PW-4A’s pumping capacity. Following this
development additional rehabilitation was suspended since declining groundwater levels
rendered all A-aquifer extraction wells inoperable with the exception of the new well PW-3A2
(replacement well for PW-3A). PW-3A2 is the only A-aquifer wells delivering groundwater to
the treatment facility. Prior to the 2008 shutdown of the five original A-Aquifer extraction wells,
PW-1A, PW-2A, PW-3A (replaced by PW-3A2), PW-4A, and PW-5A showed evidence of
hydraulic capture along the downgradient perimeter of the landfill and for some distance beyond.

Water Quality
Table 5 provides a summary of VOC concentrations trends for groundwater monitoring data
through April 2010. The discussions below refer to Table 5.

A-Aquifer
Due to declining water levels, many of the A-aquifer background monitoring wells (located on
the eastern side of the landfill) have been dry since 2007 and so have not been sampled. Only 18
of the 32 A-Aquifer monitoring wells have recently been sampled. Dry A-Aquifer wells on the




                                                21
western side of the landfill include (from north to south) CDM-6A, PZ-2A, MW2, W5, W4, and
W6. Prior to 2007, all background monitoring wells have been non-detect for all VOCs.

As shown in Table 5, the majority of the A-aquifer monitoring wells have exhibited either stable
or decreasing VOC concentration trends over the last several monitoring rounds (12 of the 13 A-
aquifer monitoring wells). However, a number of the A-aquifer monitoring wells are dry. If
water levels continue to drop, it will be impossible for the A-aquifer extraction wells to continue
to function as intended since there will be little or no water to capture in the A-Aquifer.
However, even with declining water levels in the A-aquifer, groundwater monitoring data
indicated that groundwater quality in the A-aquifer has not decreased. When the wells were in
operation, monitoring data indicates they were effective at removing VOCs and obtaining
capture.

B-Aquifer
At the time of this report, only 1 year of monitoring data (from 4 quarterly sampling events) was
reviewed to assess the performance of the newly installed B-aquifer extraction wells PW-1B and
PW-4B. Of the 23 B-aquifer monitoring wells shown in Table 5, 16 of the wells exhibited stable
or decreasing VOC concentration trends. The seven wells that exhibited increasing VOC
concentration trends are all extraction zone monitoring wells.

Given the data available, it appears that both B-aquifer extraction wells PW-1B and PW-4 B are
achieving capture of contaminants. While additional data is needed to evaluate the long-term
effectiveness of these wells at removing the VOC mass from the plume, the data generated thus
far is promising. It is likely that PW-1B and PW-4B will continue to remove landfill-generated
VOCs and maintain hydraulic control. An evaluation of the performance of the Phase 2
Groundwater Remedial Action, including an assessment of groundwater quality trends, is
currently underway and will be documented in the Phase 2 Groundwater Remedial Action
Evaluation Report (scheduled for submittal during Fall 2010).

C-Aquifer
Of the eleven C-aquifer monitoring wells listed in Table 5, ten have exhibited stable or
decreasing VOC concentration trends through April 2010. The one C-aquifer monitoring well
exhibiting an increasing VOC concentration trend as of April 2010 is CDM-4C, a downgradient
monitoring well. Of the C-aquifer wells exhibiting stable or decreasing trends, several have had
VOC concentration increases since 2005; however, the most recent data demonstrates stable or
decreasing concentrations. As an example, well PZ-5C had increases in TCE (from non-detect
to 3 ppb (5-year maximum)) and PCE (from 6 to 16 ppb (5-year maximum)). Concentrations of
these constituents appear to have stabilized based on monitoring data through 2010. Monitoring
wells CDM-4C and CDM-8C, located on the western edge of Fresno Regional Sports Complex,
both have exhibited elevated concentrations of TCE, PCE, and 1,2-DCE since 2005. The
maximum concentration in both these wells in the past 5 years is TCE at 10 to 12 ppb.

VOC concentrations in CDM-4C continue to increase while CDM-8C concentrations have begun
to decline since mid-2007. It’s possible that CDM-8C VOCs are moving vertically into the B-
Aquifer due to the influence of extraction well PW-4B. The cause for increasing concentrations
in the well CDM-4C remains unknown and should be identified in future characterization efforts.



                                                22
Table 5. Summary of VOC Concentration Trend Data Through April 2010
      Monitoring Well Category             A-Aquifer                B-Aquifer               C-Aquifer                        Notes
Stable Concentration Wells
Extraction Zone                            CDM -2A                                                             all VOCs ND
                                           CDM-7A                                                              all VOCs ND
                                            PZ-5A                                                              all VOCs near ND
                                                                    DW-2C                                      all VOCs ND
                                                                   CDM-13B2                                    all VOCs < MCL
                                                                   CDM-15B                                     PCE: variable; 1,2 DCE: variable
                                                                     PZ-3B                                     PCE <1.0 µg/L (since 4/07)
                                                                     PZ-4B                                     Near ND for VOCs
                                                                   CDM-12B                                     Was increasing now stable
                                                                    DW-1C                                      Decrease since PW-4B start-up
                                                                    CDM-2B                                     all VOCs ND
                                                                                            CDM-2C             all VOCs ND
                                                                                            CDM-13C            all VOCs ND
                                                                                             PZ-4C             all VOCs ND
                                                                                            CDM-15C            PCE variable and <MCL
Downgradient                                CDM-4A                                                             all VOCs ND
                                            CDM-5A                                                             all VOCs ND
                                            CDM-8A                                                             all VOCs ND
                                                                    CDM-4B                                     Stable slight decrease in PCE
                                                                    CDM-8B                                     all VOCs: near ND
                                                                                             CDM-5C            all VOCs ND
Plume Boundary                             CDM-3A                                                              all VOCs ND
                                           CDM-16A                                                             all VOCs ND
                                           CDM-17A                                                             all VOCs ND
                                           CDM-18A                                                             all VOCs ND
                                                                    CDM-3B                                     all VOCs ND
                                                                    CDM-16B                                    PCE: 1 µg/L with trend down
                                                                    CDM-17B                                    all VOCs: ND
                                                                    CDM-18B                                    all VOCs ND
                                                                                            CDM-16C            all VOCs ND
                                                                                            CDM-18C            all VOCs ND since 04/07
Decreasing Concentration
Extraction Zone                            CDM-12A                                                             1,2 DCE: decreasing trend
                                           CDM-15A                                                             1,2 DCE: decrease since 2007
                                                                   CDM-15B2                                    PCE: significant decrease <MCL
                                                                                              PZ-5C            PCE stable at 8-10 µg/L; TCE
                                                                                                               stable at 2-4 µg/L.
Downgradient                                                        CDM-5B                                     all VOCs: sharp decreases in most
                                                                                                               recent monitoring round
                                                                                             CDM-8C            PCE stable at 8-10 µg/L; 1,2 DCE
                                                                                                               stable at 6-8 µg/L;
                                                                                                               TCE stable at 2-4 µg/L.
Plume Boundary                                                                              CDM-17C            PCE detections <2µg/L since 04/07
Increasing Concentration
Extraction Zone                            CDM-13A                                                             1,2 DCE: slight rebound last round
                                                                                                               following recent significant
                                                                                                               decrease
                                                                    CDM-13B                                    Recent slight increases in all
                                                                                                               >MCL
                                                                     DW-1B                                     1,2 DCE: Increase since PW-4B
                                                                                                               start-up, begins movement
                                                                                                               downward
                                                                     PZ-5B                                     1,2 DCE: recent significant
                                                                                                               increase
                                                                     PZ-5B2                                    PCE & TCE: variable with recent
                                                                                                               increases >MCL
                                                                     DW-2B                                     1,2 DCE: recent significant
                                                                                                               increase >MCL
                                                                     PZ-2B                                     PCE, TCE, 1,2 DCE: recent
                                                                                                               increases >MCL
                                                                    CDM-19B                                    PCE, TCE, 1,2 DCE, and VC:
                                                                                                               slight increases
Downgradient                                                                                 CDM-4C            PCE (>10 µg/L); TCE (>8 µg/L);
                                                                                                               1,2 DCE (>4 µg/L)
Plume Boundary                            No increase              No increase              No increase

                             Notes:
                                  1   Bold/Italic represents wells with above MCL concentrations
                                  2   Shading indicates wells with VOCs below MCLs that previously had above MCL concentrations
                                  3   Upgradient wells are all ND and are not shown in this table.
                                  4   Extraction wells PW-1A, PW-2A, and PW-5A have exhibited declining VOC concentrations for the period of
                                      record




                                                                      23
Groundwater Modeling
A recommendation from the first Five-Year Review was to use the groundwater model
developed for the site to predict how vertical migration of VOCs can be reduced, since
concentrations in the B- and C-aquifers were increasing during the last review period (2000-
2005). During the past five years groundwater modeling has been used for the following: 1)
delineate the extent of contamination, 2) assist with determining the optimal site for extraction
well location, and 3) estimate required flow rates, evaluate plume capture, vertical flow and
contaminant migration. Since extraction from the A-aquifer had only a slight influence on B-
aquifer contaminant capture, modeling efforts were used to support the installation of B-aquifer
extraction wells to better capture the plume. There are plans to update the model as part of the
Phase 2 Groundwater Remedial Action Evaluation Report (scheduled for submittal during Fall
2010) to include updated physical parameters such as decreased groundwater levels in the
respective aquifers.

Conclusions
This comprehensive review of the data shows that overall the three operating groundwater
extraction wells have achieved a significant extent of plume capture along the downgradient
edge of the FMSL, thus preventing the downgradient expansion of the VOC plume. Plume
boundary wells screened in the A-, B-, and C-aquifers (CDM-16, CDM-17, CDM-18) show
stable (including non-detect) or decreasing concentrations of VOCs for the period of 2005-2010.
These results suggest the plume is stable and not migrating downgradient. A formal analysis of
the performance of the new extraction well network, including B-zone extraction wells, will be
available in Fall 2010 in the Phase 2 Groundwater Remedial Action Evaluation Report (CDM).


Institutional Controls
The OU-2 ROD selected institutional controls as part of the remedy:

       Institutional controls anticipated at the Fresno Sanitary Landfill will consist of restricting
       the installation of water supply wells in the impacted aquifer and limiting site access.
       Controls on the use of the groundwater pumped from the contaminated aquifer by
       existing wells will be considered. These institutional controls can be enforced by the
       County governmental agency or by zoning and deed restrictions.

These selected ICs have been only partially implemented. The City and Fresno County have
developed a program that is intended to limit installation of wells in certain areas. This program
establishes two zones: a well prohibition zone and a well assessment zone. When a well permit
application is submitted to Fresno County, which is the well permitting authority, the County
determines whether the proposed well location is in one of these two zones. If the applicant
proposes to install a well in the prohibition zone, the County will deny the permit. If the
proposed well will be located in the well assessment zone, Fresno County coordinates with the
City of Fresno for further assessment. After evaluating the well design, including well depth, the
City of Fresno specifies any necessary design modifications. This program is currently working
well.




                                                 24
EPA worked with the City of Fresno and the California Department of Toxic Substance Control
(DTSC) in an attempt to negotiate and record an environmental restriction covenant. In the
process of those negotiations, the parties decided to pursue two separate covenants: one for the
landfill property and the other for the property surrounding the landfill, including the south
detention basin and the sports facility. To date, the parties have not been able to resolve issues
regarding the City’s future plan for the properties, and both covenants are still in draft form.
Additional discussions between the City of Fresno, EPA, and DTSC regarding future land use
needs to occur before finalizing the covenants. The planned completion date for finalizing,
executing, and recording land use covenants is December 2012.

Site Inspection
The site inspection was conducted on March 11, 2010 by Zi Zi Searles and Fred Schauffler of
EPA Region 9, and attended by representatives from USACE, the City of Fresno, CDM, the
California Department of Toxic Substances Control and the Regional Water Quality Control
Board. An overview of the site was provided by Mr. John (Yash) Nyzkyk, CDM, and Mr.
George Slater, City of Fresno.

A detailed description of the site visit with photos can be found in Attachment 3. Based on the
site visit, all components of the remedial action appear to be in good condition and operating as
intended.

Interviews
Interviews were conducted by Ms. Zi Zi Searles, EPA Region 9, Ms. Marlowe Laubach, USACE
and Mr. Rick Garrison, USACE. The interview records are presented in Attachment 5.

The interviews revealed theft and vandalism has occurred at the site. Approximately six months
ago, the treatment plant office was broken into and several thousand dollars of sampling
equipment and the onsite manager’s laptop were stolen, along with backup gas monitoring data.
Also, the gas extraction wellheads and sprinkler heads on the landfill have occasionally been
damaged by vandals.

To prevent future break-ins of the treatment plant office, additional security measures should be
implemented to possibly include cameras or other 24-hour surveillance. Also to prevent loss of
data, an off-site repository for back-up data should be provided.




                                                25
VII. Technical Assessment
Question A: Is the remedy functioning as intended by the decision documents?

Yes, the remedies associated with OU-1 and OU-2 are functioning as intended.


A.1 Remedial Action Performance and Monitoring Results

The objective of OU-1 as intended by the 1993 ROD is to address onsite control of contaminants
by confinement of the trash prism and extraction and treatment of landfill gas, landfill gas
condensate, and leachate. These elements of control have been achieved. Although subsidence of
the vegetative cover can be visually observed in the eastern portion of the landfill, there is no
indication that the cap is compromised. The City of Fresno will begin regrading and slope
restoration on the northeastern side of the landfill sometime in late 2010.

The objective of OU-2 as intended by the 1996 ROD is to restore groundwater to beneficial use
in a timely and cost-effective manner. The phased approach to the remedy was adopted to
optimize effectiveness. Phase 1 of this remedy was completed in 2001-2002 with the goal of
containing the groundwater plume around the landfill. This objective was achieved for
contaminants in the A-aquifer.

In 2008, the Phase 2 RA was implemented with a goal of containing the groundwater plume. As
part of the Phase 1 RA, three agricultural wells were decommissioned to prevent further lateral
migration of contaminants into the B-aquifer. The 2008 installation and operation of B-aquifer
extraction wells PW-1B and PW-4B appear to be effective at containing, capturing, and
ultimately reducing contamination in the B-aquifer based on preliminary data. Regional declines
in groundwater elevations in all aquifer zones, believed to be caused by both lower than normal
precipitation since 2006 and increased agricultural use, are likely contributing factors to the
downward vertical migration of contaminants from the A- to B-aquifer and from the B- to C-
aquifer. Since three of the five original A-aquifer extraction wells have been rendered inoperable
due to water levels insufficient to maintain extraction, hydraulic containment of contaminants
now relies upon the two Phase 2 (B-aquifer) extraction wells and the one Phase 1 extraction well
that remains in operation. Groundwater continues to be present above the pump in extraction
well PW-3A2, and above the bottom of the well screens for 14 of 32 A-Aquifer monitoring
wells. As long as these wells contain groundwater, monitoring and reporting will continue in
order to understand contaminant distribution and capture in the A-aquifer.

Site groundwater has not yet achieved the OU-2 Phase 3 objective of achieving cleanup
standards that allow for beneficial use. Recent monitoring data shows that PCE, TCE, 1, 2-DCE,
and vinyl chloride were all detected in the A-aquifer above their respective MCLs within 300
feet of the downgradient western edge of the landfill. PCE concentrations in the A-aquifer are
shown in Figure 6, and total VOC concentrations are shown in Figure 9. Other contaminants
detected above MCLs near the western edge include 1,1-DCA, 1,2-DCA, and 1,4-DCB. PCE
concentrations in the B-aquifer are shown in Figure 7, and total VOC concentrations are shown


                                                26
in Figure 10. In the C-aquifer, only PCE and 1, 2-DCE were detected above their respective
MCLs. Figures 8 and 11 show PCE and total VOCs in the C-aquifer, respectively. Overall, VOC
mass within site groundwater has been significantly reduced as a result of OU-1 capping and
OU-2 Phase 1 and 2 extraction and treatment actions. The extent of VOCs in the A- and B-
aquifers appears to have markedly decreased since the last Five-Year Review. Until water levels
made A-aquifer extraction wells inoperable, well data indicated the remedy was succeeding in
removing COCs.


A.2 System Operations and Maintenance

For OU-1, operations, and maintenance components include landfill gas control, surface water
management system, and landfill final cover systems. Operations related to the landfill include
adjustment of individual flow rates from the gas extraction wells. The City has initiated a
periodic inspection program of the landfill cover and drainage systems in order to identify areas
of subsidence or damage to landfill control system elements. Additionally, burrowing animal
management activities serve to protect the landfill cover.

For OU-2, operations and maintenance components include groundwater treatment plant
operations and the plant’s performance monitoring program for the combined Phase 1 and 2
system components. Plant operations entail adjustment of individual flow rates from the
extraction wells, adjustment of operating parameters for the groundwater treatment plant (air:
water ratio, chemical feed rates, checking chemical feed system levels, etc.), and responding to
alarm conditions that may occur for the plant. Maintenance activities include normal servicing of
motors and pumps, checking and cleaning groundwater extraction well flow meters and valves,
assessing need for extraction well cleaning and redevelopment, and assessing conditions of the
treatment plant’s tower aerator packing. Since the execution of OU-2 Phase 2, the performance
monitoring program, performed quarterly, includes sampling of groundwater treatment plant
influent and effluent to verify that treatment goals are being met prior to surface discharge of
treated water. There were no exceedances of discharge limits since the last Five-Year-Review.
Treatment plant system monitoring results are covered in the annual performance monitoring
program reports.


A.3 Costs of System Operations, Maintenance, and Monitoring

Costs for OU-1 system operations, maintenance, and monitoring were not available.

Costs for OU-2 system operations, maintenance, and monitoring increased due to Phase 2
implementation when compared with historic Phase 1 costs; however, overall costs do not appear
excessive. Capital costs for the OU-2 Phase 2 remedial action totaled $1.5 million, and included
the installation of new extraction and monitoring wells, system integration to the existing system,
engineering design and construction oversight, and project administration. Operations,
maintenance, and monitoring costs for the OU-2 Phase 2 remedial action totaled $0.4 million,
and included direct labor, direct material costs (equipment replacement/repair, chemicals),
power, groundwater analytical costs, and assistance with monitoring, reporting, and operations.



                                                27
                                                                                                               North

                                                                                                         0              1000                                          CDM7A
                                                                                                                                                                      NS/ND
                                                                                                                feet
                                                                                                                                    Jensen Ave.
                                                                                                                                                                  CDM6A
                                                                                                                                                                  NS/NS
                                                                                                                                                                                                      UW1A
                                                                                                                                                                          CDM15A                      NS/NS
                                                                                                                                                                          3.3/2.8
                                                                                                                                                                  1
                                                                                                                                                                          MW1 NS/NS
                                                                                                                                                                          (Upper part of CDM-15A interval)
                                                                                                                                                              1
                                                                                                                                                                          W1R
                                                                                                                                                                          NS/NS
                                                                                                                                     CDM5A             PZ2A
                                                                                                                                                      NS/NS               PW1A
                                                                                                                                     NS/ND
                                                                                                                                                                      MW2
                                                                                                                                                 Park                 NS/NS
                                                                                                                                             Boundary
                                                                                                                                                                      PW2A                                 CDM1A
                                                                                                                         CDM18A                                                                             NS/NS
                                                                                                                                                                          W5
                                                                                                                          NS/ND                                           NS/NS
                                                                                                                                     CDM8A             MW3
                                                                                                                                     NS/ND            NS/NS             Approx. Limit
                                                                                                                                                                          of Refuse
                                                                                            Marks Ave.




                                                                                                                                                       PW5A           W4
                                                                                                                                                                      NS/NS
                                                                                                                                             CDM4A                     CDM13A
                                                                                                                                             ND/ND      5
                                                                                                                                                                       7.0/1.6
                                                                                                         CDM17A                                    CDM12A             PW4B
                                                                                                          NS/ND                                     2.3/2.8
                                                                                                                                                                  1
                                                                                                                                                                              MW4
                                                                                                                                                          PZ5A                NS/NS
                                                                                                                                                         NS/1.6       1
JJT




                                                                                                                                                        PW3A2                    W6
                                                                                                                                                                              NS/NS
07/29/09




                                                                                                                       North Ave.
                                                                                                                                    CDM3A
                                                                                                                                             Hughes




                                                                                                                                    NS/ND
W:\REPORTS\Fresno\Annual Monitoring Report_Jul09\Graphics\3-4a_Tetrachloroethene.ai




                                                                                                                                              Ave.




                                                                                                                                                                                          West Ave.




                                                                                                                                                                           CDM2A
                                                                                                                                                  CDM16A                   NS/ND
                                                                                                                                                  NS/ND




                                                                                      Legend                                                                              Notes:
                                                                                            Monitoring Well                                                               Concentrations in μg/l
                                                                                            Oct. 2008 Concentration Contour (Dashed Where Inferred)                       NS = Not Sampled
                                                                                            Apr. 2009 Concentration Contour (Dashed Where Inferred)                       ND = Not Detected Above Practical
                                                                                                Extraction Well (VOC concentrations not posted)                                Quantitation Limit
                                                                                                                                                                          NS/11.9 = Oct. 2008 Data/Apr. 2009 Data
                                                                                                300 feet downgradient of landfill

                                                                                                             Tetrachloroethene in A Aquifer Groundwater                                                 Figure 6
                                                                                           Fresno Sanitary Landfill - Semiannual Groundwater Monitoring Program
                                                                                                                                        Fresno, CA                                                      Camp Dresser & McKee
                                                                                                               North

                                                                                                         0             1000

                                                                                                                feet
                                                                                                                                  Jensen Ave.
                                                                                                                                                CDM15B2
                                                                                                                                                   NS/8.1
                                                                                                                                                  CDM15B
                                                                                                                                                     13/13
                                                                                                                                                                        {   5
                                                                                                                                                                                                                             UW1B
                                                                                                                                                                                                                             NS/NS
                                                                                                                                                                           5                                                 UW1C
                                                                                                                                                                                                                             NS/ND
                                                                                                                                                                                         PZ3B
                                                                                                                                                                            20           0.96/0.71
                                                                                                                                                                                            PW1B DW2B
                                                                                                                               CDM 5B                                  20
                                                                                                                               38/33
                                                                                                                                                                                     PZ2B
                                                                                                                                                                                     NS/10
                                                                                                                                                                                                    }
                                                                                                                                                                                                   NS/6.9
                                                                                                                                                                                                   DW2C
                                                                                                                                                                                                   NS/ND
                                                                                                                                                                                           PZ4B
                                                                                                                                                     20                                    1.0/ND
                                                                                                                                                20       Park
                                                                                                                                                     Boundary
                                                                                                                  CDM18B                              5
                                                                                                                   ND/ND                                                                       Approx. Limit
                                                                                                                                  5                                                             of Refuse
                                                                                                                                                                                                                                         CDM1B
                                                                                                                                                           CDM8B                                                                         NS/ND
                                                                                                                                                           NS/ND
                                                                                                                                                                                               CDM13B
                                                                                                                                                               5
                                                                                                                                                                                           {   6.5/7.2
                                                                                            Marks Ave.




                                                                                                                                                                   5                           CDM13B2
                                                                                                                                                          20                                   NS/2.8
                                                                                                                                      50
                                                                                                                                                                                20               DW1B
                                                                                                               CDM17B
                                                                                                               0.56/ND
                                                                                                                                      CDM4B
                                                                                                                                       62/60
                                                                                                                                           50
                                                                                                                                                                   CDM12B
                                                                                                                                                                     27/25
                                                                                                                                                                                               { 33/36
                                                                                                                                                                                                 DW1C
                                                                                                                                                                                                 29/1.5
                                                                                                                                                                                                                            PZ5B2


                                                                                                                                CDM3B
                                                                                                                                                     20
                                                                                                                                                      20
                                                                                                                                                                                      50
                                                                                                                                                                                               PW4B
                                                                                                                                                                                                                     {      2/13
                                                                                                                                                                                                                            PZ5B
                                                                                                                                                                                                                            75/91
JJT




                                                                                                                                 NS/ND                                               50
                                                                                                                  North Ave.
07/30/09
W:\REPORTS\Fresno\Annual Monitoring Report_Jul09\Graphics\3-4b_Tetrachloroethene.ai




                                                                                                                                                                                                                West Ave.
                                                                                                                                           Hughes




                                                                                                                                                                            5
                                                                                                                                            Ave.




                                                                                                                                                                       5
                                                                                                                                                                                                        CDM2B
                                                                                                                                                          CDM16B                                        NS/ND
                                                                                                                                                          2.0/1.5

                                                                                      Legend
                                                                                            Monitoring Well
                                                                                            Oct. 2008 Concentration Contour                           Notes:
                                                                                            (Dashed Where Inferred)                                   Concentrations in μg/l
                                                                                                Apr. 2009 Concentration Contour                       NS = Not Sampled
                                                                                                (Dashed Where Inferred)                               ND = Not Detected Above Practical Quantitation Limit
                                                                                                Extraction Well (VOC concentrations                   NS/11.9 = Oct. 2008 Data/Apr. 2009 Data
                                                                                                not posted)                                           B2 Wells Screened in Lower Portion of B Aquifer. Concentrations
                                                                                                300 feet downgradient of landfill                          Not Used in Producing Contours.

                                                                                                             Tetrachloroethene in B Aquifer Groundwater                                                                         Figure 7
                                                                                           Fresno Sanitary Landfill - Semianual Groundwater Monitoring Program
                                                                                                                                           Fresno, CA                                                                           Camp Dresser & McKee
                                                                                                               North

                                                                                                         0              1000                                         CDM7C
                                                                                                                                                                     NS/ND
                                                                                                               feet


                                                                                                                                    Jensen Ave.




                                                                                                                                                                  CDM15C
                                                                                                                                                                  NS/ND


                                                                                                                                     CDM5C
                                                                                                                                      NS/ND
                                                                                                                                                                    PZ4C
                                                                                                                                                   Park
                                                                                                                                               Boundary             NS/ND


                                                                                                                               CDM18C                                 Approx. Limit                    CDM1C
                                                                                                                               NS/ND                                   of Refuse                        NS/ND
                                                                                                                                                        5

                                                                                                                                     5         CDM8C
                                                                                            Marks Ave.




                                                                                                                                               12/9.7
                                                                                                                                                                  CDM13C
                                                                                                                                                                  NS/ND

                                                                                                              CDM17C                       5                           CDM13C interval
                                                                                                                                                                       is below CDM4C
                                                                                                              1.3/1.2                     5    CDM4C                   interval
                                                                                                                                               4.6/5.4
                                                                                                                                                                   PZ5C
                                                                                                                                                                   11/11
JJT
07/10/09




                                                                                                                                                            5
                                                                                                                       North Ave.
W:\REPORTS\Fresno\Annual Monitoring Report_Jul09\Graphics\3-4c_Tetrachloroethene.ai




                                                                                                                                               Hughes
                                                                                                                                                Ave.




                                                                                                                                                                                         West Ave.




                                                                                                                                                                             CDM2C
                                                                                                                                                                             NS/ND
                                                                                                                                                  CDM16C
                                                                                                                                                  NS/ND

                                                                                      Legend
                                                                                            Monitoring Well                                         Notes:
                                                                                            Oct. 2008 Concentration Contour                         Concentrations in μg/l
                                                                                            (Dashed Where Inferred)
                                                                                                                                                    NS = Not Sampled
                                                                                               Apr. 2009 Concentration Contour                      ND = Not Detected Above Practical Quantitation Limit
                                                                                               (Dashed Where Inferred)
                                                                                                                                                    NS/11.9 = Oct. 2008 Data/Apr. 2009 Data
                                                                                                300 feet downgradient of landfill

                                                                                                             Tetrachloroethene in C Aquifer Groundwater                                              Figure 8
                                                                                              Fresno Sanitary Landfill - Semianual Groundwater Monitoring Program
                                                                                                                                         Fresno, CA                                                  Camp Dresser & McKee
                                                                                                       North

                                                                                                   0            1000
                                                                                                                                                                     CDM7A
                                                                                                        feet                                                         NS/ND


                                                                                                                             Jensen Ave.
                                                                                                                                               CDM6A
                                                                                                                                                NS/NS
                                                                                                                                                                                                       UW1A
                                                                                                                                   CDM15A                                                              NS/NS
                                                                                                                                   92.7/79.7                  50
                                                                                                                                                                            MW1
                                                                                                                                                    20
                                                                                                                                                          50
                                                                                                                                                                            NS/NS
                                                                                                                                                            5               W1R
                                                                                                                                                    5
                                                                                                                                                                            NS/NS
                                                                                                                               CDM5A               PZ2A             PW1A
                                                                                                                                NS/ND             NS/NS
                                                                                                                                                                         MW2
                                                                                                                                                                         NS/NS

                                                                                                                                                                    PW2A
                                                                                                                       CDM18A                                                                              CDM1A
                                                                                                                                                                      W5
                                                                                                                       NS/ND                                          NS/NS                                 NS/NS

                                                                                                                             Park          CDM8A                      Approx. Limit
                                                                                                                         Boundary          NS/ND                        of Refuse
                                                                                                                                                     PW5A
                                                                                      Marks Ave.




                                                                                                                                                                     W4
                                                                                                                                                                     NS/NS
                                                                                                                                                         50                   CDM13A
                                                                                                       CDM17A                 CDM4A                           100
                                                                                                                                                                    200       221.5/52.1
                                                                                                       NS/ND                   NS/ND                                 PW4B
                                                                                                                                        CDM12A               50
                                                                                                                                                                     PZ5A
                                                                                                                                        60.8/81.4              10    NS/8.6
                                                                                                                                                         5
                                                                                                                                                                            MW4
JJT




                                                                                                                                                                     5
                                                                                                                                                                            NS/NS
07/29/09




                                                                                                                                                                     PW3A2   W6
                                                                                                               North Ave.                                                  NS/NS
                                                                                                                             CDM3A
W:\REPORTS\Fresno\Annual Monitoring Report_Jul09\Graphics\3-5a_VOC A Aquifer.ai




                                                                                                                                         Hughes




                                                                                                                             NS/ND
                                                                                                                                          Ave.




                                                                                                                                                                                           West Ave.




                                                                                                                                                                                 CDM2A
                                                                                                                                                                                 NS/ND
                                                                                                                                           CDM16A
                                                                                                                                           NS/ND


                                                                                  Legend
                                                                                                                                                                          Notes:
                                                                                        Monitoring Well                                                                   Concentrations in μg/l
                                                                                        Oct. 2008 Concentration Contour (Dashed Where Inferred)                           NS = Not Sampled
                                                                                        Apr. 2009 Concentration Contour (Dashed Where Inferred)                           ND = Not Detected Above Practical
                                                                                               Extraction Well (VOC concentrations not posted)                                 Quantitation Limit
                                                                                               300 feet downgradient of landfill                                          NS/11.9 = Oct. 2008 Data/Apr. 2009 Data

                                                                                                       Total VOCs in A Aquifer Groundwater                                                               Figure 9
                                                                                     Fresno Sanitary Landfill - Semiannual Groundwater Monitoring Program
                                                                                                                                   Fresno, CA                                                            Camp Dresser & McKee
                                                                                                        North

                                                                                                    0                 1000

                                                                                                         feet
                                                                                                                                    Jensen Ave.

                                                                                                                                          CDM15B2
                                                                                                                                          NS/15.1
                                                                                                                                          CDM15B
                                                                                                                                          58.2/38.8
                                                                                                                                                           {                                                         UW1B
                                                                                                                                                                                                                     NS/NS
                                                                                                                                                                                                                     UW1C
                                                                                                                                                                                 PZ3B                                NS/ND
                                                                                                                                                                50
                                                                                                                                                                                 0.96/0.7
                                                                                                                               CDM 5B                                              PW1B DW2B
                                                                                                                             98.0/102.1

                                                                                                                                           20
                                                                                                                                                50
                                                                                                                                                              PZ2B
                                                                                                                                                            NS/22.1
                                                                                                                                                                                        NS/58
                                                                                                                                                                                        DW2C
                                                                                                                                                                                        NS/ND
                                                                                                                                                                                             }
                                                                                                                                                5                                 PZ4B
                                                                                                                                                      20                   5      6.0/0.62
                                                                                                                                                        Park
                                                                                                                                           5        Boundary
                                                                                                           CDM18B                                                                     Approx. Limit                     CDM1B
                                                                                                            ND/ND                                                                      of Refuse                         NS/ND
                                                                                                                                                     CDM8B                            CDM13B
                                                                                                                                                     NS/ND
                                                                                                                                                                            5
                                                                                                                                                                                  }   101.9/91
                                                                                       Marks Ave.




                                                                                                                                                                          5 20        CDM13B2
                                                                                                                                                                     20               NS/35.6
                                                                                                                                                                50
                                                                                                                                                               100                     DW1B

                                                                                                    CDM17B
                                                                                                    0.56/ND
                                                                                                                20
                                                                                                                      50
                                                                                                                             100                        CDM12B
                                                                                                                                                               200

                                                                                                                                                       122.1/34.1
                                                                                                                                                                          200
                                                                                                                                                                                      {314.4/310.5
                                                                                                                                                                                       DW1C
                                                                                                                                                                                       13.4/2.2
                                                                                                                                                                                      PW4B
                                                                                                                5

                                                                                                                   CDM4B                                                  200
                                                                                                                                                                                          PZ5B2
                                                                                                                197.2/164.0
                                                                                                                                     CDM3B                            200
                                                                                                                                                                                      {   29.4/32.6
                                                                                                                                                                                          PZ5B
JJT




                                                                                                                                     NS/ND                      100
                                                                                                                     North Ave.                                                           246.2/285.3
07/30/09




                                                                                                                                                      50       100
                                                                                                                                                               50
                                                                                                                                                                                                         West Ave.
W:\REPORTS\Fresno\Annual Monitoring Report_Jul09\Graphics\3-5b_VOC B Aquifer.ai




                                                                                                                                   CDM16B              20                                        CDM2B
                                                                                                                                   13.6/11.8                                                     NS/ND
                                                                                                                                                       5

                                                                                  Legend                                       Hughes
                                                                                        Monitoring Well                         Ave.
                                                                                        Oct. 2008 Concentration Contour              Notes:
                                                                                        (Dashed Where Inferred)                      Concentrations in μg/l
                                                                                           Apr. 2009 Concentration Contour           NS = Not Sampled
                                                                                           (Dashed Where Inferred)                   ND = Not Detected Above Practical Quantitation Limit
                                                                                           Extraction Well (VOC concentrations       NS/11.9 = Oct. 2008 Data/Apr. 2009 Data
                                                                                           not posted)                               B2 Wells Screened in Lower Portion of B Aquifer. Concentrations
                                                                                           300 feet downgradient of landfill              Not Used in Producing Contours.

                                                                                                                                                                                                                       Figure 10
                                                                                                         Total VOCs in B Aquifer Groundwater
                                                                                           Fresno Sanitary Landfill - Semianual Groundwater Monitoring Program
                                                                                                                                           Fresno, CA                                                                  Camp Dresser & McKee
                                                                                                          North

                                                                                                     0             1000                                            CDM7C
                                                                                                                                                                   NS/ND
                                                                                                           feet


                                                                                                                               Jensen Ave.




                                                                                                                                                               CDM15C
                                                                                                                                                               NS/1.6



                                                                                                                                             CDM5C
                                                                                                                                             NS/ND
                                                                                                                                                                  PZ4C
                                                                                                                                             Park
                                                                                                                                         Boundary                 NS/ND


                                                                                                                CDM18C                                              Approx. Limit                    CDM1C
                                                                                                                 NS/ND                                               of Refuse                        NS/ND

                                                                                                                                         CDM8C
                                                                                                                                         36.3/34.7
                                                                                        Marks Ave.




                                                                                                                  5                                  5         CDM13C
                                                                                                                                                               NS/2.5
                                                                                                                                                                     CDM13C interval
                                                                                                                                                         20          is below CDM4C
                                                                                                      CDM17C                    20       CDM4C            20         interval
                                                                                                      3.6/3.0                            23.9/51.1
                                                                                                                                                                 PZ5C
                                                                                                                                     5        20                 30.3/33.6
JJT




                                                                                                                                          5
07/30/09




                                                                                                                  North Ave.
W:\REPORTS\Fresno\Annual Monitoring Report_Jul09\Graphics\3-5c_VOC C Aquifer.ai




                                                                                                                                         Hughes
                                                                                                                                          Ave.




                                                                                                                                                                                       West Ave.




                                                                                                                                                                             CDM2C
                                                                                                                                             CDM16C                          NS/ND
                                                                                                                                             NS/ND

                                                                                  Legend
                                                                                        Monitoring Well                                                  Notes:
                                                                                        Oct. 2008 Concentration Contour                                  Concentrations in μg/l
                                                                                        (Dashed Where Inferred)
                                                                                                                                                         NS = Not Sampled
                                                                                            Apr. 2009 Concentration Contour                              ND = Not Detected Above Practical Quantitation Limit
                                                                                            (Dashed Where Inferred)
                                                                                                                                                         NS/11.9 = Oct. 2008 Data/Apr. 2009 Data
                                                                                           300 feet downgradient of landfill

                                                                                                                                                                                                   Figure 11
                                                                                                           Total VOCs in C Aquifer Groundwater
                                                                                                     Fresno Sanitary Landfill - Annual Groundwater Monitoring Program
                                                                                                                                     Fresno, CA                                                    Camp Dresser & McKee
A.4 Opportunities for Optimization

At this time, there are no known opportunities for optimization of either OU-1 or OU-2 remedial
systems. An assessment of the effectiveness of the OU-2 Phase 2 system will be performed and
documented in a report scheduled for the Fall 2010 timeframe. More operational and monitoring
data will have been collected by that time to further evaluate the effectiveness of the recently
modified site groundwater extraction and treatment program. The operator continually evaluates
the monitoring program for optimization opportunities. Any suggestions to optimize the
monitoring program are presented annually as part of the formal monitoring report.


A.5 Early Indicators of Potential Remedy Problems

As discussed previously, landfill subsidence issues pertinent to OU-1 have been observed along
the eastern portion of the landfill. This deficiency will be repaired and inspections will be
performed to determine whether landfill conditions have stabilized in this area. Adjustments to
the remedy should continue to be evaluated in the event regional groundwater levels continue to
decline.


Question B: Are the exposure assumptions, toxicity data, cleanup levels, and remedial action
objectives (RAOs) used at the time of the remedy still valid?

Answer: Yes, the RAOs used at the time of the ROD are still valid. Clean-up levels (MCLs) for
trans-1, 2-dichloroethene and chloroform have changed from 100 µg/L to 10 µg/L and 100 µg/L
to 80 µg/L, respectively, but these changes do not affect protectiveness. New and/or updated
exposure scenarios are evaluated periodically to address potential or actual changes to site use.
Exposure scenarios were last updated and evaluated in 2009 in the Addendum to Supplemental
Analysis of Risk, Fresno Sanitary Landfill (CDM, 2009).

B.1 Changes in Standards and To-Be-Considered Criteria

No significant changes in the standards have occurred since the last five-year report. Several
California statutes have changed name since the RODs were issued in the 90’s but the intent of
all ARARs listed in the RODs is still followed in landfill operations and maintenance activities.
The State MCL for trans-1,2-dichloroethene and the federal MCL for chloroform have changed
since the ROD; however, these changes to MCLs do not affect the protectiveness of the remedy.
The current MCL for trans-1,2-dichloroethene is less than the EPA Regional Screening Level
(RSL). In addition, these two contaminants are present at low concentrations at the Site and are
not drivers for determining the scope of the groundwater remedy. Table 6 below presents a
comparison of ROD MCLs to current federal and State MCLs. Attachment 2 provides an
analysis of ARARs. An ESD or future Memo to File is needed to update the ROD to reflect the
proper names of applicable regulations and update recent changes to MCLs.




                                               28
Table 6. MCL Comparison
        Contaminant               ROD MCLs             Current Federal       Current State MCLs
                                    (µg/L)              MCLs (µg/L)                (µg/L)
Trichloroethylene                      5                       5                       5
Tetrachloroethylene                    5                       5                       5
Vinyl chloride                        0.5                      2                     0.5
1,1-dichlorothylene                    6                       7                       6
1,2-dichloroethane                    0.5                      5                     0.5
trans-1,2-dichloroethene             100                     100                      10
cis-1,2-dichloroethene                 6                      70                       6
1,2-dichloropropane                    5                       5                       5
1,2-dichlorobenzene                  600                     600                     600
1,4-dichlorobenzene                    5                      75                       5
Benzene                                1                       5                       1
Chlorobenzene                         70                      70                      70
Chloroform                           100                      80                      --
1,1-dichloroethane                     5                      --                       5
Trichlorofluoromethane               150                      --                     150
Toluene                              150                    1000                     150


B.2 Changes in Exposure Pathways, Toxicity, and Other Contaminant Characteristics

An Analysis of Risk (AOR) was prepared as part of the Phase 1 Groundwater Remedial Action
Evaluation report (CDM 2007) to supplement the formal risk assessment prepared for the FMSL
site prior to the initiation of the remedial action. An Addendum to the AOR was prepared in
2009. The AOR and Supplemental AOR assessed the risk to recreational users of the park
facilities, construction workers, off-site residents, and maintenance workers through the drinking
water, showering, vapor intrusion, ambient air, and direct contact exposure pathways. The
assessment concluded that risks are within or below EPA’s acceptable risk range.

An ecological risk contaminant pathway analysis was performed in 2006. The analysis consisted
of a screening level evaluation of potential exposure pathways related to landfill waste materials,
leachate, and gas to determine whether significant ecological risk is present. Potential exposure
pathways were indentified for terrestrial and ecological receptors. These pathways included
waste materials from landfill, contaminants in surface water, and LFG in the vadose zone. The
analysis determined that none of the potential receptors were at risk through the identified
pathways.

A complete discussion of the Risk Assessments is included in Attachment 9.




                                                29
B.3 Changes in Land Use

The sports facility adjacent to the landfill and groundwater treatment facility has remained the
same since the last Five-Year Review report with the exception of a new paintball area in the
South Drainage Basin and the trout stocking in Park Lake that began in February 2010. Future
land use of the landfill and the surrounding park/sports facility has not been determined by the
City of Fresno. Future land use may affect the protectiveness of the remedy.


B.4 Remedial Action Objectives

The remedial action objectives in the RODs for both OUs are still valid and address all potential
pathways of exposure associated with current and future land use in the area.


Question C: Has any other information come to light that could call into question the
protectiveness of the remedy?
Answer: No additional information has come forward that questions the protectiveness of the
remedy.

Technical Assessment Summary
OU-1: Overall, the landfill closure remedy is functioning as intended. The remedy includes the
landfill cover, the landfill gas treatment system, and gas condensate collection system.
Subsidence was observed on the east side of the landfill. The City of Fresno anticipates the repair
of the subsidence area to begin in late 2010. The landfill gas collection and treatment systems are
currently operational and functioning.

OU-2: Overall, the groundwater remedy (OU-2) is functioning as intended by the decision
document. The remedy was to be implemented in a phased approach, first addressing landfill
perimeter containment (Phase 1), followed by overall plume containment (Phase 2) and then
complete aquifer restoration (Phase 3). Thus far, Phases 1 and 2 have been implemented through
extraction and treatment of A- and B-aquifer groundwater. If VOCs are detected in a residential
well, the frequency of monitoring will be increased to ensure residents are protected from
exposure to groundwater with contaminants approaching MCLs. Potential exposures to
recreational users of the park facilities adjacent to the landfill were addressed in the Phase 1
Groundwater Remedial Action Evaluation report (CDM 2007) and Addendum to Supplemental
Analysis of Risk, Fresno Sanitary Landfill (CDM, 2009). Risks to such users were found to be
well within EPA’s acceptable risk range.




                                                30
VIII. Issues

Table 7. Issues of the 2010 Five-Year Review
                                                                                Affects Protectiveness?
                                                                                        (Y or N)
                                  Issue
                                                                               Current           Future

The institutional controls selected in the ROD have not yet been
                                                                                    N              Y
implemented.




IX. Recommendations and Follow-up Actions

Table 8. Recommended Follow-Up Actions
                                                                                                 Planned
                                       Recommendations/               Party         Oversight
             Issue                                                                              Completion
                                       Follow-Up Actions           Responsible       Agency
                                                                                                   Date
The institutional controls        Finalize, execute, and record
selected in the ROD have not      landfill access and site use                                   December
                                                                   City of Fresno       EPA
yet been implemented.             covenants.                                                       2012




X. Protectiveness Statement

The remedy at OU-1 currently protects human health and the environment because there is no
exposure to hazardous waste due to a functioning landfill cap and landfill gas treatment system
that prevents the release of landfill gases into ambient air. The remedy at OU-2 currently protects
human health and the environment because the groundwater extraction and treatment systems are
functioning as intended. Ongoing landfill gas and treated groundwater monitoring ensure that
humans are not coming into contact with potentially harmful substances. In addition to the
protections provided by the remedies the County and City of Fresno enforce informal well
installation zoning restrictions that prohibit private well installation in areas surrounding the
landfill. However, for the remedy to be protective in the long-term, the finalization, execution,
and recording of land use covenants must be achieved.



XI. Next Review
The next five-year review for the FMSL Site is required by September 2015, five years from the
date of this review.




                                                        31
Figures
[This page intentionally left blank]
     Attachment 1
List of Documents Reviewed
Attachment 1. List of Documents Reviewed.


Kleinfelder 2003. Final Remedial Action Report for Operable Unit 1Fresno Sanitary Landfill.
June 2003.

SJVAPCD 2005. San Joaquin Valley Air Pollution Control District Risk Management Review.
June 2005.

Camp Dresser & McKee 2006. Spring 2006 Semi-Annual Performance Monitoring Program
Report, City of Fresno, Fresno Sanitary Landfill. July 2006.

Camp Dresser & McKee 2006. Ecological Risk Contaminant Pathway Analysis, City of Fresno.
October 2006.

Camp Dresser & McKee 2007. Fall 2006 Semi-Annual Performance Monitoring Program
Report, City of Fresno, Fresno Landfill, February 2007.

Camp Dresser & McKee 2007. Phase 2 Groundwater Remedial Design/Remedial Action, Basis
of Design Report, City of Fresno, and Fresno Sanitary Landfill. February 2007.

Camp Dresser & McKee 2007. Final Phase 1 Groundwater Remedial Action Evaluation Report
#2, City of Fresno, Fresno Sanitary Landfill. March 2007.

Camp Dresser & McKee 2007. Spring 2007 Semi-Annual Performance Monitoring Program
Report, City of Fresno, Fresno Sanitary Landfill, August 2007.

Kleinfelder 2007. Landfill Gas Migration Remediation Procedure, May 2007.

Camp Dresser & McKee 2008. Spring 2008 Annual Performance Monitoring Program Report,
City of Fresno, and Fresno Sanitary Landfill. July 2008.

Camp Dresser & McKee 2009. Spring 2009 Annual Performance Monitoring Program Report,
City of Fresno, and Fresno Sanitary Landfill. July 2009.

Camp Dresser & McKee 2009. Addendum to Supplemental Analysis of Risk, Fresno Sanitary
Landfill. April 2009.

Camp Dresser & McKee 2010. Phase 2 Groundwater Remedial Action Interim Remedial Action
Report, City of Fresno, Fresno Sanitary Landfill. March 2010.

Camp Dresser & McKee 2010. FSL Landfill Regrading and Landfill Control System
Maintenance. June 2010

CH2M Hill, 2005. First Five-Year Review Report for Fresno Sanitary Landfill Superfund Site,
Fresno County, California. September 2005.
Kleinfelder, 2006. Technical Memorandum, PCDD (dioxins) Assessment, Fresno Sanitary
Landfill. October 2005.

Paleontological Working Group: Department of Earth and Environment, California State
University, 2008. Paleontology Mitigation Report State Route 180 West Segment 2 Project,
Fresno County. September 2008.

U.S. Environmental Protection Agency, 1993. Fresno Municipal Sanitary Landfill, OU 1, Record
of Decision. September 1993

U.S. Environmental Protection Agency, 1996. Fresno Municipal Sanitary Landfill, OU-2, Record
of Decision, September 1996.




                                              2
   Attachment 2
ARARs Review Summary
                                                      ARARs Review Summary, Fresno Sanitary Landfill Site
                        Source/ARAR cited in
      Medium                                                                  Requirement Synopsis             Current ARAR Evaluation
                               ROD 2
Chemical
Specific ARARs
Air                   Clean Air Act,                                    National Emissions Standards for     No change.
                      40 CFR Part 61                                    Hazardous Air Pollutants.
                                                                        Identifies and establishes
                                                                        emissions standards for specific
                                                                        chemicals.
Water                 Safe Drinking Water Act,                          Maximum contaminant levels           No change.
                      40 CFR Section 141.61                             (MCLs) for drinking water.
Water                 Water Quality Control Plan                        Water quality objectives,            No change.
                      (Basin Plan) For the                              including narrative and numerical
                      RWQCB and CCR                                     standards that protect the
                                                                        beneficial uses and water quality
                                                                        objectives of surface and ground
                                                                        waters in the region.
Action Specific
ARARs
Water                 Safe Drinking Water Act,                          Requirements for Underground         No change.
                      40 CFR Part 144                                   Injection Control Program.
Water                 Clean Water Act,                                  Technology-based discharge limits    The ROD citation contains an
                       33 CFR Part 301 and 302                          for point sources of pollution.      error. Title 33 of the CFR does
                                                                                                             not include any Parts 301 or
                                                                                                             302. The reference should be to
                                                                                                             Sections 301 and 302 of the
                                                                                                             Clean Water Act, 33 USC
                                                                                                             §§1311 and 1312, which
                                                                                                             address technology-based
                                                                                                             discharge limits. Otherwise, no
                                                                                                             change.
Water                 Clean Water Act,                                  Pretreatment standards for the       The ROD citation contains an
                      33 CFR Part 307                                   control of pollutants to POTW.       error. Title 33 of the CFR does
                                                                                                             not include a Part 307. The
                                                                                                             reference should be to Section
                                                                                                             307 of the Clean Water Act, 33
                                                                                                             USC §1317, which addresses

2
    Neither of the Site RODs distinguished between requirements that were “applicable” versus “relevant and appropriate.”
                 Source/ARAR cited in
      Medium                                    Requirement Synopsis               Current ARAR Evaluation
                        ROD 2
                                                                                  pretreatment standards for the
                                                                                  control of pollutants to POTW.
                                                                                  Otherwise, no change.
All            California Code of          Exemptions to actions taken by or      No change.
               Regulations, Title 23,      at the direction of public agencies
               Section 2511(d)             to clean up or abate conditions of
                                           pollution or nuisance resulting
                                           from unintentional or unauthorized
                                           releases of waste or pollutants to
                                           the environment.
Water          California Code of          Persons responsible for discharges     No change.
               Regulations, Title 23,      at waste management units which
               Section 2510(g)             are closed, abandoned, or inactive
                                           are required to develop and
                                           implement a monitoring program
                                           in accordance with Article 5 of
                                           this chapter.
Water          State Water Resources       Establishes requirements for           No change.
               Control Board, Resolution   investigation and cleanup and
               No. 92-49 III G             abatement of discharges that
                                           impact or threaten water quality.
                                           Dischargers must clean up and
                                           abate the effects of discharges in a
                                           manner that promotes the
                                           attainment of either background
                                           water quality or the best water
                                           quality that is reasonable if
                                           background is not technically and
                                           economically feasible.
Water          State Water Resources       Specifies that with certain            No change.
               Control Board Resolution    exceptions, all ground and surface
               No. 88-63                   waters have the beneficial use of
                                           municipal or domestic water
                                           supply.
Water          California Code of          Requires monitoring for                No change.
               Regulations, Title 23,      compliance with remedial action
               Section 2550.6              objectives for three years from the
                                           date of achieving cleanup levels
                 Source/ARAR cited in
      Medium                                     Requirement Synopsis               Current ARAR Evaluation
                          ROD 2
Soil/Water     California Code of           Requires general soil, surface         No change.
               Regulations, Title 23,       water, and groundwater
               Section 2550.7               monitoring
All            California Code of           Requires an assessment of the          No change.
               Regulations, Title 23,       nature and extent of the release,
               Section 2550.9               including a determination of the
                                            spatial distribution and
                                            concentration of each constituent
All            California Code of           Requires implementation of             No change.
               Regulations, Title 23,       corrective action measures that
               Section 2550.10              ensure that cleanup levels are
                                            achieved throughout the zone
                                            affected by the release by
                                            removing the waste constituents or
                                            treating them in place. Source
                                            control may be required. Also
                                            requires monitoring to determine
                                            the effectiveness of the corrective
                                            actions.
Water          California Code of           Requirements for public water          Articles 4 and 5.5 correspond to
               Regulations, Title 22,       systems. Includes maximum              Sections 64431-64432.8 and
               Division 4, Chapter 15,      contaminant levels.                    64444-64445.2; Article 8 does
               Articles 4, 5.5., and 8                                             not exist. Otherwise, no change.
Water          California Health and        Prohibits the discharge or release     These Title 22 provisions were
               Safety Code §25249.5;        of water or to land of a significant   repealed/renumbered in 2008;
               California Code of           amount of any chemical known to        the current regulations are at
               Regulations, Title 22,       the State of California to cause       Title 27, Sections 25102-27000.
               Division 2, Subdivision 1,   cancer or reproductive toxicity        Otherwise, no change.
               Chapter 3                    when the chemical will probably
                                            pass through a source of drinking
                                            water
Water          California Code of           Groundwater Protection. Creates        No change.
               Regulations, Title 22,       broad groundwater monitoring and
               Sections 66264.90-           compliance standards. Includes
               66264.101                    concentration standards,
                                            monitoring requirements, and
                                            corrective action requirements.
Water          California Code of           Closure and post closure. States       No change.
               Source/ARAR cited in
    Medium                                     Requirement Synopsis              Current ARAR Evaluation
                       ROD 2
             Regulations, Title 22,       that monitoring, maintenance and
             Section 66264.117            reporting requirements must
                                          continue for 30 years past closure
Waste        California Code of           Containers. Requirements for          No change.
             Regulations, Title 22,       facilities that store containers of
             Sections 66264.170-          hazardous waste.
             66264.178
Tanks        California Code of           Tanks. Outlines design and            No change.
             Regulations, Title 22,       management standards for tanks.
             Sections 66264.190-
             66264.200
Landfill     California Code of           Engineered alternatives to the         California consolidated certain
             Regulations, Title 23        prescriptive standard for final       regulations pertaining to waste
             Sections 2510(a), 2510(b),   cover at a waste management unit.     management units in 1993;
             2510(c), 2510(d)                                                   pursuant to that change, the
                                                                                relevant citation for these
                                                                                purposes is Title 27, Section
                                                                                20080(a)-(d). Otherwise, no
                                                                                change.
Landfill     California Code of           Establishes general closure            California consolidated certain
             Regulations, Title 23        requirements                          regulations pertaining to waste
             Section 2580                                                       management units in 1993;
                                                                                pursuant to that change, the
                                                                                relevant citations for these
                                                                                purposes are Title 27, Section
                                                                                20950 and 22207. Otherwise,
                                                                                no change.
Landfill     California Code of           Establishes landfill closure          The Title 23 provision was
             Regulations, Title 23,       requirements.                         repealed/renumbered; the
             Section 2581                                                       current regulation is at Title 27,
                                                                                Section 21090. Otherwise, no
                                                                                change.
Landfill     California Code of           Pertains to general design and         California consolidated certain
             Regulations, Title 23,       construction requirements for         regulations pertaining to waste
             Section 2541                 containment structures                management units in 1993;
                                                                                pursuant to that change, the
                                                                                relevant citation for these
                                                                                purposes is Title 27, Section
               Source/ARAR cited in
    Medium                                 Requirement Synopsis               Current ARAR Evaluation
                      ROD 2
                                                                             20320. Otherwise, no change.
Landfill     California Code of       Pertains to the design,                 California consolidated certain
             Regulations, Title 23,   construction, and maintenance of       regulations pertaining to waste
             Section 2546             drainage, collection and holding       management units in 1993;
                                      facilities for waste management        pursuant to that change, the
                                      units                                  relevant citation for these
                                                                             purposes is Title 27, Section
                                                                             20365. Otherwise, no change.
Landfill     California Code of       Pertains to design and construction    California consolidated certain
             Regulations, Title 23,   of landfill structures to withstand    regulations pertaining to waste
             Section 2547             seismic events                         management units in 1993;
                                                                             pursuant to that change, the
                                                                             relevant citations for these
                                                                             purposes are Title 27, Sections
                                                                             20370 and 21750. Otherwise,
                                                                             no change.
Landfill     California Code of       Pertains to the information             California consolidated certain
             Regulations, Title 23,   required in the design reports and     regulations pertaining to waste
             Section 2596             operations plan for containment        management units in 1993;
                                      structures, precipitation and          pursuant to that change, the
                                      drainage control facilities and        relevant citation for these
                                      ancillary facilities.                  purposes is Title 27, Section
                                                                             21760. Otherwise, no change.
Landfill     California Code of       Pertains to gas control                 These Title 14 provisions were
             Regulations, Title 14,                                          repealed/renumbered; the
             Section 17705;                                                  current regulations are at Title
             California Code of                                              27, Section 20919 and 20937.
             Regulations, Title 14,                                          Otherwise, no change.
             Section 17783.15
Landfill     California Code of       Pertains to construction quality       This Title 14 provision was
             Regulations, Title 14,   assurance for solid waste facilities   repealed/renumbered; the
             Section 17774                                                   current regulation is at Title 27,
                                                                             Section 20324. Otherwise, no
                                                                             change.
Landfill     California Code of       Pertains to gas monitoring and          This Title 14 provision was
             Regulations, Title 14,   control during closure and post-       divided and
             Section 17783            closure                                repealed/renumbered; the
                                                                             current regulations are at Title
               Source/ARAR cited in
    Medium                                  Requirement Synopsis          Current ARAR Evaluation
                      ROD 2
                                                                         27, Sections 20415, and 20919-
                                                                         20923. Otherwise, no change.
Landfill     California Code of       Pertains to monitored parameters    These Title 14 provisions were
             Regulations, Title 14,   and monitoring frequency           repealed/renumbered; the
             Sections 17783.9 and                                        current regulations are at Title
             17783.11                                                    27, Sections 20932, 20933, and
                                                                         20934. Otherwise, no change.
Landfill     California Code of       Pertains to final cover             This Title 14 provision was
             Regulations, Title 14,                                      repealed/renumbered; the
             Section 17773                                               current regulation is at Title 27,
                                                                         Section 21140. Otherwise, no
                                                                         change.
Landfill     California Code of       Pertains to final site face         This Title 14 provision was
             Regulations, Title 14,                                      repealed/renumbered; the
             Section 17777                                               current regulations are at Title
                                                                         27, Section 21090, 21145, and
                                                                         21750. Otherwise, no change.
Landfill     California Code of       Pertains to final drainage         This Title 14 provision was
             Regulations, Title 14,                                      repealed/renumbered; the
             Section 17778                                               current regulation is at Title 27,
                                                                         Sections 20365, 21150, and
                                                                         21760. Otherwise, no change.
Landfill     California Code of       Pertains to slope protection and   This Title 14 provision was
             Regulations, Title 14,   erosion control                    repealed/renumbered; the
             Section 17779                                               current regulations are at Title
                                                                         27, Sections 21090 and 21150.
                                                                         Otherwise, no change.
Landfill     California Code of       Pertains to perimeter monitoring   This Title 14 provision was
             Regulations, Title 14,   network                            mis-cited in the ROD: it should
             Section 17778.5                                             have been Title 14, Section
                                                                         17783.5. In any event, that
                                                                         section was
                                                                         repealed/renumbered; the
                                                                         current regulations are at Title
                                                                         27, Sections 20415 and 20925.
                                                                         Otherwise, no change.
Landfill     California Code of       Pertains to structure monitoring    This Title 14 provision was
             Regulations, Title 14,                                      repealed/renumbered; the
               Source/ARAR cited in
    Medium                                 Requirement Synopsis            Current ARAR Evaluation
                       ROD 2
             Section 17783.7                                              current regulation is at Title 27,
                                                                          Section 20931. Otherwise, no
                                                                          change.
Landfill     California Code of       Pertains to final grading            This Title 14 provision was
             Regulations, Title 14,                                       repealed/renumbered; the
             Section 17776                                                current regulations are at Title
                                                                          27, Sections 21142 and 21769.
                                                                          Otherwise, no change.
Landfill     California Code of       Pertains to post-closure             This Title 14 provision was
             Regulations, Title 14,   maintenance                         repealed/renumbered; the
             Section 17788                                                current regulation is at Title 27,
                                                                          Section 21180. Otherwise, no
                                                                          change.
Landfill     California Code of       Pertains to change of ownership     This Title 14 provision was
             Regulations, Title 14,   during closure and post-closure     repealed/renumbered; the
             Section 17792            maintenance                         current regulation is at Title 27,
                                                                          Section 21200. Otherwise, no
                                                                          change.
Landfill     California Code of       Pertains to post-closure land-use    This Title 14 provision was
             Regulations, Title 14,                                       repealed/renumbered; the
             Section 17796                                                current regulation is at Title 27,
                                                                          Section 21190. Otherwise, no
                                                                          change.
           Attachment 3

Site Visit/Trip Report, with Photographs
FINAL Trip Report
Fresno Municipal Sanitary Landfill Superfund Site, Fresno, California


1. INTRODUCTION
a. Date of Visit: 11 March 2010
b. Location: Fresno, California
c. Purpose: A site visit was conducted to visually inspect and document the conditions of the
remedy, the site, and the surrounding area for inclusion into the third Five-Year Review Report.
d. Participants:

Marlowe Laubach           USACE Seattle District Chemical Engineer                 (206) 764-4480
Rick Garrison             USACE Seattle District Hydrogeologist                    (206) 764-3312
ZiZi Searles              EPA Region 10 Remedial Project Manager (RPM)             (415) 972-3178
Fred Schauffler           EPA Region 10 Remedial Project Manager (RPM)             (415) 972-3174
Yash Nyznyk               CDM                                                      (925) 296-8065
George Slater             City of Fresno                                           (559) 960-8049
Jim Roher                 Department of Toxic Substances Control                   (916) 255-3709
Sam Martinez              Department of Toxic Substances Control                   (916) 255-6583
Daniel Carlson            Regional Water Quality Control Board                     (559) 444-2484
Russell Walls             Regional Water Quality Control Board                     (559) 488-4392

2. SUMMARY
A site visit to the Fresno Municipal Sanitary Landfill Superfund Site was conducted on 11 March
2010. The participants toured the groundwater treatment plant and landfill after an overview of the
site and the remedial history. Two operable units were established; OU-1 for the landfill closure and
OU-2 for the groundwater treatment. The landfill closure and groundwater treatment plant
construction were performed concurrently with the park and sports facility construction and
completed in 2002. The groundwater treatment plant is manned daily by the site manager.

3. DISCUSSION

On 11 March, Rick Garrison and Marlowe Laubach flew to Fresno, California and met the rest of
the site visit participants at the site. The weather was sunny and warm (temperature in the 60s). The
site is accessed from Jensen Avenue and is located southwest of downtown Fresno.

Mr. Garrison and Ms. Laubach arrived in Fresno around 1:00 pm and met the other participants at
the site. The overview was presented in the groundwater treatment plant office and led by Mr. Slater
and Mr. Nyznyk.

After the overview discussion, the team proceeded outside to inspect the groundwater treatment
plant. The former extraction machinery were present adjacent to the influent groundwater piping.
Next to the influent piping was a small shed that housed the sodium hypochlorite used to prevent
biofouling in the packed tower. Ms. Laubach noticed that no pumping of sodium hypochlorite was
occurring. Mr. Slater stated that the metering pump had recently broken down and they just received
the replacement parts. The pump should be back on-line shortly. Typically, the sodium hypochlorite
is metered 24 hours 7 days a week.

Ms. Laubach then inspected the packed tower. She noted the bypass that allowed atmospheric
discharge from the packed tower. Mr. Nyznyk stated that the bypass operation is manual.

Ms. Laubach and Mr. Garrison then inspected the landfill gas treatment system (flare). Mr. Slater
stated that there are 116 gas extraction wells that are manually adjusted on a monthly basis. The
influent gas flow stays the constant at 33-34% methane. Ms. Laubach and Mr. Garrison were shown
the flow meter on the gas inflow.

After the groundwater treatment plant walkthrough, part of the team then drove out onto the landfill
cap. No fence surrounds the landfill separating it from the park and sports facility.
The Regional Water Quality Control Board folks had to leave prior to the landfill visit. We headed
to the southern point of the landfill that gave us a brief look at the surrounding park and sports
facility. Mr. Slater indicated that the main gate into the park is closed after park hours. Otherwise,
people generally have access to the park facility and to the landfill.

The landfill was covered in grass that looked very well established. A sprinkler system was
observed and it was explained that the sprinkler system was installed during the landfill closure
work that is currently not used. The team began the tour on the south end of the landfill. We were
shown the new paintball facility adjacent to the southern boundary of the landfill that was recently
implemented at the sports facility. Along the east side of the landfill, large sections of the lower
slope had subsided. The subsidence appears in waves. The theory being that during the landfill
operation, truck ramps were used and the trash was dumped in-between the truck ramps. As the
years have passed, the trash subsided but the areas where of the truck ramps did not which give the
east side a wavy appearance. Also, on the east side of the landfill, a condensate pipe was observed
above ground. Apparently, because of the subsidence, the condensate pipe was not flowing properly
so it had to be brought to the surface. This pipe carries condensate collected from the gas extraction
wells to the sanitary sewer. The condensate is not sampled prior to discharge into the sewer.

The team looked at one of the extraction well vaults, PW-1A. This extraction well did not have the
pump installed as the water levels had dropped recently. All the piping and gauges were still intact.
No monitoring wells were inspected but these are inspected on a regular basis.

The team then drove to the top of the landfill and viewed a typical gas extraction well. The
extraction well cover is plywood for ease of inspecting. Numerous rodent holes were observed in
the vicinity of the well. Mr. Slater stated that a rodent “deterrent” program is implemented in the
spring to minimize the number of burrowing animals in the landfill cover. However, the animals do
not appear to have broken through the geotextile membrane of the cap.

All components of the remedial action appear to be in good condition and operating as intended.

The site visit ended at approximately 1600.
4. ACTIONS
The USACE will incorporate information obtained from the site visit into the Five Year Review
report.




Richard Garrison                               Marlowe Laubach
Geologist                                     Chemical Engineer
EN-GB-GE                                            EN-GB-ET
Site Visit Photos




                    Treatment Facility       Packed Tower Aerator




                Chemical addition building   Packed tower bypass
 Treated water pipeline                          Flare




Gas flare influent piping   Groundwater extraction well and monitoring well
       Extraction well PW-1A                                Landfill Road




Sprinkler heads and paint ball facility   Subsidence on east slope and squirrel bait location




       Additional subsidence                              More subsidence
 Gas extraction well    Drainage channel on slope of landfill




Gas condensate piping    Agricultural areas surrounding site




Regional sports park                 Park lake
    Attachment 4
Site Inspection Checklist
[This page intentionally left blank]
                     Five-Year Review Site Inspection Checklist
(Working document for site inspection. Information may be completed by hand and attached to the Five-Year Review
report as supporting documentation of site status. “N/A” refers to “not applicable.”)


                                          I. SITE INFORMATION
 Site name: Fresno Municipal Sanitary Landfill           Date of inspection: 11 March 2010
 Location and Region: Fresno, CA/Region 9                EPA ID: CAD 980636914
 Agency, office, or company leading the five-year        Weather/temperature: Sunny/60 F
 review: EPA Region 9
 Remedy Includes: (Check all that apply)
            Landfill cover/containment             Monitored natural attenuation
            Access controls                        Groundwater containment
            Institutional controls                 Vertical barrier walls
            Groundwater pump and treatment
            Surface water collection and treatment
            Other______________________________________________________________________
         _____________________________________________________________________________
 Attachments:        Inspection team roster attached            Site map attached
                                   II. INTERVIEWS (Check all that apply)
 1. O&M site manager ____________________________ ______________________          ____________
                                    Name                         Title                Date
    Interviewed   at site  at office    by phone Phone no. ______________
    Problems, suggestions;  Report attached ________________________________________________
    __________________________________________________________________________________


 2. O&M staff ____________________________ ______________________ ____________
                           Name                          Title                 Date
    Interviewed   at site  at office    by phone Phone no. ______________
    Problems, suggestions;  Report attached _______________________________________________
    __________________________________________________________________________________
3.      Local regulatory authorities and response agencies (i.e., State and Tribal offices, emergency response
        office, police department, office of public health or environmental health, zoning office, recorder of
        deeds, or other city and county offices, etc.) Fill in all that apply.

        Agency ____________________________
        Contact ____________________________ __________________ ________ ____________
                          Name                         Title             Date Phone no.
        Problems; suggestions; Report attached _______________________________________________
        __________________________________________________________________________________

        Agency ____________________________
        Contact ____________________________ __________________ ________ ____________
                          Name                         Title             Date Phone no.
        Problems; suggestions; Report attached _______________________________________________
        __________________________________________________________________________________

        Agency ____________________________
        Contact ____________________________ __________________ ________ ____________
                          Name                         Title             Date Phone no.
        Problems; suggestions; Report attached _______________________________________________
        __________________________________________________________________________________

        Agency ____________________________
        Contact ____________________________ __________________ ________ ____________
                          Name                         Title             Date Phone no.
        Problems; suggestions; Report attached _______________________________________________
        __________________________________________________________________________________


4.      Other interviews (optional)      Report attached.
Interviews will be presented separately in the Five Year Review Report.
            III. ON-SITE DOCUMENTS & RECORDS VERIFIED (Check all that apply)
1.    O&M Documents
        O&M manual                       Readily available        Up to date      N/A
        As-built drawings                Readily available        Up to date      N/A
        Maintenance logs                 Readily available        Up to date      N/A
      Remarks: O&M documents available for Phase 1 and Phase 2 groundwater remedial actions.
2.    Site-Specific Health and Safety Plan        Readily available Up to date   N/A
         Contingency plan/emergency response plan Readily available Up to date   N/A
      Remarks__________________________________________________________________________
      _________________________________________________________________________________
3.    O&M and OSHA Training Records          Readily available    Up to date     N/A
      Remarks__________________________________________________________________________
      _________________________________________________________________________________
4.    Permits and Service Agreements
         Air discharge permit             Readily available          Up to date        N/A
         Effluent discharge               Readily available          Up to date        N/A
         Waste disposal, POTW             Readily available          Up to date        N/A
         Other permits_____________________        Readily available          Up to date      N/A
      Remarks: Permits and service agreements are not applicable. The Consent Decree provides discharge
      requirements.
5.    Gas Generation Records              Readily available          Up to date        N/A
      Remarks: No gas generation records. Only the circular chart recorder log on the gas influent to the
      flare is available.
6.    Settlement Monument Records            Readily available    Up to date     N/A
      Remarks__________________________________________________________________________
      _________________________________________________________________________________
7.    Groundwater Monitoring Records               Readily available        Up to date        N/A
      Remarks: Annual monitoring reports are prepared and every 6 months data from the quarterly
      monitoring are provided to EPA.
8.    Leachate Extraction Records            Readily available    Up to date     N/A
      Remarks__________________________________________________________________________
      _________________________________________________________________________________
9.    Discharge Compliance Records
         Air                                 Readily available    Up to date     N/A
         Water (effluent)                    Readily available    Up to date     N/A
      Remarks__________________________________________________________________________
      _________________________________________________________________________________
10.   Daily Access/Security Logs                         Readily available     Up to date         N/A
      Remarks: Daily access logs are available for the groundwater treatment building only. If the park is
      open, then the landfill is accessible to all park patrons.
                                               IV. O&M COSTS
1.      O&M Organization
          State in-house               Contractor for State
          PRP in-house                 Contractor for PRP
          Federal Facility in-house    Contractor for Federal Facility
          Other__________________________________________________________________________
         _________________________________________________________________________________
2.      O&M Cost Records
           Readily available       Up to date
           Funding mechanism/agreement in place
        Original O&M cost estimate____________________           Breakdown attached

                            Total annual cost by year for review period if available

        From__________ To__________            __________________         Breakdown attached
                Date          Date                   Total cost
        From__________ To__________            __________________         Breakdown attached
                Date          Date                   Total cost
        From__________ To__________            __________________         Breakdown attached
                Date          Date                   Total cost
        From__________ To__________            __________________         Breakdown attached
                Date          Date                   Total cost
        From__________ To__________            __________________         Breakdown attached
                Date          Date                   Total cost

Groundwater treatment O&M costs are readily available. The landfill monitoring and treatment O&M costs
were not available.
3.      Unanticipated or Unusually High O&M Costs During Review Period
        Describe costs and reasons: Anticipate costs for the landfill regrading to occur in August 2010.
                V. ACCESS AND INSTITUTIONAL CONTROLS                        Applicable       N/A
A. Fencing
1.      Fencing damaged                Location shown on site map          Gates secured       N/A
        Remarks: No fences surround the landfill or groundwater treatment plant. However, the entrance to the
        sports facility/park areas surrounding the landfill and treatment plant is locked during non- operating
        hours prohibiting access.
B. Other Access Restrictions
1.      Signs and other security measures               Location shown on site map           N/A
        Remarks: No signs identify the site.
C. Institutional Controls (ICs)
1.      Implementation and enforcement
        Site conditions imply ICs not properly implemented                        Yes      No       N/A
        Site conditions imply ICs not being fully enforced                        Yes      No       N/A

        Type of monitoring (e.g., self-reporting, drive by) _________________________________________
        Frequency ________________________________________________________________________
        Responsible party/agency ____________________________________________________________
        Contact ____________________________ __________________ ________                  ____________
                           Name                            Title                 Date Phone no.

        Reporting is up-to-date                                                   Yes      No       N/A
        Reports are verified by the lead agency                                   Yes      No       N/A

        Specific requirements in deed or decision documents have been met Yes No   N/A
        Violations have been reported                                     Yes No   N/A
        Other problems or suggestions:         Report attached
        _________________________________________________________________________________
        _________________________________________________________________________________
        _________________________________________________________________________________
        _________________________________________________________________________________
2.      Adequacy                      ICs are adequate         ICs are inadequate                 N/A
        Remarks: Institutional controls required by the ROD and consent decree have not been implemented.
        Future use of site remains unknown.
D. General
1.      Vandalism/trespassing   Location shown on site map   No vandalism evident
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
2.      Land use changes on site       N/A
        Remarks: A paint ball facility has been added to the sports facility complex in recent years. Rainbow
        trout stocking of the park pond began in February 2010.
3.      Land use changes off site N/A
        Remarks: All land use surrounding the site has remained the same. Do not anticipate zoning to change.
                                    VI. GENERAL SITE CONDITIONS
A. Roads            Applicable        N/A
1.      Roads damaged                   Location shown on site map        Roads adequate            N/A
        Remarks: An unpaved road encircles the landfill at the perimeter, provides access to another unpaved
        road encircling the top of the landfill. No damage observed.
B. Other Site Conditions
        Remarks ______________________________________________________________
        ____________________________________________________________________
        ____________________________________________________________________
        ____________________________________________________________________
        ____________________________________________________________________
        ____________________________________________________________________

                            VII. LANDFILL COVERS                Applicable      N/A
A. Landfill Surface
1.      Settlement (Low spots)                    Location shown on site map     Settlement not evident
        Areal extent______________             Depth____________
        Remarks: Subsidence along the east slope of the landfill was observed. Based on a settlement study, the
        top of the landfill has only settled 18 inches in 7 years.
2.      Cracks                                 Location shown on site map          Cracking not evident
        Lengths____________       Widths___________ Depths__________
        Remarks: Cracks in the landfill cover were observed on the east slope of the landfill primarily in areas
        of subsidence.
3.      Erosion                              Location shown on site map            Erosion not evident
        Areal extent______________       Depth____________
        Remarks: Erosion was evident primarily in areas of subsidence.
4.      Holes                                 Location shown on site map         Holes not evident
        Areal extent______________         Depth____________
        Remarks: Ground squirrel holes are observed throughout the landfill cover. A robust ground squirrel
        control program occurs during the spring/summer. The holes do not penetrate the geomembrane.
5.      Vegetative Cover              Grass             Cover properly established          No signs of stress
           Trees/Shrubs (indicate size and locations on a diagram)
        Remarks: A sprinkler system was installed with the vegetative cover to help establish the grass.
        However, this sprinkler system is no longer used. For example, the vegetative cover is not watered
        during drier months.
6.      Alternative Cover (armored rock, concrete, etc.) N/A
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
7.      Bulges                         Location shown on site map   Bulges not evident
        Areal extent______________   Height____________
        Remarks__________________________________________________________________________
        _________________________________________________________________________________


8.      Wet Areas/Water Damage         Wet areas/water damage not evident
           Wet areas                   Location shown on site map     Areal extent______________
           Ponding                     Location shown on site map     Areal extent______________
           Seeps                       Location shown on site map     Areal extent______________
           Soft subgrade               Location shown on site map     Areal extent______________
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
9.       Slope Instability      Slides  Location shown on site map  No evidence of slope instability
         Areal extent______________
         Remarks__________________________________________________________________________
         _________________________________________________________________________________
B. Benches                  Applicable        N/A
       (Horizontally constructed mounds of earth placed across a steep landfill side slope to interrupt the slope
       in order to slow down the velocity of surface runoff and intercept and convey the runoff to a lined
       channel.)
1.       Flows Bypass Bench             Location shown on site map          N/A or okay
         Remarks__________________________________________________________________________
         _________________________________________________________________________________
2.       Bench Breached                 Location shown on site map    N/A or okay
         Remarks__________________________________________________________________________
         _________________________________________________________________________________
3.       Bench Overtopped               Location shown on site map          N/A or okay
         Remarks__________________________________________________________________________
         _________________________________________________________________________________
C. Letdown Channels         Applicable         N/A
       (Channel lined with erosion control mats, riprap, grout bags, or gabions that descend down the steep side
       slope of the cover and will allow the runoff water collected by the benches to move off of the landfill
       cover without creating erosion gullies.)
1.       Settlement                    Location shown on site map          No evidence of settlement
         Areal extent______________         Depth____________
         Remarks: No significant settlement observed.
2.       Material Degradation      Location shown on site map     No evidence of degradation
         Material type_______________   Areal extent_____________
         Remarks__________________________________________________________________________
         _________________________________________________________________________________
3.       Erosion                    Location shown on site map No evidence of erosion
         Areal extent______________      Depth____________
         Remarks__________________________________________________________________________
         _________________________________________________________________________________
4.     Undercutting               Location shown on site map No evidence of undercutting
       Areal extent______________      Depth____________
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
5.     Obstructions    Type_____________________        No obstructions
          Location shown on site map             Areal extent______________
       Size____________
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
6.     Excessive Vegetative Growth                  Type____________________
          No evidence of excessive growth
          Vegetation in channels does not obstruct flow
          Location shown on site map                    Areal extent______________
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
D. Cover Penetrations      Applicable       N/A
1.     Gas Vents                    Active           Passive
          Properly secured/locked            Functioning     Routinely sampled Good condition
          Evidence of leakage at penetration                 Needs Maintenance
          N/A
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
2.     Gas Monitoring Probes
         Properly secured/locked             Functioning       Routinely sampled    Good condition
         Evidence of leakage at penetration                    Needs Maintenance    N/A
       Remarks: These are located at the perimeter of the landfill.
3.     Monitoring Wells (within surface area of landfill)
         Properly secured/locked            Functioning       Routinely sampled     Good condition
         Evidence of leakage at penetration                   Needs Maintenance     N/A
       Remarks: Monitoring wells are located along the perimeter of the landfill.
4.     Leachate Extraction Wells
          Properly secured/locked            Functioning Routinely sampled Good condition
          Evidence of leakage at penetration             Needs Maintenance N/A
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
5.     Settlement Monuments           Located        Routinely surveyed   N/A
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
E. Gas Collection and Treatment              Applicable         N/A
1.     Gas Treatment Facilities
          Flaring               Thermal destruction  Collection for reuse
          Good condition        Needs Maintenance
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
2.     Gas Collection Wells, Manifolds and Piping
          Good condition          Needs Maintenance
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
3.     Gas Monitoring Facilities (e.g., gas monitoring of adjacent homes or buildings)
          Good condition            Needs Maintenance          N/A
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
F. Cover Drainage Layer                       Applicable        N/A
1.     Outlet Pipes Inspected                 Functioning                N/A
       Remarks: In good condition
2.     Outlet Rock Inspected                  Functioning                N/A
       Remarks: In good condition
G. Detention/Sedimentation Ponds              Applicable        N/A
1.     Siltation Areal extent______________ Depth____________             N/A
           Siltation not evident
       Remarks__________________________________________________________________________
       _________________________________________________________________________________
2.     Erosion          Areal extent______________ Depth____________
           Erosion not evident
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
3.     Outlet Works                Functioning        N/A
        Remarks: The site has capability to pump treated water to various holding facilities (the east basin,
        park lake, e.g)
4.     Dam                     Functioning   N/A
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
H. Retaining Walls                    Applicable        N/A
1.      Deformations                Location shown on site map       Deformation not evident
        Horizontal displacement____________      Vertical displacement_______________
        Rotational displacement____________
        Remarks: __________________________________________________________________________
         _________________________________________________________________________________
2.      Degradation                    Location shown on site map           Degradation not evident
        Remarks: The current retaining walls are constructed with timbers. These will be replaced with
        interlocking block during the landfill regrade project that repairs the landfill subsidence.
I. Perimeter Ditches/Off-Site Discharge                 Applicable        N/A
1.      Siltation          Location shown on site map Siltation not evident
        Areal extent______________      Depth____________
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
2.      Vegetative Growth           Location shown on site map N/A
           Vegetation does not impede flow
        Areal extent______________        Type____________
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
3.      Erosion                       Location shown on site map           Erosion not evident
        Areal extent______________         Depth____________
        Remarks: Any settlement in the perimeter ditches near the landfill subsidence areas will be addressed in
        the landfill regrade project.
4.      Discharge Structure             Functioning      N/A
        Remarks: Low spots on the top of the landfill funnel water to drainage structures along the slopes of the
        landfill. These lead to a drainage ditch located along the base perimeter of the landfill. Culverts take
        water, if any, to the east basin.
                     VIII. VERTICAL BARRIER WALLS                      Applicable      N/A
1.      Settlement                 Location shown on site map Settlement not evident
        Areal extent______________      Depth____________
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
2.      Performance Monitoring Type of monitoring__________________________
           Performance not monitored
        Frequency_______________________________ Evidence of breaching
        Head differential__________________________
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
           IX. GROUNDWATER/SURFACE WATER REMEDIES                          Applicable         N/A
A. Groundwater Extraction Wells, Pumps, and Pipelines                   Applicable      N/A
1.      Pumps, Wellhead Plumbing, and Electrical
           Good condition        All required wells properly operating Needs Maintenance N/A
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
        _________________________________________________________________________________
2.      Extraction System Pipelines, Valves, Valve Boxes, and Other Appurtenances
           Good condition           Needs Maintenance
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
3.      Spare Parts and Equipment
           Readily available      Good condition  Requires upgrade  Needs to be provided
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
B. Surface Water Collection Structures, Pumps, and Pipelines            Applicable      N/A
1.      Collection Structures, Pumps, and Electrical
          Good condition             Needs Maintenance
        Remarks: Surface water collection structures are gravity fed.
2.      Surface Water Collection System Pipelines, Valves, Valve Boxes, and Other Appurtenances
           Good condition          Needs Maintenance
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
3.      Spare Parts and Equipment
           Readily available      Good condition  Requires upgrade  Needs to be provided
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
C. Treatment System                  Applicable        N/A
1.      Treatment Train (Check components that apply)
          Metals removal                        Oil/water separation            Bioremediation
          Air stripping                         Carbon adsorbers
          Filters_________________________________________________________________________
          Additive (e.g., chelation agent, flocculent)_____________________________________________
          Others_________________________________________________________________________
          Good condition                        Needs Maintenance
          Sampling ports properly marked and functional
          Sampling/maintenance log up to date
          Equipment properly identified
          Quantity of groundwater treated annually________________________
          Quantity of surface water treated annually________________________
        Remarks: Sampling occurs quarterly and a report is submitted annually. However, every 6 months,
        CDM transfers the data to EPA.
2.      Electrical Enclosures and Panels (properly rated and functional)
           N/A              Good condition            Needs Maintenance
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
3.      Tanks, Vaults, Storage Vessels
          N/A              Good condition              Proper secondary containment        Needs Maintenance
        Remarks: Tanks used to store additives used to prevent biofouling in the packed tower.
4.      Discharge Structure and Appurtenances
           N/A             Good condition      Needs Maintenance
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
5.      Treatment Building(s)
           N/A             Good condition (esp. roof and doorways)  Needs repair
           Chemicals and equipment properly stored
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
6.      Monitoring Wells (pump and treatment remedy)
           Properly secured/locked         Functioning    Routinely sampled Good condition
           All required wells located      Needs Maintenance                N/A
        Remarks__________________________________________________________________________
        _________________________________________________________________________________
D. Monitoring Data
1.     Monitoring Data
          Is routinely submitted on time                     Is of acceptable quality
2.     Monitoring data suggests:
          Groundwater plume is effectively contained         Contaminant concentrations are declining
D. Monitored Natural Attenuation
1.     Monitoring Wells (natural attenuation remedy)
          Properly secured/locked           Functioning    Routinely sampled Good condition
          All required wells located        Needs Maintenance                N/A
       Remarks__________________________________________________________________________
       _________________________________________________________________________________

X. OTHER REMEDIES
     If there are remedies applied at the site which are not covered above, attach an inspection sheet describing
     the physical nature and condition of any facility associated with the remedy. An example would be soil
     vapor extraction.


     No other remedies applied to this site.
                                     XI. OVERALL OBSERVATIONS
A.     Implementation of the Remedy


       Describe issues and observations relating to whether the remedy is effective and functioning as designed.
       Begin with a brief statement of what the remedy is to accomplish (i.e., to contain contaminant plume,
       minimize infiltration and gas emission, etc.).

       From the ROD, the remedy for OU-1 (landfill) is intended 1) to collect and control the release of landfill
       gas (LFG); 2) to control infiltration of storm water into the trash; 3) to collect leachate in gas extraction
       wells or LFG condensate in gas collection system and treat off-site; 4) control the intrusion of oxygen
       into trash; 5) control erosion and off-site transport of contaminated soils; 6) collect and manage
       incident storm water;7) treat and collect LFG to destroy harmful contaminants.

       The remedy for OU-1 is currently functioning as designed. Recent occurrence of subsidence of the east
       slope of the landfill is to be repaired under a landfill regrade project which is anticipated to occur in
       August 2010. The landfill gas is still being removed from the landfill subsurface and treated with the
       flare. A condensate collection system is currently installed which discharges collected condensate to the
       sanitary sewer. No sampling of condensate is performed. The landfill cap provides a means to control
       stormwater infiltration and exposure to the trash.

       From the ROD, the remedy for OU-2 (groundwater) is intended to restore the aquifer to beneficial use
       (MCLs).

       The remedy for OU-2 is currently functioning as designed. The groundwater treatment system treats
       contaminated groundwater via a packed tower aerator with the treated water discharged into the East
       Basin and/or the Park Lake. Groundwater monitoring is conducted on a quarterly basis. Regional
       groundwater levels have decreased and affect the treatment system’s ability to pump and treat
       contaminated groundwater. However, groundwater contaminant levels generally have decreased since
       the implementation of the remedy.



B.     Adequacy of O&M
Describe issues and observations related to the implementation and scope of O&M procedures. In
particular, discuss their relationship to the current and long-term protectiveness of the remedy.

Specific O&M procedures for landfill cap monitoring are not in place. Currently, the site manager
during everyday walkthroughs observes the landfill cap but no broad cap monitoring is in place. Per
CDM, after the landfill re-grade project to address the subsidence on the east slope of the landfill, a new
monitoring program is to be put in place. This will include an annual maintenance checklist that would
include inspection of landfill during any significant rainfall.
C.   Early Indicators of Potential Remedy Problems
     Describe issues and observations such as unexpected changes in the cost or scope of O&M or a high
     frequency of unscheduled repairs that suggest that the protectiveness of the remedy may be compromised
     in the future.

     No issues noted that may compromise the protectiveness of the remedy.
D.   Opportunities for Optimization
     Describe possible opportunities for optimization in monitoring tasks or the operation of the remedy.

     No specific optimization of the remedy has been noted. CDM does provide recommendations to optimize
     monitoring within their annual monitoring report.
Attachment 5
Interview Records
Five-Year Review Interview Record                Interviewee:
                                                 Patricia Bowlin
                                                 EPA Region 10 RPM
                                                 (415) 972-3177
Site Name                                        EPA ID No.                          Date of     Interview
                                                                                     Interview   Method
Fresno Municipal Sanitary Landfill               CAD98036914                         4/5/10      Phone
                                                                                                 Fax/Email
                                                                                                 In person

Interview      Organization       Phone          Email                               Address
Contacts
ZiZi Searles   US EPA Region 10   415.972.3178   Searles.zizi@epa.gov                75 Hawthorne St
                                                                                     San Francisco, CA 94105
Marlowe        USACE, Seattle     206.764.4480   Marlowe.d.laubach@usace.army.mil    4735 E Marginal Way S,
Laubach                                                                              Seattle, WA 98134
Rick           USACE, Seattle     206.764.       Richard.e.garrison@usace.army.mil   4735 E Marginal Way S,
Garrison                                                                             Seattle, WA 98134

Interview Questions
1. What is your relationship to the site? What is your overall impression of the work conducted at
the site to date? (general sentiment)

Response:
I am the EPA RPM for the site. In general, the PRPs are cooperative. Work is moving forward although
work does not move very quickly because of city bureaucracy. For example, I have been waiting for the
subsidence design on the east side of the landfill. Design of the re-grading plan has to be reviewed by in-
house team and CDM prior to submission to EPA.
2. Do you feel well informed about the site’s activities and progress?

Response:
I think I’m pretty well informed. Quarterly reports do come in; [The City will] notify us in general when
the flare [is] shut down.

I was not informed of the recent report of theft at the site. I should have been notified. Generally, the
City lets me know about the GWTP and flare operations. CDM provides information they are responsible
for quicker likely because this is data that they manage. The City is a little slower with providing
information.
3. Have there been routine communications or activities (site visits, inspections, reporting activities,
etc.) conducted by your office regarding the site? If so please give purpose and results.

Response:
Ms. Zizi Searles went to landfill for site visit inspection on March 11 on behalf of Ms. Bowlin. EPA
receives the quarterly reports for both OUs. We receive the semi-annual data monitoring and the annual
report. I haven’t personally conducted a site visit in the last year. We do have periodic conference calls
or meet at CDM’s office in Walnut Creek.
4. Is the remedy functioning as expected? How well is the remedy performing?

Response:
OU-1: The cap in general is functioning as expected. Regular monitoring of the landfill gas wells and cap
since the last FYR have helped as part of the comprehensive monitoring of the cap.
OU-2: The individual components are operating well
There has been a concern A-zone with the fouling of extraction wells and the water table drop. However,
the water table drop is a regional issue. Currently, only one A-aquifer well is operating.

A question is whether the new B-aquifer wells are providing containment of the plume. We are about
ready to determine this, since it’s been just about a year of operation of the B-wells.
5. What does the monitoring data show? Are there any trends that show contaminant levels are
decreasing? Have any new or emerging COCs been identified? If so, have they impacted the
effectiveness of the remedy?

Response:
The current monitoring data interpretation needs to be done. Typical trends show stable or decreasing
concentrations. No new or emerging COCs have been identified at this point. This is needs to be
determined. CDM Phase 2 RA is doing what is intended.
6. Are you aware of any institutional controls, site access controls, new ordinances in place,
changes in actual or projected land use, complaints being filed or unusual activities at the site? If
so please describe in detail.

Response:
There are 2 land-use covenants that have been drafted but not finalized; one for the landfill itself and the
other for the surrounding sports facility. Both have been have put on hold due to the uncertainty of future
land use. This might have to be re-visited since to the land-use issues have changed.

Examples of proposed future landfill land-use include: RV park, solar panels; motorcross track.
The Parks Department want to be able to increase sports facility, RV parks and provide more amenities;
including potential for a 24-hr custodian to live on-site.

The State put on hold due to the future uses that may impact the landfill.

However, City of Fresno controls the land; and the future uses provide no issues with protecting the
remedy.

Currently a groundwater well prohibition and well assessment concept is in place. That is, if a well is
proposed in the well prohibition area, then no installation of well can occur. If the well is proposed in the
well assessment area; depending of the type of well, an assessment is performed of the well design. This
requires coordination with City of Fresno and Fresno County but no ordinance in place. The County is
the well permitting agency for the area outside the sports complex). The County permitter will flag a well
permit request to coordinate with City. The City will ask CDM to quickly review the well design.

Regarding institutional controls, CDM needs to conduct modeling to update the boundaries of the 2 well
zones. This includes an update of the tech memo that outlines this concept and provides a generic design
appropriate for new wells in the assessment zone.

I would like to see a more formal process like a Memorandum of Understanding between the City and
County in case new people who are not familiar with the current system are brought on. The system in
places works but it would be better to have something formal in place.

A supplemental risk assessment was performed to address potential future use of RV parking and fishing
in the lake. Fishing in the lake was the most important use. The original risk assessment assumed no
land use at the landfill or surrounding facility.
7. Would you say that O&M and/or sampling efforts have been optimized? Please describe how
improved efficiency has or has not occurred.

Response:
For O&M, the City needs a way to maintain a backup for data that isn’t susceptible to theft; better records
management. The groundwater data is well maintained. The groundwater monitoring program has a
protocol to optimize monitoring; Presently CDM provides input when optimization of the monitoring
program should occur in the annual reports. This is a dynamic effort. Groundwater monitoring is where
there’s optimization potential.
8. Are you aware of any ongoing community concerns regarding the site or its administration?

Response:
Not aware of any on-going community concerns. The parks and recreation department people see the site
as underused. There are no concerns about the site. George indicated that there has been tension between
the City and County. I have not received calls from people really concerned about the site.
9. Are you aware of any events, incidents, or activities that have occurred at the site, such as
dumping, vandalism, trespassing, or emergency response from local authorities?

Response:
I was recently made aware of a break-in and on-going acts of vandalism on the site.
10. Do you have any comments, suggestions, or recommendations regarding the site?

Response:
Records maintenance and records management and ensuring that data is backed up is important. In
general, the PRP is responsive and they are concerned.
Five-Year Review Interview Record                Interviewee:
                                                 Daniel Carlson
                                                 Regional Water Quality Control Board
                                                 (559) 444-2484
Site Name                                        EPA ID No.                          Date of     Interview
                                                                                     Interview   Method
Fresno Municipal Sanitary Landfill               CAD98036914                         3/25/10     Phone
                                                                                                 Fax/Email
                                                                                                 In person

Interview      Organization       Phone          Email                               Address
Contacts
ZiZi Searles   US EPA Region 10   415.972.3178   searles.zizi@epa.gov                75 Hawthorne St
                                                                                     San Francisco, CA 94105
Marlowe        USACE, Seattle     206.764.4480   Marlowe.d.laubach@usace.army.mil    4735 E Marginal Way S,
Laubach                                                                              Seattle, WA 98134
Rick           USACE, Seattle     206.764.3312   Richard.o.garrison@usace.army.mil   4735 E Marginal Way S,
Garrison                                                                             Seattle, WA 98134

Interview Questions
1. What is your relationship to the site? What is your overall impression of the work conducted at
the site to date? (general sentiment)

Response:
I am the Regional Water Control Board staff member for the project; similar to a Project Manager. I am
relatively new to the project since March/April 2009. Things have been going well.
2. Do you feel well informed about the site’s activities and progress?

Response:
Yes. I have been contacted by City of Fresno/CDM and reports were submitted to me even during the
transition from my predecessor.
3. Have there been routine communications or activities (site visits, inspections, reporting activities,
etc.) conducted by your office regarding the site? If so please give purpose and results.

Response:
No. Just the pre-FYR site visit. I perform a periodic review of the monitoring reports every 6 months.
4. Is the remedy functioning as expected? How well is the remedy performing?

Response:
Generally, yes. The conditions are changing due to the regional drop in groundwater levels. Anxious to
see the Phase 2 evaluation report regarding the B-aquifer extraction and the sampling results from the
larger sampling effort.
5. What does the monitoring data show? Are there any trends that show contaminant levels are
decreasing? Have any new or emerging COCs been identified? If so, have they impacted the
effectiveness of the remedy?

Response:
In reviewing the historic data, the A-aquifer treatments have had a positive impact; seen a decrease in
TCE and the associated daughter products. Interesting to note the decrease in water level and increase
contaminant concentrations in the B-aquifer. This may be due to the drawback between aquitards. Some
wells are sampled once per year. May require an increase frequency in certain wells. Wells CDM-4C
and CMD-8C have seen an increase in concentrations. We don’t know the competence of the aquitard
between B-aquifer and C-aquifer. From a previous report, B aquitard is leaky from the A-aquifer to the
B-aquifer. The competence of the aquitard between B-aquifer and C-aquifer needs to be evaluated further
and possibly addressed.

I am aware of no identified for new or emerging COC for the site.
6. Are you aware of any institutional controls, site access controls, new ordinances in place,
changes in actual or projected land use, complaints being filed or unusual activities at the site? If
so please describe in detail.

Response:
I am aware only of the well permitting restrictions put in place. Land-use covenant/restriction discussions
are on-going. I am not aware of any State requirements regarding land-use covenant.
7. Would you say that O&M and/or sampling efforts have been optimized? Please describe how
improved efficiency has or has not occurred.

Response:
The plant appears to be optimized. Sampling frequency and number of analytes have decreased for some
wells. The interim reports are sent electronically which provides efficiency of distributing data for CDM.
8. Are you aware of any ongoing community concerns regarding the site or its administration?

Response:
No.
9. Are you aware of any events, incidents, or activities that have occurred at the site, such as
dumping, vandalism, trespassing, or emergency response from local authorities?

Response:
No.
10. Please state what you know about the history of the site from your predecessor Bruce Meyers?

Response: Bruce left before I came on board. Cara Mattson was my predecessor and participated in
various calls. She left in March 2009.
11. From RWQCB perspective what are the major protectiveness issues of concern at the Landfill?

Response: Primarily, the groundwater quality issues. We need to make sure that we continue to monitor
the regional groundwater levels and how it affects the migration of the contaminants and the groundwater
system. This will be an on-going issue. I am more concerned with the groundwater treatment and the
model used to predict the groundwater migration.

Landfill gas issues are important including impacts to the groundwater are through the vadose zone via
landfill gas and any potential drainage issues due to surface water infiltration.
12. Do you have any comments concerning future land use at the Landfill?

Response: This depends on the future activities and how these activities would impact the groundwater
treatment/remediation.
13. Do you have any comments, suggestions, or recommendations regarding the site?

Response:
No.
Five-Year Review Interview Record                Interviewee:
                                                 Jeff Garner
                                                 City of Fresno
                                                 559-498-1426
Site Name                                        EPA ID No.                          Date of     Interview
                                                                                     Interview   Method
Fresno Municipal Sanitary Landfill               CAD98036914                         3/30/10     Phone
                                                                                                 Fax/Email
                                                                                                 In person

Interview      Organization       Phone          Email                               Address
Contacts
ZiZi Searles   US EPA Region 10   415.972.3178   Searles.zizi@epa.gov                75 Hawthorne St
                                                                                     San Francisco, CA 94105
Marlowe        USACE, Seattle     206.764.4480   Marlowe.d.laubach@usace.army.mil    4735 E Marginal Way S,
Laubach                                                                              Seattle, WA 98134
Rick           USACE, Seattle     206.764.       Richard.e.garrison@usace.army.mil   4735 E Marginal Way S,
Garrison                                                                             Seattle, WA 98134

Interview Questions
1. What is your relationship to the site? What is your overall impression of the work conducted at
the site to date? (general sentiment)

Response:
I am the plant operator/maintenance mechanic water systems operator.
I think that work has been satisfactory. I do all the work and it’s a great job and I think we are doing a
great job with the landfill remediation.
2. Do you feel well informed about the site’s activities and progress?

Response:
Yes. George [Slater] comes by every day.
3. Have there been routine communications or activities (site visits, inspections, reporting activities,
etc.) conducted by your office regarding the site? If so please give purpose and results.

Response:
NA.
4. Is the remedy functioning as expected? How well is the remedy performing?

Response:
Occasionally equipment breaks down; blowers for the gas collection broke down due to bearings
requiring replacement last year. I typically replace bearings every 2 years. Condensate carryover
corroded the bearings. Subsidence on the landfill created a water trap in the gas system. I had to raise the
gas extraction wellheads due to the subsidence. Gas header had to be exposed due to the subsidence.
Replaced the chlorine pump 3 weeks ago because it had a leak. When we painted the flare, the flare was
down for 2 weeks but the bypass system was in place. This is the only time the gas system was down for
a long period of time.

Remedy is still performing.

Related to the drop in the water levels, were there any problems that came up?
Response: A-wells are not pumping. The water levels are too low for the A well pumps. Extraction rates
for the various extraction wells are:
B-wells: 115-130 gallons per minute (gpm) (1B and 4B)
A-well 3A2: 30 gpm
Packed Tower Treatment Capacity: 3000 gpm
5. What does the monitoring data show? Are there any trends that show contaminant levels are
decreasing? Have any new or emerging COCs been identified? If so, have they impacted the
effectiveness of the remedy?

Response:
No new or emerging COCs that I know of. Semi-annual reports are compiled from CDM and analytical
lab results. Trend plots show a decrease. Over the last 5 years, looks likes decreases [in contaminants].
6. Are you aware of any institutional controls, site access controls, new ordinances in place,
changes in actual or projected land use, complaints being filed or unusual activities at the site? If
so please describe in detail.

Response:
Some vandalism – graffiti on the outside wall [of the treatment plant facility]; nothing within the walls.
Some theft: About 6 months ago laptop and tools [were stolen]. [Thieves] broke into the sample trailer
and stole about $10,000 of sampling equipment – pump regulator, water quality meter, sounding tape, and
regulator for the sample bottles, hand tools and vehicle. The parks department had 4 Kawasaki Mules
stolen. 24 hr security would be helpful or security cameras. [This is something that should be mentioned
in the] institutional controls discussion. [Theft and vandalism has occurred] within the last 5 years.
Several instances include 4 break-ins into the plant area; thieves cut the lock to the park from the farmer’s
property; the plywood lids for the gas well heads on top of the landfill were stolen; vandalized the
sprinkler heads and well heads by [hitting them]. The sprinkler system is currently not in use; this was
just used to water the seed on the landfill during closure. Everything [the thefts] has been reported to the
police. All [stolen] equipment is replaced in a timely manner. [The thefts] did not affect the remediation.
Plywood lids not locked. I think the landfill should be closed to public – due to the landfill subsidence
and the squirrel/jack rabbit’s holes that provide a hazard. An occasional coyote will also den in the holes.

The lake was recently stocked with fish. No problems associated with the fishing. The parks department
provide maintenance.
7. Would you say that O&M and/or sampling efforts have been optimized? Please describe how
improved efficiency has or has not occurred.

Response:
CDM eliminated/decreased the frequency of wells due to the low VOCs. The plant runs pretty well. The
gas quality is good. The flare bypass allows the groundwater treatment plant to continue operating while
the flare is down.
8. Are you aware of any ongoing community concerns regarding the site or its administration?

Response:
Residential wells are sampled once a year within the last 2 years. Sampled [the residential wells] bi-
annually previously. The residents are concerned [about their water]. The residents] have a reverse
wellhead system on the wellhead and bottled water. [I] sample before the reverse wellhead system but
it’s unknown if sampling is performed after the system. [Address] 2429 N Ave gets a hit; [this residence
is] down stream from project. [At] 2429 N Ave, TCE is detected. [This] should be in the last annual
report.
9. Are you aware of any events, incidents, or activities that have occurred at the site, such as
dumping, vandalism, trespassing, or emergency response from local authorities?
Response:
Dumping has occurred on West Ave until signs prohibiting dumping [were put up]. [Dumping occurred]
once every 3 months [after the signs] and weekly before the signs. The parks department takes care of
trash. We called the police when we were broken into. An ambulance came out once due to the parks
guys; not related to remediation.
10. Does methane monitoring take place on the landfill cap?

Response:
I monitor all the [gas extraction] wells once a month (including perimeter probes). There shouldn’t be
any release of the methane because of the vacuum [on the landfill cap].
11. Can you state the rate and timeframe of landfill subsidence?

Response:
[The subsidence] started 3 years ago and gradually got worse. Minor subsidence on the west side and top.
A couple pockets [of subsidence] starting on top
12. Do you have any comments concerning future land use at the landfill?

Response:
The subsidence issues; [potential] caving in [of the cap]; the holes in the landfill. [I am] concerned that
people may trip and fall. The parks department has future plans for the park. Having the plans for
recreation on landfill is not [a good thing]. Access to the landfill should be restricted to the public.
13. Do you have any comments, suggestions, or recommendations regarding the site?

Response:
No other comments.
Five-Year Review Interview Record                Interviewee:
                                                 Jim Rohrer
                                                 California Department of Toxic Substances Control
                                                 916-255-3709
Site Name                                        EPA ID No.                          Date of     Interview
                                                                                     Interview   Method
Fresno Municipal Sanitary Landfill               CAD98036914                         3/29/10     Phone
                                                                                                 Fax/Email
                                                                                                 In person

Interview      Organization       Phone          Email                               Address
Contacts
ZiZi Searles   US EPA Region 10   415.972.3178   Searles.zizi@epa.gov                75 Hawthorne St
                                                                                     San Francisco, CA 94105
Marlowe        USACE, Seattle     206.764.4480   Marlowe.d.laubach@usace.army.mil    4735 E Marginal Way S,
Laubach                                                                              Seattle, WA 98134
Rick           USACE, Seattle     206.764.       Richard.e.garrison@usace.army.mil   4735 E Marginal Way S,
Garrison                                                                             Seattle, WA 98134

Interview Questions
1. What is your relationship to the site? What is your overall impression of the work conducted at
the site to date? (general sentiment)

Response:
I am the new project manager for DTSC. I spent 11 years in the geologic unit. My initial impression is
that a lot of good work done.
2. Do you feel well informed about the site’s activities and progress?

Response:
Yes.
3. Have there been routine communications or activities (site visits, inspections, reporting activities,
etc.) conducted by your office regarding the site? If so please give purpose and results.

Response:
Site activities: 5 year review site inspection, spoke to EPA Patricia Bowlin to get up to speed. I am too
new to see if I am getting enough information.
4. Is the remedy functioning as expected? How well is the remedy performing?

Response:
I am still learning about the site. I am wondering if continued subsidence will continue to occur as part of
gas extraction.

The new groundwater extraction well effectiveness is currently being evaluated. So how affective the
remedy is at this time.
5. What does the monitoring data show? Are there any trends that show contaminant levels are
decreasing? Have any new or emerging COCs been identified? If so, have they impacted the
effectiveness of the remedy?

Response:
I went through the concentration tables; the following is my initial assessment.
The concentrations in the A-zone wells decreased. Cis-DCE was detected in well PW-4B.
Monitoring wells CDM-6A andCDM-5B show an increase in concentrations.
Monitoring well CDM 4B show that PCE decreased but still high concentrations.
See a decrease in well PZ-5C.
Monitoring well CDM-5C results show PCE concentrations increased over the last 5 years.
Monitoring well CDM-4C results show TCE and cis-DCE concentrations have increased in the last 5
rounds
PCE concentrations increased in monitoring well DW-1C.

No new or emerging COCs.
6. Are you aware of any institutional controls, site access controls, new ordinances in place,
changes in actual or projected land use, complaints being filed or unusual activities at the site? If
so please describe in detail.

Response:
No. Not aware of any institutional controls in place. Regarding the institutional controls, I spoke to a
DTCS attorney regarding the [draft] land use covenant. It specifies that no residents, no hospitals, no
daycare, public/private school with people under 21 can be located on site.

House on property may be able to [be] used for parks department. Should be able to use to if no full-time
residence; more of a watchman.
7. Would you say that O&M and/or sampling efforts have been optimized? Please describe how
improved efficiency has or has not occurred.

Response:
Not familiar enough of the site to know. May need to consider to sampling the condensate before
discharge.
8. Are you aware of any ongoing community concerns regarding the site or its administration?

Response:
No.
9. Are you aware of any events, incidents, or activities that have occurred at the site, such as
dumping, vandalism, trespassing, or emergency response from local authorities?

Response:
No.
10. Do you have any comments, suggestions, or recommendations regarding the site?

Response:
No.
11. Please state what you know about the history of the site from your predecessor Emanuel
Mensah?

Response:
Nothing. I spoke to Larry and Patricia [Bowlin, EPA] for the site history. I reviewed a report from
Emanuel a long time ago.
12. From DTSC’s perspective what are the major protectiveness issues of concern at the Landfill?

Response:
The following are protectiveness issues of concern:
Potential contaminated stormwater runoff into the East Basin.
Condensate [from the gas wells] should be sampled before discharge into the sanitary sewer.
There should be a land use covenant for landfill. A land use covenant for the sport facility may not be
required.
The subsidence may compromise the landfill gas removal and LFG removal may be the cause for the
subsidence.
13. Do you have any comments concerning future land use at the Landfill?

Response:
A motorcross track on the landfill is probably not a good idea.
An RV park on the landfill probably not a good idea. We need to consider what qualifies the RV user as
a resident.
Five-Year Review Interview Record                Interviewee:
                                                 George Slater
                                                 City of Fresno
                                                 (559) 960-8049
Site Name                                        EPA ID No.                          Date of     Interview
                                                                                     Interview   Method
Fresno Municipal Sanitary Landfill               CAD98036914                         3/25/10     Phone
                                                                                                 Fax/Email
                                                                                                 In person

Interview      Organization       Phone          Email                               Address
Contacts
ZiZi Searles   US EPA Region 10   415.           searles.zizi@epa.gov                75 Hawthorne St
                                                                                     San Francisco, CA 94105
Marlowe        USACE, Seattle     206.764.4480   marlowe.d.laubach@usace.army.mil    4735 E Marginal Way S,
Laubach                                                                              Seattle, WA 98134
Rick           USACE, Seattle     206.764.       richard.e.garrison@usace.army.mil   4735 E Marginal Way S,
Garrison                                                                             Seattle, WA 98134

Interview Questions
1. What is your relationship to the site? What is your overall impression of the work conducted at
the site to date? (general sentiment)?

Response:
Project Manager/Coordinator for the City of Fresno since 1990. Oversee the day-to-day operations; order
materials.

Good impression of the work that has been performed to date. The remedy in place has been effective.
2. Do you feel well informed about the site’s activities and progress?

Response:
Yes. The involvement in the day-to-day operations; the testing, sampling, reports produced provide
information of the activities and progress.
3. Have there been routine communications or activities (site visits, inspections, reporting activities,
etc.) conducted by your office regarding the site? If so please give purpose and results.

Response:
Yes.
4. Is the remedy functioning as expected? How well is the remedy performing?

Response:
Interpretation of the remedy intent: perform activities designed to protect human health. The remedy is
working to meet this intent.

Due to the drought conditions, water levels have decreased in the A-aquifer. However data shows
reduced contamination in the A-aquifer and A-aquifer plume has diminished. Remedy is performing as
intended.
5. What does the monitoring data show? Are there any trends that show contaminant levels are
decreasing? Have any new or emerging COCs been identified? If so, have they impacted the
effectiveness of the remedy?
Response:
Monitoring data show mixed results in the B-aquifer and C-aquifer. Increased concentrations in some
areas; decreased concentrations in others. For example, monitoring wells CDM-4, CDM-5, and CDM-8.

CDM-4 and CDM-5 have seen an increase in VOC concentrations; where CDM-8 has seen decreased
concentrations. CDM- 8 lies between CDM-4 and CDM-5. Maybe the lake has an influence?

2 years ago a wide variety of sampling occurred to determine the presence of any new or emerging COCs.
Data would be in Spring 2007 or Spring 2008. The sampling was performed in response to EPA concern.
6. Are you aware of any institutional controls, site access controls, new ordinances in place,
changes in actual or projected land use, complaints being filed or unusual activities at the site? If
so please describe in detail.

Response:
No. Have the agreement re: well drilling with Fresno County on nearby residential and agricultural wells.
The process includes review the well design by the City of Fresno. Any additional costs to drill well per
requirements will be paid by the City of Fresno. For example, a residential well was drilled within the
last year. The design showed they would be drilling to 200 ft. The City required them to seal the well to
100 ft.

Site access: The site is fenced (sports facility and landfill). No fence between the sport facility and
landfill. Park is open until 10 pm and park personnel are on site during park hours. No projected land use
changes. The parks department includes me in meetings regarding land use.

No complaints have been filed.
7. Would you say that O&M and/or sampling efforts have been optimized? Please describe how
improved efficiency has or has not occurred.

Response:
The operation and sampling efforts are a changing event over time. Depending on the conditions at the
site, the number of sampling and frequency change. Reduction of frequency and number of sampling
points increases efficiency.

Have conducted an optimization study in the past. Any proposed changes in the sampling efforts will be
in the upcoming Phase 2 evaluation report. Regarding optimization of the groundwater treatment plant:
The amount of chemical chlorine and anti-scalant used in the packed tower can be optimized. Anti-
scalant manufacturer rep (U.S. Waters) assists with optimizing the anti-scalant injection quantity.
8. Are you aware of any ongoing community concerns regarding the site or its administration?

Response:
No. Try to keep the neighbors aware of the site.
9. Are you aware of any events, incidents, or activities that have occurred at the site, such as
dumping, vandalism, trespassing, or emergency response from local authorities?

Response:
No.
10. Does methane monitoring take place on the landfill cap?

Response: No background methane monitoring occurs. My understanding is that methane monitoring is
performed on active landfills.
11. Can you state the rate and timeframe of landfill subsidence?

Response: The subsidence has occurred over the last 4 years. In the beginning, a little settlement was
observed. As time proceeded, the settlement increased. For the landfill regrade project, 6 noted areas
will be addressed. Average settlement at the top of the landfill 18” over the last 10 years.

12. Under what circumstances is the LFG flare system bypassed? Are there any risks associated
with this bypassing?

Response: The LFG flare is bypassed if maintenance is required on the flare or the gas collection system.
Bypass involves just direct emissions from the packed tower.

Regarding risks associated to this bypass, when applied to air board, we were told we could vent up to 2
lbs/day and notify EPA when this occurred. Current emissions are only 0.2 lb/day.

The bypass has existed for only 2 years. Generally, the bypass is used for only a few hours. Only once
was the flare down for a day or two.
13. Do you have any comments, suggestions, or recommendations regarding the site?

Response: No.
Five-Year Review Interview Record                Interviewee:
                                                 Yash Nyznyk
                                                 CDM
                                                 925-296-8065
Site Name                                        EPA ID No.                          Date of     Interview
                                                                                     Interview   Method
Fresno Municipal Sanitary Landfill               CAD98036914                         3/29/10     Phone
                                                                                                 Fax/Email
                                                                                                 In person

Interview      Organization       Phone          Email                               Address
Contacts
ZiZi Searles   US EPA Region 10   415.972.3178   Searles.zizi@ epa.gov               75 Hawthorne St
                                                                                     San Francisco, CA 94105
Marlowe        USACE, Seattle     206.764.4480   Marlowe.d.laubach@usace.army.mil    4735 E Marginal Way S,
Laubach                                                                              Seattle, WA 98134
Rick           USACE, Seattle     206.764.       Richard.o.garrison@usace.army.mil   4735 E Marginal Way S,
Garrison                                                                             Seattle, WA 98134

Interview Questions
1. What is your relationship to the site? What is your overall impression of the work conducted at
the site to date? (general sentiment)

Response:
[I] worked on the site for 18 years; involved with the remedial investigation, feasibility study, remedial
design, remedial action (RA) and operations and maintenance.

[My impression of] OU1: Landfill closure construction/design went pretty well. Currently dealing with
subsidence, which is not unusual.

[My impression of] OU2: Fairly well until the decline in the water level in the A-aquifer.
2. Do you feel well informed about the site’s activities and progress?

Response:
Yes. CDM issues the reports on behalf of the City of Fresno. The design [of the treatment plant] for OU-
2 was by Geosyntech; [they were] involved during meetings. CDM has been continuously involved
because of the on-going OU-2 remedial action. We are moving forward on the remedial action
implementation.
3. Have there been routine communications or activities (site visits, inspections, reporting activities,
etc.) conducted by your office regarding the site? If so please give purpose and results.

Response:
Routine communications. We [provide] quarterly reports; [they] had been monthly. Annual groundwater
monitoring reports are submitted in July of each year. Periodic calls, project data calls, have not been
frequent (1 or 2 per year). [The frequency of calls] depends on the level of activity. As we begin to
prepare the Phase 2 evaluation, I suspect a higher level of activity.

[The meetings are sometimes] driven by event, if EPA requests.
4. Is the remedy functioning as expected? How well is the remedy performing?

Response:
OU-1: This element of remedy is functioning very well. This influences the OU-2 remedy. [The OU-1
remedy] eliminated infiltration into waste, eliminated the migration of contaminants into groundwater.
The landfill gas system is functioning well. Clearly, there is subsidence.

Is there periodic monitoring of Landfill?
Response: Know that operating landfill has a surface monitoring requirement. Unknown if there’s
requirement for closed landfills. During the initial subsidence did some monitoring; measuring extent of
subsidence and methane monitoring. Cap was intact even though vegetative cover showed subsidence.
No methane detected.

OU2: Phased RA. The feasibility assumed pump and treat system. Phase 1: hydraulic control of
perimeter. Phase 2: control around the plume boundary; Phase 3: restore aquifer. After Phase 1
evaluation; escape of contaminants beyond the plume; [via] vertical migration downward and outward;
Under Phase 2, changed the nature [of the RA] from just A-aquifer [action] to mitigate observations from
the Phase 1 evaluation.

In the A-aquifer: [the remedy is in control; shown by] decreases[of] contamination in the A wells; either
stable or decreasing. Well CDM-6A concentrations for PCE increasing had been below MCLs. Now no
water in CDM-6A.

Migration of contaminants into the B-aquifer. The new B extraction wells may remedy this. Phase 3 may
not be required if the goal can be achieved by Phases 1 and 2.

Hydraulic control has been established for many years. The concentrations have been controlled/reduced
in the Phase 1. Think this has continued even though the drop in water levels.
5. What does the monitoring data show? Are there any trends that show contaminant levels are
decreasing? Have any new or emerging COCs been identified? If so, have they impacted the
effectiveness of the remedy?

Response:
Monitoring data show improvements in concentrations in A-aquifer. Decreasing or stable.
B-aquifer – wells show stable or decreasing concentrations in 14 wells and 7 wells showing increasing
concentrations (Downgradient wells (CDM-4, CDM-5, and CDM-8) and plume boundary (CDM-3,
CDM-16, CDM-17, and CDM-18)).

There appears to be a northern lobe and a southern lobe of contamination. A couple wells in the north
and 3 wells in the south, CDM-4, CDM-5 increasing. CDM-8.
In the Phase 1 evaluation, it appeared to be a plug moving away from the landfill however that plug has
decreased.

[Extraction wells] PW1-B and PW4-B were installed to address these zones in the B-zone.
There are a limited number of wells in the B-zone. The groundwater contour maps [presented in the
reports] are contoured by hand.

Part of Phase 1, in addition to extraction along the perimeter, was the decommissioning agricultural wells.
Agricultural well, I5, was located between CDM-5 and CDM-8. Agricultural well, I4 was located very
close to CDM-5. One of the wells was open bottomed with some screening and shallower than initially
thought. There was info that water was being pulled from the A-aquifer. The sealing of the [agricultural]
wells was probably not done as these were installed many years ago. These [agricultural] wells were
decommissioned. I4 went through the A aquitard to B aquitard. Migration [of contaminants] has not
necessarily gone down and out. Likely outward migration [of contaminants] occurred which was pulled
down by the extraction wells and then outward.

Has the contaminant migration changed since the decommissioning? Yes, decommissioning of the
irrigation wells eliminated contaminant migration in the A-zone. A lot of pumping from the B –aquifer
that goes on in the region from lower zones. Phase 2 evaluation will show that there’s some hydraulic
control in the B-zone.

About 4 years ago, we looked at emerging COCs per EPA request. [Results] showed none detected.
6. Are you aware of any institutional controls, site access controls, new ordinances in place,
changes in actual or projected land use, complaints being filed or unusual activities at the site? If
so please describe in detail.

Response:
Complaints/unusual activity: No
Institutional controls: City is in negotiations with EPA regarding deed restrictions. One for landfill and
one for [the area] outside of landfill. Irrigation wells are prevented from installation within a certain
footprint. CDM has assisted with the evaluation of wells to be installed.

[Fresno] County has identified zones (well prohibition and well assessment). If there is a request for a
well in prohibition zone, no well installation is allowed. If request in a well assessment zone, then county
notifies the City [of Fresno]. City has CDM evaluate the design including the depth of well. The well
may require double casing to seal the well through the A/B aquitard and be drilled beneath the aquitard.
7. Would you say that O&M and/or sampling efforts have been optimized? Please describe how
improved efficiency has or has not occurred.

Response:
Optimization: The performance monitoring program (groundwater treatment plant and extraction wells)
has been optimized. When a well has been non-detect for multiple quarters, we consider reducing
frequency at the well (quarterly, semi-annual, and annual sampling are included in our typical monitoring
program). Monitoring frequency is assessed annually.

Groundwater treatment plant optimization: Treatment plant optimization should be included in the annual
report. Rehab of extraction wells (the wells went through rehab last year which coincided with lower
groundwater). No changes to treatment plant performance. Treatment of the packing (acid treatment)
may be optimized. The treatment includes anti-scalant (to prevent chemical precipitation) and sodium
hypochlorite (to prevent biofouling).

Are there opportunities for green options? The orientation of building, windows of the building on
north side providing no direct sun, lowers energy usage. Green opportunities are worthwhile to consider
by the City.
8. Are you aware of any ongoing community concerns regarding the site or its administration?

Response:
I am not.
9. Are you aware of any events, incidents, or activities that have occurred at the site, such as
dumping, vandalism, trespassing, or emergency response from local authorities?

Response:
I am not.
11. Please comment on how subsidence (if not addressed) can impact the remedy. Generally
describe the upcoming grading project and the anticipated result?

Response:
We prepared the 100% design for City review. Received comments and will submit 100% plans and
specifications for construction in April. The construction is anticipated to begin late summer/early fall.
This will bring the areas of subsidence back to original grade. In the drainage ditch, [the project includes
the] replacement of the membrane liner and repair of flexible drainage sump on the east side [of the
landfill]. On the west side subsidence is less, [so the project will require] just re-grading and re-seeding.
A timber retaining wall will be replaced near the storm water control system (east of the treatment plant
control building).
12. Pending an official report how has the dropping of the regional water table impacted the
remedy? How does such a drop affect distribution of contaminants in the underlying aquifer? Is
there potential for contaminant migration to the lowest aquifer? Has the decrease in water levels
increased the concentration of VOC soil vapors? Is there potential for VOC soil vapor seepage in
the future? If so are there plans to monitor for that?

Response:
Potential contamination into the C-aquifer.

Monitoring wells CDM-4C and CDM-8C show increasing concentrations. Six (6) C-zone wells have
exhibited stable concentrations.

Methane monitoring required at the perimeter and is on-going.
10. Do you have any comments, suggestions, or recommendations regarding the site?

Response:
None.
             Attachment 6
Groundwater VOC Concentration Trend Plots
[This page intentionally left blank]
                       Analytical Concentration: PW-1A in ug/l                                        Analytical Concentration: PW-2A in ug/l
140                                                                               20
                                              TETRACHLOROETHENE                   18
120
                                              CIS-1,2-DICHLOROETHENE              16
100                                           VINYL CHLORIDE
                                                                                  14
                                              TRICHLOROETHENE
 80                                                                               12
                                                                                  10
 60
                                                                                   8

 40                                                                                6
                                                                                   4
 20
                                                                                   2
 0                                                                                 0




                                                80
                                                                   Analytical Concentration: PW-5A in ug/l

                                                70

                                                60

                                                50

                                                40

                                                30

                                                20

                                                10

                                                 0




                                                                                                                                        Figure C-1
Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                      VOC Concentration Trend Plots
                                                                                                                       Groundwater Extraction Wells
                                                                                                                              West Side of Landfill
                             Analytical Concentration: PW-3A2 in ug/l                                   Analytical Concentration: PW-4A in ug/l
     60                                                                            250
                                                         TETRACHLOROETHENE
                                                         CIS-1,2-DICHLOROETHENE
     50
                                                                                   200
                                                         VINYL CHLORIDE

     40                                                  TRICHLOROETHENE
                                                                                   150
     30
                                                                                   100
     20

                                                                                    50
     10


      0                                                                              0




                                                                                  Note: Extraction well PW-4A was not sampled in 2008.
  Note: Extraction well PW-3A2 samples prior to 4/2009 came from extraction
  well PW-3A. Due to low yield in 2006 PW-3A was converted to a monitoring
  well. In 2008 PW-3A2 was installed. Neither PW-3A nor PW-3A2 were
  sampled 2007 and 2008. and PW-4A Not Sampled in 2008




                                                                                                                                               Figure C-2
Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                             VOC Concentration Trend Plots
                                                                                                                              Groundwater Extraction Wells
                                                                                                                                 Southwest Side of Landfill
                        Analytical Concentration: CDM-12A in ug/l                      Analytical Concentration: PZ-5A in ug/l
 350                                                                             450
                                                                                 400                     TETRACHLOROETHENE
 300
                                                                                                         CIS-1,2-DICHLOROETHENE
                                                                                 350
 250                                                                                                     VINYL CHLORIDE
                                                                                 300
                                                                                                         TRICHLOROETHENE
 200                                                                             250

 150                                                                             200
                                                                                 150
 100
                                                                                 100
  50
                                                                                  50
   0                                                                               0




                        Analytical Concentration: CDM-13A in ug/l                      Analytical Concentration: CDM-15A in ug/l
  300                                                                            200
                                                                                 180
  250                                                                            160
                                                                                 140
  200
                                                                                 120

  150                                                                            100
                                                                                  80
  100                                                                             60
                                                                                  40
   50
                                                                                  20

    0                                                                              0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                         Figure C-3
                                                                                        A-Aquifer Monitoring Wells - Extraction Zone
                      Analytical Concentration: W-4 in ug/l                                       Analytical Concentration: W-5 in ug/l
200                                                                              40
180
                                          TETRACHLOROETHENE                      35
160
                                          CIS-1,2-DICHLOROETHENE                 30
140
                                          VINYL CHLORIDE
120                                                                              25
                                          TRICHLOROETHENE
100                                                                              20
80
                                                                                 15
60
                                                                                 10
40
20                                                                                5
  0                                                                               0




                                                                 Analytical Concentration: W-6 in ug/l
                                            3

                                           2.5

                                            2

                                           1.5

                                            1

                                           0.5

                                            0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                                   Figure C-4
                                                                                                                 VOC Concentration Trend Plots
                                                                                                                    A-Aquifer Monitoring Wells
                      Analytical Concentration: MW-1 in ug/l                          Analytical Concentration: PZ-2A in ug/l
200                                                                              60
                                                      TETRACHLOROETHENE

180                                                   CIS-1,2-DICHLOROETHENE

                                          TETRACHLOROETHENE
                                                   VINYL CHLORIDE                50
160                                                   TRICHLOROETHENE
                                          CIS-1,2-DICHLOROETHENE
140                                                                              40
                                          VINYL CHLORIDE
120
                                          TRICHLOROETHENE
100                                                                              30
80
                                                                                 20
60
40
                                                                                 10
20
  0                                                                               0




                      Analytical Concentration: MW-2 in ug/l
                                                                                      Analytical Concentration: CDM-6A in ug/l
60
                                                                                  6

50
                                                                                  5

40
                                                                                  4

30
                                                                                  3

20
                                                                                  2

10
                                                                                  1

 0
                                                                                  0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                        Figure C-5
                                                                                                      VOC Concentration Trend Plots
                                                                                                         A-Aquifer Monitoring Wells
                     Analytical Concentration: CDM-4A in ug/l                                    Analytical Concentration: CDM-5A in ug/l
35                                                                               35
                                         TETRACHLOROETHENE
30                                                                               30
                                         CIS-1,2-DICHLOROETHENE
25                                       VINYL CHLORIDE                          25
20                                       TRICHLOROETHENE
                                                                                 20
15                                                                               15
10                                                                               10
5                                                                                5
0                                                                                0




                                                                Analytical Concentration: CDM-8A in ug/l
                                           6

                                           5

                                           4

                                           3

                                           2

                                           1

                                           0




                                                                                                                                    Figure C-6
                                                                                                               VOC Concentration Trend Plots
Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.                       A-Aquifer Monitoring Wells - Downgradient
                     Analytical Concentration: CDM-13B in ug/l                            Analytical Concentration: DW-1B in ug/l
                                                                                 300
18
16                                                                                                       TETRACHLOROETHENE
                                                                                 250
14                                                                                                       CIS-1,2-DICHLOROETHENE

12                                                                               200                     VINYL CHLORIDE
                                                                                                         TRICHLOROETHENE
10
                                                                                 150
 8
 6                                                                               100

 4
                                                                                 50
 2
 0                                                                                 0




                     Analytical Concentration: CDM-12B in ug/l                             Analytical Concentration: PZ-5B in ug/l
160                                                                              120

140
                                                                                 100
120
                                                                                  80
100

80                                                                                60

60
                                                                                  40
40
                                                                                  20
20

  0                                                                                0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.                                                Figure C-7
                                                                                                         VOC Concentration Trend Plots
                                                                                       Upper B-Aquifer Monitoring Wells - Extraction Zone
                     Analytical Concentration: CDM-13B2 in ug/l                                  Analytical Concentration: DW-1C in ug/l
10                                                                               35
9                                          TETRACHLOROETHENE
                                                                                 30
8                                          CIS-1,2-DICHLOROETHENE

7                                          VINYL CHLORIDE                        25
6                                          TRICHLOROETHENE
                                                                                 20
5
4                                                                                15
3                                                                                10
2
1                                                                                5

0                                                                                0




                                                                Analytical Concentration: PZ-5B2 in ug/l
                                          16

                                          14

                                          12

                                          10

                                           8

                                           6

                                           4

                                           2

                                           0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.                                                      Figure C-8
                                                                                                               VOC Concentration Trend Plots
                                                                                             Lower B-Aquifer Monitoring Wells - Extraction Zone
                     Analytical Concentration: DW-2B in ug/l                            Analytical Concentration: PZ-2B in ug/l
45                                                                               12
40           TETRACHLOROETHENE
                                                                                 10
35           CIS-1,2-DICHLOROETHENE

30           VINYL CHLORIDE                                                      8
25           TRICHLOROETHENE
                                                                                 6
20
15                                                                               4
10
                                                                                 2
5
0                                                                                0




                     Analytical Concentration: CDM-15B in ug/l                         Analytical Concentration: PZ-4B in ug/l
50                                                                           4.5
45
                                                                                 4
40
                                                                             3.5
35
                                                                                 3
30
                                                                             2.5
25
20                                                                               2

15                                                                           1.5
10                                                                               1
5                                                                            0.5
0                                                                                0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.                                               Figure C-9
                                                                                                        VOC Concentration Trend Plots
                                                                                      Upper B-Aquifer Monitoring Wells - Extraction Zone
                                                                                                               Northwest Side of Landfill
                       Analytical Concentration: PZ-4B in ug/l                             Analytical Concentration: CDM-15B in ug/l
4.5                                                                          50
            TETRACHLOROETHENE
 4                                                                           45
            CIS-1,2-DICHLOROETHENE
3.5                                                                          40
            VINYL CHLORIDE
                                                                             35
 3          TRICHLOROETHENE
                                                                             30
2.5
                                                                             25
 2
                                                                             20
1.5                                                                          15
 1                                                                           10
0.5                                                                              5

 0                                                                               0




                     Analytical Concentration: CDM-15B2 in ug/l                            Analytical Concentration: PZ-3B in ug/l
18                                                                               1.2

16
                                                                                     1
14
12                                                                               0.8

10
                                                                                 0.6
 8
 6                                                                               0.4

 4
                                                                                 0.2
 2
 0                                                                                   0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.                                                 Figure C-10
                                                                                                           VOC Concentration Trend Plots
                                                                                         Lower B-Aquifer Monitoring Wells - Extraction Zone
                     Analytical Concentration: CDM-4B in ug/l                                   Analytical Concentration: CDM-5B in ug/l
90                                                                               50
          TETRACHLOROETHENE
80                                                                               45
          CIS-1,2-DICHLOROETHENE
70                                                                               40
          VINYL CHLORIDE
60                                                                               35
          TRICHLOROETHENE
                                                                                 30
50
                                                                                 25
40
                                                                                 20
30
                                                                                 15
20
                                                                                 10
10                                                                               5
0                                                                                0




                                                               Analytical Concentration: CDM-8B in ug/l
                                         30

                                         25

                                         20

                                         15

                                         10

                                          5

                                          0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                                   Figure C-11
                                                                                                               VOC Concentration Trend Plots
                                                                                                     B-Aquifer Monitoring Wells - Downgradient
                     Analytical Concentration: CDM-3B in ug/l                          Analytical Concentration: CDM-16B in ug/l
 5                                                                                 5
4.5                                                                              4.5
                TETRACHLOROETHENE
 4                                                                                 4
                CIS-1,2-DICHLOROETHENE
3.5                                                                              3.5
                VINYL CHLORIDE
 3                                                                                 3
                TRICHLOROETHENE
2.5                                                                              2.5
 2                                                                                 2
1.5                                                                              1.5
 1                                                                                 1
0.5                                                                              0.5
 0                                                                                 0




                     Analytical Concentration: CDM-17B in ug/l                         Analytical Concentration: CDM-18B in ug/l
 5                                                                                5
4.5                                                                              4.5
 4                                                                                4
3.5                                                                              3.5
 3                                                                                3
2.5                                                                              2.5
 2                                                                                2
1.5                                                                              1.5
 1                                                                                1
0.5                                                                              0.5
 0                                                                                0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                          Figure C-12
                                                                                                     VOC Concentration Trend Plots
                                                                                         B-Aquifer Monitoring Wells - Plume Boundary
                     Analytical Concentration: CDM-13C in ug/l                                Analytical Concentration: PZ-5C in ug/l
 3                                                                               16
              TETRACHLOROETHENE
2.5                                                                              14
              CIS-1,2-DICHLOROETHENE
              VINYL CHLORIDE                                                     12
 2
              TRICHLOROETHENE                                                    10
1.5                                                                              8

                                                                                 6
 1
                                                                                 4
0.5
                                                                                 2

 0                                                                               0




                                                                Analytical Concentration: CDM-15C in ug/l
                                            7

                                            6

                                            5

                                            4

                                            3

                                            2

                                            1

                                            0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.                                                     Figure C-13
                                                                                                              VOC Concentration Trend Plots
                                                                                                  C-Aquifer Monitoring Wells - Extraction Wells
                       Analytical Concentration: CDM-4C in ug/l                                Analytical Concentration: CDM-5C in ug/l
10                                                                                5
 9           TETRACHLOROETHENE                                                   4.5
 8           CIS-1,2-DICHLOROETHENE                                               4
 7           VINYL CHLORIDE                                                      3.5
 6           TRICHLOROETHENE                                                      3
 5                                                                               2.5
 4                                                                                2
 3                                                                               1.5
 2                                                                                1
 1                                                                               0.5
 0                                                                                0




                                                                Analytical Concentration: CDM-8C in ug/l
                                          14

                                          12

                                          10

                                           8

                                           6

                                           4

                                           2

                                           0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                                   Figure C-14
                                                                                                               VOC Concentration Trend Plots
                                                                                                     C-Aquifer Monitoring Wells - Downgradient
                     Analytical Concentration: CDM-18C in ug/l                               Analytical Concentration: CDM-17C in ug/l
 3
                                                                                 3

2.5                                        TETRACHLOROETHENE
                                                                             2.5
                                           CIS-1,2-DICHLOROETHENE
 2                                         VINYL CHLORIDE                        2

1.5                                        TRICHLOROETHENE
                                                                             1.5

 1                                                                               1

0.5                                                                          0.5

 0                                                                               0




                                                                Analytical Concentration: CDM-16C in ug/l
                                            3

                                          2.5

                                            2

                                          1.5

                                            1

                                          0.5

                                            0




Note: Open symbols indicate non-detect (ND) at the laboratory reporting limit.
                                                                                                                                   Figure C-15
                                                                                                              VOC Concentration Trend Plots
                                                                                                  C-Aquifer Monitoring Wells - Plume Boundary
           Attachment 7
      Data Summary Tables


Table A – Groundwater Depths
Table B – Groundwater Contaminant of Concern Concentrations
Table C – Landfill Gas Monitoring Data
Table D – Treatment Plant Influent and Effluent
Table E – Treatment Plant Operational Data
[This page intentionally left blank]
                                                                  Attachment 7, Table A. Groundwater Depths

                Monitoring
                Point                          Depth to                    Depth to                    Depth to                   Depth to                  Depth to                   Depth to
  Location ID   Elevation         Date          Water          Date         Water          Date         Water          Date        Water        Date         Water          Date        Water
CDM1A           269.83       10/11/05 16:30 68.63         1/23/06 8:27    67.21       4/18/06 16:38 66.99         7/21/06 0:00   65.13     10/31/06 6:58   67.47       1/26/07 0:00   68.09
CDM2A           265.79       10/11/05 11:00 67.13         1/23/06 9:08    64.90       4/18/06 16:10 64.65         7/21/06 0:00   65.10     10/31/06 7:00   65.13       1/26/07 0:00   64.18
CDM3A           262.14       10/11/05 11:56 64.54         1/23/06 9:30    62.82       4/18/06 15:45 62.72         7/21/06 0:00   61.79     10/31/06 0:00   61.76       1/26/07 0:00   61.90
CDM4A           261.55       10/11/05 14:05 63.29         1/23/06 10:06 61.35         4/18/06 15:33 61.26         7/21/06 0:00   62.02     10/31/06 0:00 60.33         1/26/07 0:00   60.73
CDM5A           265.9 (A)    10/11/05 12:26 66.45         1/23/06 9:50 64.95          4/18/06 15:12 65.49         7/21/06 0:00   67.80     10/31/06 0:00 65.05         1/26/07 0:00   65.55
CDM6A           266.68       10/11/05 13:45 66.22         1/23/06 13:52 64.30         4/18/06 8:06 64.59          7/21/06 0:00   64.80     10/31/06 0:00 64.86         1/26/07 0:00   66.20
CDM7A           268.52       10/11/05 12:35 67.10         1/23/06 8:16    65.34       4/18/06 16:50 65.67         7/21/06 0:00   65.63     10/31/06 0:00 65.6          1/26/07 0:00   67.90
CDM8A           261.59       10/11/05 14:02 62.94         1/23/06 9:56    61.12       4/18/06 15:21 61.03         7/21/06 0:00   62.26     10/31/06 0:00 60.62         1/26/07 0:00   61.00
CDM12A          258.33       10/11/05 14:49 60.23         1/23/06 12:46 58.24         4/18/06 10:16 58.17         7/21/06 0:00   59.23     10/31/06 0:00 58.25         1/26/07 0:00   58.03
CDM13A          258.56       10/11/05 15:14 60.05         1/23/06 12:56 58.02         4/18/06 10:06 57.96         7/21/06 0:00   58.87     10/31/06 0:00 58            1/26/07 0:00   57.76
CDM15A          265.30       10/11/05 13:50 65.21         1/23/06 13:40 63.43         4/18/06 8:19 63.64          7/21/06 0:00   65.28     10/31/06 0:00 63.8          1/26/07 0:00   64.80
CDM16A          262.54       10/11/05 11:30 64.90         1/23/06 9:22    63.15       4/18/06 15:56 63.04         7/21/06 0:00   63.89     10/31/06 0:00 62.76         1/26/07 0:00   62.21
CDM17A          260.62       10/11/05 12:00 63.35         1/23/06 9:35    61.22       4/18/06 14:42 61.12         7/21/06 0:00   63.74     10/31/06 0:00 59.56         1/26/07 0:00   60.23
CDM18A          263.20       10/11/05 12:13   64.43       1/23/06 9:42    63.15       4/18/06 14:55   63.04       7/21/06 0:00   64.07     10/31/06 0:00   62.5        1/26/07 0:00   62.80
DW1A            265.56       10/11/05 14:23   DRY         1/23/06 12:51   DRY         4/18/06 10:27   DRY         7/21/06 0:00   DRY       10/31/06 0:00   DRY         1/26/07 0:00   DRY
DW2A            270.20       10/11/05 15:41   DRY         1/23/06 13:20   69.85       4/18/06 9:01    N/M         7/21/06 0:00   DRY       10/31/06 0:00   DRY         1/26/07 0:00   70.60
MW1             265.99       10/11/05 15:55   65.95       1/23/06 13:35   64.13       4/18/06 8:27    65.32 (A)   7/21/06 0:00   65.04     10/31/06 0:00   65.02       1/26/07 0:00   65.40
MW2             266.87       10/11/05 15:30   67.63       1/23/06 13:11   65.74       4/18/06 9:14    66 (A)      7/21/06 0:00   65.83     10/31/06 0:00   65.83       1/26/07 0:00   66.25
MW3             262.04 (A)   10/11/05 15:21 DRY           1/23/06 13:02 61.52         4/18/06 9:56 61.39 (A)      7/21/06 0:00   61.25     10/31/06 0:00 61.2          1/26/07 0:00   61.05
MW4             265.41       10/11/05 17:00 66.28         1/23/06 10:13 64.83         4/18/06 11:25 65.71 (A)     7/21/06 0:00   65.14     10/31/06 0:00 65.1          1/26/07 0:00   64.67
PZ1A            268.15       10/11/05 15:50 69.45         1/23/06 13:13 67.75         4/18/06 9:05 68 (A)         7/21/06 0:00   67.86     10/31/06 0:00 67.8          1/26/07 0:00   68.60
PZ2A            263.64       10/11/05 13:56 64.13         1/23/06 14:03 62.33         4/18/06 8:37    62.45 (A)   7/21/06 0:00   64.02     10/31/06 0:00 62.62         1/26/07 0:00   63.25
PZ5A            261.12       10/11/05 14:12 62.53         1/23/06 10:18 60.59         4/18/06 11:11 60.46         7/21/06 0:00   60.55     10/31/06 0:00 60.6          1/26/07 0:00   60.20
W1R             269.50       10/11/05 16:00 70.15         1/23/06 13:23 68.35         4/18/06 8:50 68.55 (A)      7/21/06 0:00   68.55     10/31/06 0:00 68.49         1/26/07 0:00   69.30
W2              268.94       10/11/05 16:38 68.25         1/23/06 8:10    66.69       4/18/06 13:00 66.58 (A)     7/21/06 0:00   66.69     10/31/06 0:00 66.7          1/26/07 0:00   67.97
W3              269.39       10/11/05 16:43 69.03         1/23/06 8:02    67.13       4/18/06 12:50 66.98 (A)     7/21/06 0:00   67.30     10/31/06 0:00 67.25         1/26/07 0:00   67.27
W4              270.73       10/11/05 15:23   72.23       1/23/06 13:04   70.15       4/21/2006 12:070.05 (B)     7/21/06 0:00   70.18     10/31/06 0:00   70.15       1/26/07 0:00   71.13
W5              271.54       10/11/05 15:25   72.95       1/23/06 13:07   71.10       4/18/06 9:33 71.12 (A)      7/21/06 0:00   71.26     10/31/06 0:00   71.22       1/26/07 0:00   71.39
W6              265.03       10/11/05 11:25   65.30       1/23/06 8:57    63.28       4/18/06 17:05 63.05 (A)     7/21/06 0:00   64.33     10/31/06 0:00   62.66       1/26/07 0:00   62.85
UW1A            267.87       10/11/05 11:14   65.53       1/23/06 13:55   64.35       4/19/06 9:15 64.38          7/21/06 0:00   64.03     10/31/06 0:00   64.12       1/26/07 0:00   67.14
UW2A            266.65       10/11/05 11:20   DRY         1/23/06 8:39    DRY         4/18/06 16:19 DRY           7/21/06 0:00   DRY       10/31/06 0:00   DRY         1/26/07 0:00   DRY
PW3A            256.49       10/11/05 11:41   71.84       1/23/06 14:00   75.84       4/18/06 12:00 71.94         7/21/06 0:00   72.94     10/31/06 0:00   69.51       1/26/07 0:00   69.75
CDM1B           269.59       10/11/05 14:28   68.65       1/23/06 8:28    67.14       4/18/06 16:40 66.78 (A)     7/21/06 0:00   65.10     10/31/06 6:59   67.5        1/26/07 0:00   68.11
CDM2B           265.40       10/11/05 11:05   66.78       1/23/06 9:09    64.55       4/18/06 16:10 64.28         7/21/06 0:00   64.79     10/31/06 0:00   64.8        1/26/07 0:00   63.85
CDM3B           263.21       10/11/05 11:59   65.15       1/23/06 9:29    63.42       4/18/06 15:41 63.30         7/21/06 0:00   62.66     10/31/06 0:00   62.57       1/26/07 0:00   62.65
CDM4B           261.51       10/11/05 14:10   63.42       1/23/06 10:08   61.52       4/18/06 15:35 61.40         7/21/06 0:00   62.73     10/31/06 0:00   60.89       1/26/07 0:00   61.22
CDM5B           266.47       10/11/05 12:28   67.17       1/23/06 9:49    65.49       4/18/06 15:10 64.95         7/21/06 0:00   67.36     10/31/06 0:00   65.72       1/26/07 0:00   66.18
CDM8B           261.57       10/11/05 12:00   63.00       1/23/06 9:55    61.20       4/18/06 15:20   61.13       7/21/06 0:00   62.64     10/31/06 0:00   61.08       1/26/07 0:00   61.30
CDM12B          258.31       10/11/05 14:50   60.13       1/23/06 12:45   58.17       4/18/06 10:17   57.11       7/21/06 0:00   59.35     10/31/06 0:00   58.1        1/26/07 0:00   58.10
CDM13B          258.69       10/11/05 15:12   59.99       1/23/06 12:57   58.02       4/18/06 10:07   57.98       7/21/06 0:00   59.38     10/31/06 0:00   58.59       1/26/07 0:00   57.99
CDM13B2         258.45       10/11/05 15:16   59.73       1/23/06 12:55   57.79       4/18/06 10:04   57.74       7/21/06 0:00   59.03     10/31/06 0:00   57.89       1/26/07 0:00   57.80
CDM15B          265.30       10/11/05 13:53   65.29       1/23/06 13:39   63.45       4/18/06 8:18    63.59       7/21/06 0:00   65.59     10/31/06 0:00   63.83       1/26/07 0:00   64.85
CDM15B2         264.94       10/11/05 13:49   64.82       1/23/06 13:41   63.07       4/18/06 8:20    63.19       7/21/06 0:00   65.28     10/31/06 0:00   63.4        1/26/07 0:00   64.55
CDM16B          262.41       10/11/05 11:32   64.95       1/23/06 9:23    63.10       4/18/06 15:54   63.01       7/21/06 0:00   63.87     10/31/06 0:00   62.74       1/26/07 0:00   62.21
CDM17B          260.52       10/11/05 12:02   64.53       1/23/06 9:36    61.89       4/18/06 14:43   61.72       7/21/06 0:00   63.17     10/31/06 0:00   61.8        1/26/07 0:00   61.60
CDM18B          263.27       10/11/05 12:15   65.31       1/23/06 9:43    63.43       4/18/06 14:58   63.41       7/21/06 0:00   65.03     10/31/06 0:00   63.35       1/26/07 0:00   63.87
CDM19B          256.97       NI               NI          NI              NI          NI              NI          NI             NI        NI              NI          NI             NI
DW1B            265.79       10/11/05 14:20   67.23       1/23/06 12:50   65.20       4/18/06 10:24   66.11 (A)   7/21/06 0:00   65.39     10/31/06 0:00   65.5        1/26/07 0:00   65.29
DW1C            265.73       10/11/05 14:21   67.05       1/23/06 12:49   65.13       4/18/06 10:22   65.02       7/21/06 0:00   65.23     10/31/06 0:00   65.3        1/26/07 0:00   65.05
DW2B            270.41       10/11/05 15:45   71.04       1/23/06 13:18   69.35       4/18/06 8:59    69.49       7/21/06 0:00   70.98     10/31/06 0:00   69.47       1/26/07 0:00   70.30
DW2C            270.38       10/11/05 15:50   70.56       1/23/06 13:15   68.88       4/18/06 8:57    68.88 (A)   7/21/06 0:00   70.79     10/31/06 0:00   69.13       1/26/07 0:00   69.99
PZ1B            270.28       NI               NI          NI              NI          NI              NI          NI             NI        NI              NI          NI             NI
PZ2B            263.85       10/11/05 13:57   64.28       1/23/06 14:04   62.48       4/18/06 8:42    63.59       7/21/06 0:00   64.39     10/31/06 0:00 62            1/26/07 0:00   63.44
PZ3B            266.03       10/11/05 16:03 65.90         1/23/06 13:36 64.10         4/18/06 8:25    64.25 (A)   7/21/06 0:00   64.49     10/31/06 0:00 64.45         1/26/07 0:00   65.55
PZ4B            266.76       10/11/05 15:31 67.25         1/23/06 13:10 65.49         4/18/06 9:20 66.50          7/21/06 0:00   67.15     10/31/06 0:00 65.63         1/26/07 0:00   66.22
PZ5B            261.04       10/11/05 14:14 62.53         1/23/06 10:19 60.50         4/18/06 11:09 60.42         7/21/06 0:00   61.58     10/31/06 0:00 60.55         1/26/07 0:00   60.22
PZ5B2           262.92       10/11/05 14:18 64.42         1/23/06 10:21 62.40         4/18/06 11:13 62.30         7/21/06 0:00   63.51     10/31/06 0:00 62.52         1/26/07 0:00   62.10
PZ6B            261.39       NI             NI            NI            NI            NI            NI            NI             NI        NI            NI            NI             NI
UW1B            267.45       10/11/05 11:15 64.87         1/23/06 13:58 63.70         4/19/06 9:15    63.77       7/21/06 0:00   63.22     10/31/06 0:00 63.19         1/26/07 0:00   66.55
UW1C            267.37       10/11/05 11:16 64.85         1/23/06 13:57 63.65         4/19/06 9:15    63.65       7/21/06 0:00   63.25     10/31/06 0:00 63.2          1/26/07 0:00   66.60
UW2B            266.60       10/11/05 11:20 66.33         1/23/06 8:38    64.64       4/18/06 16:18 64.48 (A)     7/21/06 0:00   64.89     10/31/06 0:00 64.79         1/26/07 0:00   65.40
UW2C            266.66       10/11/05 11:21 66.43         1/23/06 8:40    64.69       4/18/06 16:19 64.54 (A)     7/21/06 0:00   64.88     10/31/06 0:00 64.85         1/26/07 0:00   65.45
CDM1C           270.71       10/11/05 16:30 69.65         1/23/06 8:29    68.10       4/18/06 16:38 67.90         7/21/06 0:00   65.17     10/31/06 6:55 68.4          1/26/07 0:00   69.11
CDM2C           265.30       10/11/05 11:03 66.77         1/23/06 9:10 64.49          4/18/06 16:07 64.24         7/21/06 0:00   70.77     10/31/06 0:00 64.75         1/26/07 0:00   63.80
CDM4C           261.28       10/11/05 14:09 63.18         1/23/06 10:07 61.29         4/18/06 15:34 61.17         7/21/06 0:00   61.01     10/31/06 0:00 60.95         1/26/07 0:00   61.12
CDM5C           266.29       10/11/05 12:24 66.95         1/23/06 9:51 65.19          4/18/06 15:09 65.20         7/21/06 0:00   65.83     10/31/06 0:00 65.52         1/26/07 0:00   66.19
CDM7C           268.78       10/11/05 12:38 67.75         1/23/06 8:17 65.77          4/18/06 16:45 66.42         7/21/06 0:00   66.56     10/31/06 0:00 66.33         1/26/07 0:00   68.60
CDM8C           261.51       10/11/05 14:05 63.13         1/23/06 9:57 61.13          4/18/06 15:22 61.06         7/21/06 0:00   62.63     10/31/06 0:00 61.08         1/26/07 0:00   61.20
CDM13C          258.69       10/11/05 15:10 59.99         1/23/06 12:58 58.02         4/18/06 10:09 57.97         7/21/06 0:00   57.96     10/31/06 0:00 58            1/26/07 0:00   58.00
CDM15C          265.36       10/11/05 13:55 65.28         1/23/06 13:38 63.46         4/18/06 8:15 63.60          7/21/06 0:00   64.02     10/31/06 0:00 63.93         1/26/07 0:00   64.95
CDM16C          262.33       10/11/05 11:35 64.88         1/23/06 9:24 63.04          4/18/06 15:51 62.93         7/21/06 0:00   63.89     10/31/06 0:00 62.63         1/26/07 0:00   62.19
CDM17C          260.55       10/11/05 12:04 64.60         1/23/06 9:37 61.94          4/18/06 14:46 61.80         7/21/06 0:00   63.54     10/31/06 0:00 62            1/26/07 0:00   61.67
CDM18C          263.14       10/11/05 12:16 65.30         1/23/06 9:43 63.37          4/18/06 15:00 63.34         7/21/06 0:00   65.03     10/31/06 0:00 63.38         1/26/07 0:00   63.84
PZ4C            266.69       10/11/05 15:35 67.15         1/23/06 13:09 65.37         4/18/06 9:25 65.38          7/21/06 0:00   65.96     10/31/06 0:00 65.51         1/26/07 0:00   66.14
PZ5C            260.55       10/11/05 14:16 62.20         1/23/06 10:20 60.12         4/18/06 11:07 60.02         7/21/06 0:00   61.53     10/31/06 0:00 60.3          1/26/07 0:00   59.98
PW1A            264.82       10/11/05 11:41 77.08         1/23/06 14:00 79.08         4/18/06 12:00 78.09         7/21/06 0:00   77.48     10/31/06 0:00   78.05       1/26/07 0:00   79.06
PW2A            267.22       10/11/05 11:41 78.74         1/23/06 14:00 76.44         4/18/06 12:00 77.64         7/21/06 0:00   81.86     10/31/06 0:00   77.35       1/26/07 0:00   78.02
PW3A2           259.66       NI             NI            NI            NI            NI            NI            NI             NI        NI              NI          NI             NI
PW4A            259.70       10/11/05 11:41   67.84       1/23/06 14:00   73.64       4/18/06 12:00   76.84       7/21/06 0:00   75.62     10/31/06 0:00   70.13       1/26/07 0:00   65.23
PW5A            259.69       10/11/05 11:41   76.80       1/23/06 14:00   74.30       4/18/06 12:00   74.50       7/21/06 0:00   77.92     10/31/06 0:00 73.90         1/26/07 0:00   72.67
PW1B            269.64       NI               NI          NI              NI          NI              NI          NI             NI        NI            NI            NI             NI
PW4B            262.52       NI               NI          NI              NI          NI              NI          NI             NI        NI            NI            NI             NI
                             Notes: (A) - Measured from top of casing plus 0.03"
                                    (B) - Correlated level from others measured on 4/21/06 (MW-4, W-5, W-6)
                                    (C) - Well not yet installed                                  1 of 3
                                                                Attachment 7, Table A. Groundwater Depths

                Monitoring
                Point                        Depth to                  Depth to                    Depth to                   Depth to                   Depth to                   Depth to
  Location ID   Elevation         Date        Water          Date       Water        Date           Water          Date        Water          Date        Water          Date        Water
CDM1A           269.83       4/23/07 0:00   71.93       8/3/07 0:00   73.07     10/17/07 0:00     76.19       1/15/08 0:00   76.05       4/18/08 0:00   76.58       7/23/08 0:00   76.75
CDM2A           265.79       4/23/07 0:00   68.64       8/3/07 0:00   69.63     10/17/07 0:00     72.49       1/15/08 0:00   72.20       4/18/08 0:00   72.86       7/23/08 0:00   73.10
CDM3A           262.14       4/23/07 0:00   65.65       8/3/07 0:00   65.95     10/17/07 0:00     68.63       1/15/08 0:00   69.39       4/18/08 0:00   70.46       7/23/08 0:00   70.59
CDM4A           261.55       4/23/07 0:00   63.66       8/3/07 0:00   65.52     10/17/07 0:00   66.67         1/15/08 0:00   68.15       4/18/08 0:00   68.97       7/23/08 0:00   69.21
CDM5A           265.9 (A)    4/23/07 0:00   68.64       8/3/07 0:00   70.55       10/17/07 0:00 72.50         1/15/08 0:00   72.89       4/18/08 0:00   73.72       7/23/08 0:00   74.60
CDM6A           266.68       4/23/07 0:00   68.90       8/3/07 0:00   71.63       10/17/07 0:00 73.35         1/15/08 0:00   73.80       4/18/08 0:00   DRY         7/23/08 0:00   DRY
CDM7A           268.52       4/23/07 0:00   70.82       8/3/07 0:00   73.23       10/17/07 0:00 74.97         1/15/08 0:00   75.62       4/18/08 0:00   76.20       7/23/08 0:00   77.38
CDM8A           261.59       4/23/07 0:00   63.95       8/3/07 0:00   65.72       10/17/07 0:00 67.39         1/15/08 0:00   68.28       4/18/08 0:00   69.17       7/23/08 0:00   69.97
CDM12A          258.33       4/23/07 0:00   61.26       8/3/07 0:00   63          10/17/07 0:00 64.10         1/15/08 0:00   65.55       4/18/08 0:00   66.20       7/23/08 0:00   66.75
CDM13A          258.56       4/23/07 0:00   60.81       8/3/07 0:00   62.64       10/17/07 0:00 64.25         1/15/08 0:00   65.33       4/18/08 0:00   65.94       7/23/08 0:00   66.55
CDM15A          265.30       4/23/07 0:00   67.55       8/3/07 0:00   70          10/17/07 0:00 71.65         1/15/08 0:00   72.35       4/18/08 0:00   72.93       7/23/08 0:00   73.95
CDM16A          262.54       4/23/07 0:00   65.90       8/3/07 0:00   67          10/17/07 0:00 69.73         1/15/08 0:00   69.88       4/18/08 0:00   70.96       7/23/08 0:00   71.35
CDM17A          260.62       4/23/07 0:00   62.62       8/3/07 0:00   64.31       10/17/07 0:00 65.73         1/15/08 0:00   66.99       4/18/08 0:00   67.99       7/23/08 0:00   68.65
CDM18A          263.20       4/23/07 0:00   65.40       8/3/07 0:00   67.06       10/17/07 0:00 68.60         1/15/08 0:00   69.63       4/18/08 0:00   70.65       7/23/08 0:00   71.62
DW1A            265.56       4/23/07 0:00   DRY         8/3/07 0:00   DRY         10/17/07 0:00 DRY           1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
DW2A            270.20       4/23/07 0:00   DRY         8/3/07 0:00   74.7        10/17/07 0:00 DRY           1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
MW1             265.99       4/23/07 0:00   DRY         8/3/07 0:00   68.9        10/17/07 0:00 69.10         1/15/08 0:00   69.48       4/18/08 0:00   DRY         7/23/08 0:00   DRY
MW2             266.87       4/23/07 0:00   68.98       8/3/07 0:00   71.45       10/17/07 0:00 DRY           1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
MW3             262.04 (A)   4/23/07 0:00   DRY         8/3/07 0:00   62.28       10/17/07 0:00 DRY           1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
MW4             265.41       4/23/07 0:00   DRY         8/3/07 0:00   N/M         10/17/07 0:00 DRY           1/15/08 0:00   N/M         4/18/08 0:00   DRY         7/23/08 0:00   DRY
PZ1A            268.15       4/23/07 0:00   69.95       8/3/07 0:00   DRY         10/17/07 0:00 DRY           1/15/08 0:00   N/M         4/18/08 0:00   DRY         7/23/08 0:00   DRY
PZ2A            263.64       4/23/07 0:00   65.93       8/3/07 0:00   DRY         10/17/07 0:00 DRY           1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
PZ5A            261.12       4/23/07 0:00   63.41       8/3/07 0:00   65.36       10/17/07 0:00 67.63         1/15/08 0:00   67.93       4/18/08 0:00   68.63       7/23/08 0:00   69.12
W1R             269.50       4/23/07 0:00   DRY         8/3/07 0:00   DRY         10/17/07 0:00 DRY           1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
W2              268.94       4/23/07 0:00   DRY         8/3/07 0:00   DRY         10/17/07 0:00   DRY         1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
W3              269.39       4/23/07 0:00   DRY         8/3/07 0:00   DRY         10/17/07 0:00   DRY         1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
W4              270.73       4/23/07 0:00   DRY         8/3/07 0:00   DRY         10/17/07 0:00   DRY         1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
W5              271.54       4/23/07 0:00   73.94       8/3/07 0:00   DRY         10/17/07 0:00   DRY         1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
W6              265.03       4/23/07 0:00   67.42       8/3/07 0:00   DRY         10/17/07 0:00   DRY         1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
UW1A            267.87       4/23/07 0:00   DRY         8/3/07 0:00   DRY         10/17/07 0:00   DRY         1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
UW2A            266.65       4/23/07 0:00   DRY         8/3/07 0:00   DRY         10/17/07 0:00   DRY         1/15/08 0:00   DRY         4/18/08 0:00   DRY         7/23/08 0:00   DRY
PW3A            256.49       4/23/07 0:00   N/M         8/3/07 0:00   N/M         10/17/07 0:00   N/M         1/15/08 0:00   N/M         4/18/08 0:00   N/M         7/23/08 0:00   65.13
CDM1B           269.59       4/23/07 0:00   71.80       8/3/07 0:00   73.2        10/17/07 0:00   75.95       1/15/08 0:00   76.03       4/18/08 0:00   76.42       7/23/08 0:00   76.97
CDM2B           265.40       4/23/07 0:00   68.25       8/3/07 0:00   69.3        10/17/07 0:00   72.13       1/15/08 0:00   71.87       4/18/08 0:00   72.53       7/23/08 0:00   74.80
CDM3B           263.21       4/23/07 0:00   66.49       8/3/07 0:00   67.09       10/17/07 0:00   69.73       1/15/08 0:00   70.08       4/18/08 0:00   71.12       7/23/08 0:00   71.53
CDM4B           261.51       4/23/07 0:00   65.35       8/3/07 0:00   66          10/17/07 0:00   68.00       1/15/08 0:00   68.40       4/18/08 0:00   69.53       7/23/08 0:00   69.53
CDM5B           266.47       4/23/07 0:00   69.46       8/3/07 0:00   71.22       10/17/07 0:00   72.85       1/15/08 0:00   73.43       4/18/08 0:00   73.33       7/23/08 0:00   75.50
CDM8B           261.57       4/23/07 0:00   64.40       8/3/07 0:00   66.1        10/17/07 0:00   68.35       1/15/08 0:00   68.62       4/18/08 0:00   69.46       7/23/08 0:00   70.65
CDM12B          258.31       4/23/07 0:00   61.45       8/3/07 0:00   63.15       10/17/07 0:00   65.14       1/15/08 0:00   65.65       4/18/08 0:00   66.46       7/23/08 0:00   67.00
CDM13B          258.69       4/23/07 0:00   61.80       8/3/07 0:00   63.11       10/17/07 0:00   65.08       1/15/08 0:00   65.64       4/18/08 0:00   66.38       7/23/08 0:00   67.02
CDM13B2         258.45       4/23/07 0:00   61.62       8/3/07 0:00   62.91       10/17/07 0:00   64.80       1/15/08 0:00   67.40       4/18/08 0:00   66.16       7/23/08 0:00   66.80
CDM15B          265.30       4/23/07 0:00   67.60       8/3/07 0:00   70.14       10/17/07 0:00   71.84       1/15/08 0:00   72.43       4/18/08 0:00   73.14       7/23/08 0:00   74.15
CDM15B2         264.94       4/23/07 0:00   67.30       8/3/07 0:00   69.84       10/17/07 0:00   71.52       1/15/08 0:00   72.02       4/18/08 0:00   72.79       7/23/08 0:00   73.82
CDM16B          262.41       4/23/07 0:00   65.92       8/3/07 0:00   66.96       10/17/07 0:00   69.75       1/15/08 0:00   69.86       4/18/08 0:00   70.95       7/23/08 0:00   71.32
CDM17B          260.52       4/23/07 0:00   66.10       8/3/07 0:00   68.1        10/17/07 0:00   69.32       1/15/08 0:00   68.63       4/18/08 0:00   70.42       7/23/08 0:00   72.45
CDM18B          263.27       4/23/07 0:00   67.75       8/3/07 0:00   69.09       10/17/07 0:00   70.98       1/15/08 0:00   70.67       4/18/08 0:00   71.69       7/23/08 0:00   73.90
CDM19B          256.97       NI             NI          NI            NI          NI              NI          NI             NI          NI             NI          7/23/08 0:00   65.13
DW1B            265.79       4/23/07 0:00   68.40       8/3/07 0:00   70.18       10/17/07 0:00   72.21       1/15/08 0:00   72.71       4/18/08 0:00   73.36       7/23/08 0:00   73.98
DW1C            265.73       4/23/07 0:00   68.30       8/3/07 0:00   70.22       10/17/07 0:00   72.18       1/15/08 0:00   72.62       4/18/08 0:00   73.40       7/23/08 0:00   73.98
DW2B            270.41       4/23/07 0:00   73.10       8/3/07 0:00   75.72       10/17/07 0:00   77.38       1/15/08 0:00   77.73       4/18/08 0:00   78.41       7/23/08 0:00   79.48
DW2C            270.38       4/23/07 0:00   73.25       8/3/07 0:00   75.38       10/17/07 0:00   77.78       1/15/08 0:00   77.52       4/18/08 0:00   78.23       7/23/08 0:00   79.18
PZ1B            270.28       NI             NI          NI            NI          NI              NI          NI             NI          NI             NI          7/23/08 0:00   79.10
PZ2B            263.85       4/23/07 0:00   66.22       8/3/07 0:00   68.78       10/17/07 0:00   70.53       1/15/08 0:00   70.90       4/18/08 0:00   71.62       7/23/08 0:00   72.57
PZ3B            266.03       4/23/07 0:00   68.80       8/3/07 0:00   70.95       10/17/07 0:00   72.50       1/15/08 0:00   73.18       4/18/08 0:00   73.75       7/23/08 0:00   74.80
PZ4B            266.76       4/23/07 0:00   69.62       8/3/07 0:00   71.5        10/17/07 0:00 73.37         1/15/08 0:00   73.79       4/18/08 0:00   74.37       7/23/08 0:00   75.30
PZ5B            261.04       4/23/07 0:00   63.53       8/3/07 0:00   65.32       10/17/07 0:00 67.55         1/15/08 0:00   67.80       4/18/08 0:00   68.80       7/23/08 0:00   69.12
PZ5B2           262.92       4/23/07 0:00   65.39       8/3/07 0:00   67.25       10/17/07 0:00 69.45         1/15/08 0:00   69.78       4/18/08 0:00   70.63       7/23/08 0:00   71.05
PZ6B            261.39       NI             NI          NI            NI          NI            NI            NI             NI          NI             NI          7/23/08 0:00   69.64
UW1B            267.45       4/23/07 0:00   69.25       8/3/07 0:00   72          10/17/07 0:00 74.08         1/15/08 0:00   74.58       4/18/08 0:00   74.80       7/23/08 0:00   75.55
UW1C            267.37       4/23/07 0:00   69.30       8/3/07 0:00   72.08       10/17/07 0:00 74.08         1/15/08 0:00   74.12       4/18/08 0:00   74.77       7/23/08 0:00   75.53
UW2B            266.60       4/23/07 0:00   68.80       8/3/07 0:00   70.55       10/17/07 0:00 72.85         1/15/08 0:00   73.25       4/18/08 0:00   73.75       7/23/08 0:00   74.34
UW2C            266.66       4/23/07 0:00   68.89       8/3/07 0:00   70.65       10/17/07 0:00 72.95         1/15/08 0:00   73.32       4/18/08 0:00   73.82       7/23/08 0:00   74.45
CDM1C           270.71       4/23/07 0:00   72.78       8/3/07 0:00   74.23       10/17/07 0:00 76.93         1/15/08 0:00   77.03       4/18/08 0:00   77.40       7/23/08 0:00   77.97
CDM2C           265.30       4/23/07 0:00   68.15       8/3/07 0:00   69.25       10/17/07 0:00 72.06         1/15/08 0:00   71.83       4/18/08 0:00   72.48       7/23/08 0:00   74.75
CDM4C           261.28       4/23/07 0:00   64.26       8/3/07 0:00   65.85       10/17/07 0:00 67.77         1/15/08 0:00   68.42       4/18/08 0:00   69.30       7/23/08 0:00   70.35
CDM5C           266.29       4/23/07 0:00   69.30       8/3/07 0:00   71          10/17/07 0:00 73.37         1/15/08 0:00   73.20       4/18/08 0:00   74.08       7/23/08 0:00   75.03
CDM7C           268.78       4/23/07 0:00   71.70       8/3/07 0:00   74.6        10/17/07 0:00 76.03         1/15/08 0:00   76.20       4/18/08 0:00   77.12       7/23/08 0:00   78.55
CDM8C           261.51       4/23/07 0:00   64.26       8/3/07 0:00   66.12       10/17/07 0:00 67.65         1/15/08 0:00   68.53       4/18/08 0:00   69.45       7/23/08 0:00   70.60
CDM13C          258.69       4/23/07 0:00   61.62       8/3/07 0:00   63.13       10/17/07 0:00 65.03         1/15/08 0:00   65.65       4/18/08 0:00   66.38       7/23/08 0:00   67.03
CDM15C          265.36       4/23/07 0:00   67.74       8/3/07 0:00   70.35       10/17/07 0:00 71.95         1/15/08 0:00   72.49       4/18/08 0:00   73.23       7/23/08 0:00   74.24
CDM16C          262.33       4/23/07 0:00   65.91       8/3/07 0:00   66.9        10/17/07 0:00 69.80         1/15/08 0:00   69.82       4/18/08 0:00   70.89       7/23/08 0:00   71.28
CDM17C          260.55       4/23/07 0:00   66.22       8/3/07 0:00   68.2        10/17/07 0:00 69.45         1/15/08 0:00   68.68       4/18/08 0:00   70.48       7/23/08 0:00   72.63
CDM18C          263.14       4/23/07 0:00   67.92       8/3/07 0:00   69.14       10/17/07 0:00 71.10         1/15/08 0:00   70.65       4/18/08 0:00   71.66       7/23/08 0:00   74.06
PZ4C            266.69       4/23/07 0:00   69.06       8/3/07 0:00   71.3        10/17/07 0:00 73.31         1/15/08 0:00   73.69       4/18/08 0:00   74.30       7/23/08 0:00   75.45
PZ5C            260.55       4/23/07 0:00   63.40       8/3/07 0:00   65.19       10/17/07 0:00 67.38         1/15/08 0:00   67.60       4/18/08 0:00   68.47       7/23/08 0:00   69.00
PW1A            264.82       4/23/07 0:00   82.12       8/3/07 0:00   77.90       10/17/07 0:00 78.67         1/15/08 0:00   78.31       4/18/08 0:00   79.63       7/23/08 0:00   79.70
PW2A            267.22       4/23/07 0:00   81.82       8/3/07 0:00   77.54       10/17/07 0:00 81.89         1/15/08 0:00   79.50       4/18/08 0:00   80.77       7/23/08 0:00   81.21
PW3A2           259.66       NI             NI          NI            NI          NI            NI            NI             NI          NI             NI          NI             N/M
PW4A            259.70       4/23/07 0:00   71.61       8/3/07 0:00   72.79       10/17/07 0:00 77.94         1/15/08 0:00   75.70       4/18/08 0:00   N/M         7/23/08 0:00   N/M
PW5A            259.69       4/23/07 0:00   77.64       8/3/07 0:00   76.46       10/17/07 0:00 76.61         1/15/08 0:00   76.27       4/18/08 0:00   76.55       7/23/08 0:00   76.34
PW1B            269.64       NI             NI          NI            NI          NI            NI            NI             NI          NI             NI          NI             N/M
PW4B            262.52       NI             NI          NI            NI          NI            NI            NI             NI          NI             NI          NI             N/M
                             Notes: (A) - Measured from top of casing plus 0.03"
                                    (B) - Correlated level from others measured on 4/21/06 (MW-4, W-5, W-6)
                                    (C) - Well not yet installed                              2 of 3
                                                                 Attachment 7, Table A. Groundwater Depths

                Monitoring
                Point                         Depth to                   Depth to                    Depth to                   Depth to                   Depth to
  Location ID   Elevation         Date         Water          Date        Water          Date         Water          Date        Water          Date        Water
CDM1A           269.83       10/24/08 0:00 76.77         1/23/09 0:00   76.78       5/1/09 0:00     76.78       7/23/09 0:00   76.76       11/2/09 0:00   DRY
CDM2A           265.79       10/24/08 0:00 75.38         1/23/09 0:00   75.40       5/1/09 0:00     75.33       7/23/09 0:00   79.80       11/2/09 0:00   79.70
CDM3A           262.14       10/24/08 0:00 72.75         1/23/09 0:00   72.21       5/1/09 0:00     74.20       7/23/09 0:00   74.68       11/2/09 0:00   74.15
CDM4A           261.55       10/24/08 0:00 70.79         1/23/09 0:00   70.40       5/1/09 0:00     72.02       7/23/09 0:00   73.10       11/2/09 0:00   72.23
CDM5A           265.9 (A)    10/24/08 0:00 75.80         1/23/09 0:00   74.69       5/1/09 0:00     76.38       7/23/09 0:00   77.33       11/2/09 0:00   76.40
CDM6A           266.68       10/24/08 0:00 DRY           1/23/09 0:00   74.85       5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
CDM7A           268.52       10/24/08 0:00 76.50         1/23/09 0:00   76.04       5/1/09 0:00     77.87       7/23/09 0:00   78.76       11/2/09 0:00   76.88
CDM8A           261.59       10/24/08 0:00 71.27         1/23/09 0:00   70.15       5/1/09 0:00     72.00       7/23/09 0:00   73.20       11/2/09 0:00   72.40
CDM12A          258.33       10/24/08 0:00 69.15         1/23/09 0:00   68.20       5/1/09 0:00     69.62       7/23/09 0:00   70.88       11/2/09 0:00   70.50
CDM13A          258.56       10/24/08 0:00 68.45         1/23/09 0:00   67.65       5/1/09 0:00     68.94       7/23/09 0:00   70.20       11/2/09 0:00   69.80
CDM15A          265.30       10/24/08 0:00 74.90         1/23/09 0:00   73.90       5/1/09 0:00     75.24       7/23/09 0:00   76.49       11/2/09 0:00   75.35
CDM16A          262.54       10/24/08 0:00 73.90         1/23/09 0:00   72.80       5/1/09 0:00     75.00       7/23/09 0:00   75.60       11/2/09 0:00   74.95
CDM17A          260.62       10/24/08 0:00 69.85         1/23/09 0:00   70.08       5/1/09 0:00     71.26       7/23/09 0:00   71.94       11/2/09 0:00   71.28
CDM18A          263.20       10/24/08 0:00 74.53         1/23/09 0:00   72.26       5/1/09 0:00     73.71       7/23/09 0:00   DRY         11/2/09 0:00   74.06
DW1A            265.56       10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
DW2A            270.20       10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
MW1             265.99       10/24/08 0:00 69.45         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
MW2             266.87       10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
MW3             262.04 (A)   10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
MW4             265.41       10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
PZ1A            268.15       10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
PZ2A            263.64       10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
PZ5A            261.12       10/24/08 0:00 71.77         1/23/09 0:00   70.48       5/1/09 0:00     72.25       7/23/09 0:00   73.25       11/2/09 0:00   72.89
W1R             269.50       10/24/08 0:00 DRY           1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
W2              268.94       10/24/08 0:00   DRY         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
W3              269.39       10/24/08 0:00   DRY         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
W4              270.73       10/24/08 0:00   DRY         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
W5              271.54       10/24/08 0:00   DRY         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
W6              265.03       10/24/08 0:00   DRY         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
UW1A            267.87       10/24/08 0:00   DRY         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
UW2A            266.65       10/24/08 0:00   DRY         1/23/09 0:00   DRY         5/1/09 0:00     DRY         7/23/09 0:00   DRY         11/2/09 0:00   DRY
PW3A            256.49       10/24/08 0:00   68.61       1/23/09 0:00   67.07       5/1/09 0:00     69.28       7/23/09 0:00   69.65       11/2/09 0:00   69.17
CDM1B           269.59       10/24/08 0:00   78.62       1/23/09 0:00   77.83       5/1/09 0:00     78.92       7/23/09 0:00   79.73       11/2/09 0:00   79.51
CDM2B           265.40       10/24/08 0:00   76.18       1/23/09 0:00   74.60       5/1/09 0:00     76.92       7/23/09 0:00   76.90       11/2/09 0:00   76.93
CDM3B           263.21       10/24/08 0:00   73.80       1/23/09 0:00   73.04       5/1/09 0:00     75.03       7/23/09 0:00   75.62       11/2/09 0:00   75.05
CDM4B           261.51       10/24/08 0:00   72.10       1/23/09 0:00   71.39       5/1/09 0:00     72.91       7/23/09 0:00   74.00       11/2/09 0:00   73.20
CDM5B           266.47       10/24/08 0:00   76.35       1/23/09 0:00   75.40       5/1/09 0:00     77.30       7/23/09 0:00   77.93       11/2/09 0:00   77.31
CDM8B           261.57       10/24/08 0:00   71.76       1/23/09 0:00   71.00       5/1/09 0:00     72.64       7/23/09 0:00   73.64       11/2/09 0:00   73.00
CDM12B          258.31       10/24/08 0:00   69.98       1/23/09 0:00   68.89       5/1/09 0:00     70.50       7/23/09 0:00   71.52       11/2/09 0:00   71.03
CDM13B          258.69       10/24/08 0:00   69.33       1/23/09 0:00   68.32       5/1/09 0:00     69.80       7/23/09 0:00   70.90       11/2/09 0:00   70.40
CDM13B2         258.45       10/24/08 0:00   69.00       1/23/09 0:00   68.02       5/1/09 0:00     69.54       7/23/09 0:00   70.62       11/2/09 0:00   70.13
CDM15B          265.30       10/24/08 0:00   74.91       1/23/09 0:00   73.70       5/1/09 0:00     75.45       7/23/09 0:00   76.62       11/2/09 0:00   75.63
CDM15B2         264.94       10/24/08 0:00   74.52       1/23/09 0:00   74.08       5/1/09 0:00     75.10       7/23/09 0:00   76.24       11/2/09 0:00   75.29
CDM16B          262.41       10/24/08 0:00   74.03       1/23/09 0:00   72.78       5/1/09 0:00     75.06       7/23/09 0:00   75.52       11/2/09 0:00   75.00
CDM17B          260.52       10/24/08 0:00   72.76       1/23/09 0:00   72.48       5/1/09 0:00     74.22       7/23/09 0:00   75.02       11/2/09 0:00   74.53
CDM18B          263.27       10/24/08 0:00   73.81       1/23/09 0:00   73.73       5/1/09 0:00     75.50       7/23/09 0:00   75.87       11/2/09 0:00   75.53
CDM19B          256.97       10/24/08 0:00   67.47       1/23/09 0:00   68.45       5/1/09 0:00     68.50       7/23/09 0:00   69.20       11/2/09 0:00   68.50
DW1B            265.79       10/24/08 0:00   77.05       1/23/09 0:00   75.90       5/1/09 0:00     77.53       7/23/09 0:00   78.55       11/2/09 0:00   78.18
DW1C            265.73       10/24/08 0:00   77.25       1/23/09 0:00   76.13       5/1/09 0:00     77.73       7/23/09 0:00   78.65       11/2/09 0:00   78.28
DW2B            270.41       10/24/08 0:00   81.49       1/23/09 0:00   80.68       5/1/09 0:00     81.66       7/23/09 0:00   82.83       11/2/09 0:00   81.82
DW2C            270.38       10/24/08 0:00   81.08       1/23/09 0:00   80.28       5/1/09 0:00     81.86       7/23/09 0:00   82.79       11/2/09 0:00   81.92
PZ1B            270.28       10/24/08 0:00   83.25       1/23/09 0:00   82.42       5/1/09 0:00     84.14       7/23/09 0:00   84.95       11/2/09 0:00   84.10
PZ2B            263.85       10/24/08 0:00   73.90       1/23/09 0:00   72.98       5/1/09 0:00     74.39       7/23/09 0:00   75.53       11/2/09 0:00   74.70
PZ3B            266.03       10/24/08 0:00   75.60       1/23/09 0:00   74.85       5/1/09 0:00     76.46       7/23/09 0:00   77.38       11/2/09 0:00   76.31
PZ4B            266.76       10/24/08 0:00   76.69       1/23/09 0:00   75.81       5/1/09 0:00     77.18       7/23/09 0:00   78.35       11/2/09 0:00   77.60
PZ5B            261.04       10/24/08 0:00 71.82         1/23/09 0:00   70.63       5/1/09 0:00     72.30       7/23/09 0:00   73.30       11/2/09 0:00   72.78
PZ5B2           262.92       10/24/08 0:00 73.78         1/23/09 0:00   72.47       5/1/09 0:00     74.30       7/23/09 0:00   75.20       11/2/09 0:00   74.80
PZ6B            261.39       10/24/08 0:00 74.92         1/23/09 0:00   73.89       5/1/09 0:00     75.50       7/23/09 0:00   76.07       11/2/09 0:00   75.51
UW1B            267.45       10/24/08 0:00 74.30         1/23/09 0:00   75.15       5/1/09 0:00     76.41       7/23/09 0:00   76.85       11/2/09 0:00   77.3 (A)
UW1C            267.37       10/24/08 0:00 74.29         1/23/09 0:00   75.15       5/1/09 0:00     76.39       7/23/09 0:00   76.80       11/2/09 0:00   77.39
UW2B            266.60       10/24/08 0:00 75.84         1/23/09 0:00   75.04       5/1/09 0:00     74.34       7/23/09 0:00   77.20       11/2/09 0:00   76.85
UW2C            266.66       10/24/08 0:00 75.93         1/23/09 0:00   75.12       5/1/09 0:00     74.45       7/23/09 0:00   77.40       11/2/09 0:00   76.90
CDM1C           270.71       10/24/08 0:00 79.61         1/23/09 0:00   78.82       5/1/09 0:00     79.97       7/23/09 0:00   80.75       11/2/09 0:00   80.51
CDM2C           265.30       10/24/08 0:00 76.15         1/23/09 0:00   74.55       5/1/09 0:00     76.90       7/23/09 0:00   76.88       11/2/09 0:00   76.85
CDM4C           261.28       10/24/08 0:00 71.89         1/23/09 0:00   71.19       5/1/09 0:00     72.65       7/23/09 0:00   73.76       11/2/09 0:00   73.20
CDM5C           266.29       10/24/08 0:00 76.10         1/23/09 0:00   75.20       5/1/09 0:00     77.50       7/23/09 0:00   77.68       11/2/09 0:00   77.15
CDM7C           268.78       10/24/08 0:00 77.00         1/23/09 0:00   76.69       5/1/09 0:00     78.93       7/23/09 0:00   79.35       11/2/09 0:00   77.75
CDM8C           261.51       10/24/08 0:00 71.90         1/23/09 0:00   71.05       5/1/09 0:00     72.70       7/23/09 0:00   73.61       11/2/09 0:00   72.98
CDM13C          258.69       10/24/08 0:00 69.35         1/23/09 0:00   68.33       5/1/09 0:00     69.86       7/23/09 0:00   70.93       11/2/09 0:00   70.45
CDM15C          265.36       10/24/08 0:00 74.90         1/23/09 0:00   74.13       5/1/09 0:00     75.54       7/23/09 0:00   76.68       11/2/09 0:00   75.72
CDM16C          262.33       10/24/08 0:00 73.99         1/23/09 0:00   72.75       5/1/09 0:00     75.05       7/23/09 0:00   75.47       11/2/09 0:00   74.95
CDM17C          260.55       10/24/08 0:00 72.85         1/23/09 0:00   72.60       5/1/09 0:00     74.32       7/23/09 0:00   75.05       11/2/09 0:00   74.63
CDM18C          263.14       10/24/08 0:00 73.80         1/23/09 0:00   73.78       5/1/09 0:00     75.55       7/23/09 0:00   75.84       11/2/09 0:00   75.60
PZ4C            266.69       10/24/08 0:00 76.56         1/23/09 0:00   75.70       5/1/09 0:00     77.05       7/23/09 0:00   N/M         11/2/09 0:00   77.85
PZ5C            260.55       10/24/08 0:00 71.54         1/23/09 0:00   70.25       5/1/09 0:00     72.04       7/23/09 0:00   72.98       11/2/09 0:00   72.55
PW1A            264.82       10/24/08 0:00 79.50         1/23/09 0:00   79.22       5/1/09 0:00     79.22       7/23/09 0:00   N/M         11/2/09 0:00   N/M
PW2A            267.22       10/24/08 0:00 80.74         1/23/09 0:00   79.44       5/1/09 0:00     81.74       7/13/09 0:00   58.44       11/2/09 0:00   N/M
PW3A2           259.66       10/24/08 0:00 N/M           1/23/09 0:00   N/M         5/1/09 0:00     N/M         7/23/09 0:00   77.34       11/2/09 0:00   72.14
PW4A            259.70       10/24/08 0:00 N/M           1/23/09 0:00   N/M         5/1/09 0:00     N/M         7/23/09 0:00   N/M         11/2/09 0:00   N/M
PW5A            259.69       10/24/08 0:00 74.70         1/23/09 0:00   77.90       5/1/09 0:00     75.30       7/13/09 0:00   73.60       11/2/09 0:00   N/M
PW1B            269.64       10/24/08 0:00 N/M           1/23/09 0:00   N/M         5/1/09 0:00     90.60       7/23/09 0:00   91.60       11/2/09 0:00   90.70
PW4B            262.52       10/24/08 0:00 N/M           1/23/09 0:00   N/M         5/1/09 0:00     92.60       7/23/09 0:00   93.60       11/2/09 0:00   93.10
                             Notes: (A) - Measured from top of casing plus 0.03"
                                    (B) - Correlated level from others measured on 4/21/06 (MW-4, W-5, W-6)
                                    (C) - Well not yet installed                                  3 of 3
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
CDM10A-GW-041        FD                  1/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM10A-GW-041        FD                  1/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM10A-GW-041        FD                  1/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM10A-GW-041        FD                  1/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM10A-GW-041        FD                  1/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM10A-GW-041        FD                  1/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM10A-GW-041        FD                  1/17/2006     BENZENE                                            ug/L
CDM10A-GW-041        FD                  1/17/2006     CHLOROBENZENE                                      ug/L
CDM10A-GW-041        FD                  1/17/2006     CHLOROFORM                                         ug/L
CDM10A-GW-041        FD                  1/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM10A-GW-041        FD                  1/17/2006     TETRACHLOROETHENE                   0.76           ug/L
CDM10A-GW-041        FD                  1/17/2006     TOLUENE                                            ug/L
CDM10A-GW-041        FD                  1/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM10A-GW-041        FD                  1/17/2006     TRICHLOROETHENE                                    ug/L
CDM10A-GW-041        FD                  1/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM10A-GW-041        FD                  1/17/2006     VINYL CHLORIDE                                     ug/L
CDM15A-GW-041        N                   1/17/2006     1,1-DICHLOROETHANE                  0.64           ug/L
CDM15A-GW-041        N                   1/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM15A-GW-041        N                   1/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM15A-GW-041        N                   1/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM15A-GW-041        N                   1/17/2006     1,2-DICHLOROPROPANE                 1.4            ug/L
CDM15A-GW-041        N                   1/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM15A-GW-041        N                   1/17/2006     BENZENE                                            ug/L
CDM15A-GW-041        N                   1/17/2006     CHLOROBENZENE                                      ug/L
CDM15A-GW-041        N                   1/17/2006     CHLOROFORM                                         ug/L
CDM15A-GW-041        N                   1/17/2006     CIS-1,2-DICHLOROETHENE              54             ug/L
CDM15A-GW-041        N                   1/17/2006     TETRACHLOROETHENE                   9.8            ug/L
CDM15A-GW-041        N                   1/17/2006     TOLUENE                                            ug/L
CDM15A-GW-041        N                   1/17/2006     TRANS-1,2-DICHLOROETHENE            1.4            ug/L
CDM15A-GW-041        N                   1/17/2006     TRICHLOROETHENE                     3.9            ug/L
CDM15A-GW-041        N                   1/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM15A-GW-041        N                   1/17/2006     VINYL CHLORIDE                      1.5            ug/L
CDM15B2-GW-041       N                   1/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM15B2-GW-041       N                   1/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM15B2-GW-041       N                   1/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM15B2-GW-041       N                   1/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM15B2-GW-041       N                   1/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM15B2-GW-041       N                   1/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM15B2-GW-041       N                   1/17/2006     BENZENE                                            ug/L
CDM15B2-GW-041       N                   1/17/2006     CHLOROBENZENE                                      ug/L
CDM15B2-GW-041       N                   1/17/2006     CHLOROFORM                                         ug/L
CDM15B2-GW-041       N                   1/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM15B2-GW-041       N                   1/17/2006     TETRACHLOROETHENE                   6              ug/L
CDM15B2-GW-041       N                   1/17/2006     TOLUENE                                            ug/L
CDM15B2-GW-041       N                   1/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM15B2-GW-041       N                   1/17/2006     TRICHLOROETHENE                     0.8            ug/L
CDM15B2-GW-041       N                   1/17/2006     TRICHLOROFLUOROMETHANE              1              ug/L
CDM15B2-GW-041       N                   1/17/2006     VINYL CHLORIDE                                     ug/L
CDM15B-GW-041        N                   1/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM15B-GW-041        N                   1/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM15B-GW-041        N                   1/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM15B-GW-041        N                   1/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM15B-GW-041        N                   1/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM15B-GW-041        N                   1/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM15B-GW-041        N                   1/17/2006     BENZENE                                            ug/L
CDM15B-GW-041        N                   1/17/2006     CHLOROBENZENE                                      ug/L
CDM15B-GW-041        N                   1/17/2006     CHLOROFORM                                         ug/L
CDM15B-GW-041        N                   1/17/2006     CIS-1,2-DICHLOROETHENE              0.58           ug/L
CDM15B-GW-041        N                   1/17/2006     TETRACHLOROETHENE                   23             ug/L
CDM15B-GW-041        N                   1/17/2006     TOLUENE                                            ug/L
CDM15B-GW-041        N                   1/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM15B-GW-041        N                   1/17/2006     TRICHLOROETHENE                     2              ug/L
CDM15B-GW-041        N                   1/17/2006     TRICHLOROFLUOROMETHANE              4.5            ug/L
CDM15B-GW-041        N                   1/17/2006     VINYL CHLORIDE                                     ug/L
PZ2A-GW-041          N                   1/17/2006     1,1-DICHLOROETHANE                                 ug/L
PZ2A-GW-041          N                   1/17/2006     1,1-DICHLOROETHYLENE                               ug/L
PZ2A-GW-041          N                   1/17/2006     1,2-DICHLOROBENZENE                                ug/L
PZ2A-GW-041          N                   1/17/2006     1,2-DICHLOROETHANE                                 ug/L
PZ2A-GW-041          N                   1/17/2006     1,2-DICHLOROPROPANE                                ug/L
PZ2A-GW-041          N                   1/17/2006     1,4-DICHLOROBENZENE                                ug/L
PZ2A-GW-041          N                   1/17/2006     BENZENE                                            ug/L
PZ2A-GW-041          N                   1/17/2006     CHLOROBENZENE                                      ug/L
PZ2A-GW-041          N                   1/17/2006     CHLOROFORM                                         ug/L
PZ2A-GW-041          N                   1/17/2006     CIS-1,2-DICHLOROETHENE              10             ug/L
PZ2A-GW-041          N                   1/17/2006     TETRACHLOROETHENE                   2.3            ug/L
PZ2A-GW-041          N                   1/17/2006     TOLUENE                                            ug/L
PZ2A-GW-041          N                   1/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
PZ2A-GW-041          N                   1/17/2006     TRICHLOROETHENE                     1.1            ug/L
PZ2A-GW-041          N                   1/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
PZ2A-GW-041          N                   1/17/2006     VINYL CHLORIDE                                     ug/L
PZ2B-GW-041          N                   1/17/2006     1,1-DICHLOROETHANE                                 ug/L
PZ2B-GW-041          N                   1/17/2006     1,1-DICHLOROETHYLENE                               ug/L
PZ2B-GW-041          N                   1/17/2006     1,2-DICHLOROBENZENE                                ug/L



                                                                                1 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
PZ2B-GW-041          N                   1/17/2006     1,2-DICHLOROETHANE                                 ug/L
PZ2B-GW-041          N                   1/17/2006     1,2-DICHLOROPROPANE                                ug/L
PZ2B-GW-041          N                   1/17/2006     1,4-DICHLOROBENZENE                                ug/L
PZ2B-GW-041          N                   1/17/2006     BENZENE                                            ug/L
PZ2B-GW-041          N                   1/17/2006     CHLOROBENZENE                                      ug/L
PZ2B-GW-041          N                   1/17/2006     CHLOROFORM                                         ug/L
PZ2B-GW-041          N                   1/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
PZ2B-GW-041          N                   1/17/2006     TETRACHLOROETHENE                                  ug/L
PZ2B-GW-041          N                   1/17/2006     TOLUENE                                            ug/L
PZ2B-GW-041          N                   1/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
PZ2B-GW-041          N                   1/17/2006     TRICHLOROETHENE                                    ug/L
PZ2B-GW-041          N                   1/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
PZ2B-GW-041          N                   1/17/2006     VINYL CHLORIDE                                     ug/L
PZ4B-GW-041          N                   1/17/2006     1,1-DICHLOROETHANE                                 ug/L
PZ4B-GW-041          N                   1/17/2006     1,1-DICHLOROETHYLENE                               ug/L
PZ4B-GW-041          N                   1/17/2006     1,2-DICHLOROBENZENE                                ug/L
PZ4B-GW-041          N                   1/17/2006     1,2-DICHLOROETHANE                                 ug/L
PZ4B-GW-041          N                   1/17/2006     1,2-DICHLOROPROPANE                                ug/L
PZ4B-GW-041          N                   1/17/2006     1,4-DICHLOROBENZENE                                ug/L
PZ4B-GW-041          N                   1/17/2006     BENZENE                                            ug/L
PZ4B-GW-041          N                   1/17/2006     CHLOROBENZENE                                      ug/L
PZ4B-GW-041          N                   1/17/2006     CHLOROFORM                                         ug/L
PZ4B-GW-041          N                   1/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
PZ4B-GW-041          N                   1/17/2006     TETRACHLOROETHENE                   0.72           ug/L
PZ4B-GW-041          N                   1/17/2006     TOLUENE                                            ug/L
PZ4B-GW-041          N                   1/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
PZ4B-GW-041          N                   1/17/2006     TRICHLOROETHENE                                    ug/L
PZ4B-GW-041          N                   1/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
PZ4B-GW-041          N                   1/17/2006     VINYL CHLORIDE                                     ug/L
CDM10B-GW-041        FD                  1/18/2006     1,1-DICHLOROETHANE                                 ug/L
CDM10B-GW-041        FD                  1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM10B-GW-041        FD                  1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM10B-GW-041        FD                  1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM10B-GW-041        FD                  1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM10B-GW-041        FD                  1/18/2006     1,4-DICHLOROBENZENE                                ug/L
CDM10B-GW-041        FD                  1/18/2006     BENZENE                                            ug/L
CDM10B-GW-041        FD                  1/18/2006     CHLOROBENZENE                                      ug/L
CDM10B-GW-041        FD                  1/18/2006     CHLOROFORM                                         ug/L
CDM10B-GW-041        FD                  1/18/2006     CIS-1,2-DICHLOROETHENE              0.59           ug/L
CDM10B-GW-041        FD                  1/18/2006     TETRACHLOROETHENE                   1.3            ug/L
CDM10B-GW-041        FD                  1/18/2006     TOLUENE                                            ug/L
CDM10B-GW-041        FD                  1/18/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM10B-GW-041        FD                  1/18/2006     TRICHLOROETHENE                                    ug/L
CDM10B-GW-041        FD                  1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM10B-GW-041        FD                  1/18/2006     VINYL CHLORIDE                                     ug/L
CDM12A-GW-041        N                   1/18/2006     1,1-DICHLOROETHANE                  4.7            ug/L
CDM12A-GW-041        N                   1/18/2006     1,1-DICHLOROETHYLENE                0.55           ug/L
CDM12A-GW-041        N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM12A-GW-041        N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM12A-GW-041        N                   1/18/2006     1,2-DICHLOROPROPANE                 1.5            ug/L
CDM12A-GW-041        N                   1/18/2006     1,4-DICHLOROBENZENE                 1.4            ug/L
CDM12A-GW-041        N                   1/18/2006     BENZENE                             0.85           ug/L
CDM12A-GW-041        N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM12A-GW-041        N                   1/18/2006     CHLOROFORM                                         ug/L
CDM12A-GW-041        N                   1/18/2006     CIS-1,2-DICHLOROETHENE              170            ug/L
CDM12A-GW-041        N                   1/18/2006     TETRACHLOROETHENE                   22             ug/L
CDM12A-GW-041        N                   1/18/2006     TOLUENE                                            ug/L
CDM12A-GW-041        N                   1/18/2006     TRANS-1,2-DICHLOROETHENE            12             ug/L
CDM12A-GW-041        N                   1/18/2006     TRICHLOROETHENE                     17             ug/L
CDM12A-GW-041        N                   1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM12A-GW-041        N                   1/18/2006     VINYL CHLORIDE                      49             ug/L
CDM12B-GW-041        N                   1/18/2006     1,1-DICHLOROETHANE                  1.2            ug/L
CDM12B-GW-041        N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM12B-GW-041        N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM12B-GW-041        N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM12B-GW-041        N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM12B-GW-041        N                   1/18/2006     1,4-DICHLOROBENZENE                 0.53           ug/L
CDM12B-GW-041        N                   1/18/2006     BENZENE                                            ug/L
CDM12B-GW-041        N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM12B-GW-041        N                   1/18/2006     CHLOROFORM                                         ug/L
CDM12B-GW-041        N                   1/18/2006     CIS-1,2-DICHLOROETHENE              16             ug/L
CDM12B-GW-041        N                   1/18/2006     TETRACHLOROETHENE                   23             ug/L
CDM12B-GW-041        N                   1/18/2006     TOLUENE                                            ug/L
CDM12B-GW-041        N                   1/18/2006     TRANS-1,2-DICHLOROETHENE            1.4            ug/L
CDM12B-GW-041        N                   1/18/2006     TRICHLOROETHENE                     7.8            ug/L
CDM12B-GW-041        N                   1/18/2006     TRICHLOROFLUOROMETHANE              0.61           ug/L
CDM12B-GW-041        N                   1/18/2006     VINYL CHLORIDE                      5.4            ug/L
CDM13A-GW-041        N                   1/18/2006     1,1-DICHLOROETHANE                  2.2            ug/L
CDM13A-GW-041        N                   1/18/2006     1,1-DICHLOROETHYLENE                0.61           ug/L
CDM13A-GW-041        N                   1/18/2006     1,2-DICHLOROBENZENE                 0.8            ug/L
CDM13A-GW-041        N                   1/18/2006     1,2-DICHLOROETHANE                  1              ug/L
CDM13A-GW-041        N                   1/18/2006     1,2-DICHLOROPROPANE                 2.9            ug/L
CDM13A-GW-041        N                   1/18/2006     1,4-DICHLOROBENZENE                 8.6            ug/L



                                                                                2 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
CDM13A-GW-041        N                   1/18/2006     BENZENE                                            ug/L
CDM13A-GW-041        N                   1/18/2006     CHLOROBENZENE                       0.83           ug/L
CDM13A-GW-041        N                   1/18/2006     CHLOROFORM                                         ug/L
CDM13A-GW-041        N                   1/18/2006     CIS-1,2-DICHLOROETHENE              180            ug/L
CDM13A-GW-041        N                   1/18/2006     TETRACHLOROETHENE                   15             ug/L
CDM13A-GW-041        N                   1/18/2006     TOLUENE                                            ug/L
CDM13A-GW-041        N                   1/18/2006     TRANS-1,2-DICHLOROETHENE            8.1            ug/L
CDM13A-GW-041        N                   1/18/2006     TRICHLOROETHENE                     28             ug/L
CDM13A-GW-041        N                   1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM13A-GW-041        N                   1/18/2006     VINYL CHLORIDE                      4              ug/L
CDM13B2-GW-041       N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
CDM13B2-GW-041       N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM13B2-GW-041       N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM13B2-GW-041       N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM13B2-GW-041       N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM13B2-GW-041       N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
CDM13B2-GW-041       N                   1/18/2006     BENZENE                                            ug/L
CDM13B2-GW-041       N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM13B2-GW-041       N                   1/18/2006     CHLOROFORM                                         ug/L
CDM13B2-GW-041       N                   1/18/2006     CIS-1,2-DICHLOROETHENE              0.64           ug/L
CDM13B2-GW-041       N                   1/18/2006     TETRACHLOROETHENE                   3.8            ug/L
CDM13B2-GW-041       N                   1/18/2006     TOLUENE                                            ug/L
CDM13B2-GW-041       N                   1/18/2006     TRANS-1,2-DICHLOROETHENE            0.61           ug/L
CDM13B2-GW-041       N                   1/18/2006     TRICHLOROETHENE                     1.6            ug/L
CDM13B2-GW-041       N                   1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM13B2-GW-041       N                   1/18/2006     VINYL CHLORIDE                      1.7            ug/L
CDM13B-GW-041        N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
CDM13B-GW-041        N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM13B-GW-041        N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM13B-GW-041        N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM13B-GW-041        N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM13B-GW-041        N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
CDM13B-GW-041        N                   1/18/2006     BENZENE                                            ug/L
CDM13B-GW-041        N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM13B-GW-041        N                   1/18/2006     CHLOROFORM                                         ug/L
CDM13B-GW-041        N                   1/18/2006     CIS-1,2-DICHLOROETHENE              2.6            ug/L
CDM13B-GW-041        N                   1/18/2006     TETRACHLOROETHENE                   8              ug/L
CDM13B-GW-041        N                   1/18/2006     TOLUENE                                            ug/L
CDM13B-GW-041        N                   1/18/2006     TRANS-1,2-DICHLOROETHENE            0.79           ug/L
CDM13B-GW-041        N                   1/18/2006     TRICHLOROETHENE                     3.4            ug/L
CDM13B-GW-041        N                   1/18/2006     TRICHLOROFLUOROMETHANE              1.2            ug/L
CDM13B-GW-041        N                   1/18/2006     VINYL CHLORIDE                      5.5            ug/L
CDM13C-GW-041        N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
CDM13C-GW-041        N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM13C-GW-041        N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM13C-GW-041        N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM13C-GW-041        N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM13C-GW-041        N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
CDM13C-GW-041        N                   1/18/2006     BENZENE                                            ug/L
CDM13C-GW-041        N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM13C-GW-041        N                   1/18/2006     CHLOROFORM                                         ug/L
CDM13C-GW-041        N                   1/18/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM13C-GW-041        N                   1/18/2006     TETRACHLOROETHENE                                  ug/L
CDM13C-GW-041        N                   1/18/2006     TOLUENE                                            ug/L
CDM13C-GW-041        N                   1/18/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM13C-GW-041        N                   1/18/2006     TRICHLOROETHENE                                    ug/L
CDM13C-GW-041        N                   1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM13C-GW-041        N                   1/18/2006     VINYL CHLORIDE                                     ug/L
CDM8A-GW-041         N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
CDM8A-GW-041         N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM8A-GW-041         N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM8A-GW-041         N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM8A-GW-041         N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM8A-GW-041         N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
CDM8A-GW-041         N                   1/18/2006     BENZENE                                            ug/L
CDM8A-GW-041         N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM8A-GW-041         N                   1/18/2006     CHLOROFORM                                         ug/L
CDM8A-GW-041         N                   1/18/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM8A-GW-041         N                   1/18/2006     TETRACHLOROETHENE                                  ug/L
CDM8A-GW-041         N                   1/18/2006     TOLUENE                                            ug/L
CDM8A-GW-041         N                   1/18/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM8A-GW-041         N                   1/18/2006     TRICHLOROETHENE                                    ug/L
CDM8A-GW-041         N                   1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM8A-GW-041         N                   1/18/2006     VINYL CHLORIDE                                     ug/L
CDM8B-GW-041         N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
CDM8B-GW-041         N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM8B-GW-041         N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM8B-GW-041         N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM8B-GW-041         N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM8B-GW-041         N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
CDM8B-GW-041         N                   1/18/2006     BENZENE                                            ug/L
CDM8B-GW-041         N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM8B-GW-041         N                   1/18/2006     CHLOROFORM                                         ug/L



                                                                                3 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
CDM8B-GW-041         N                   1/18/2006     CIS-1,2-DICHLOROETHENE              2              ug/L
CDM8B-GW-041         N                   1/18/2006     TETRACHLOROETHENE                   1.8            ug/L
CDM8B-GW-041         N                   1/18/2006     TOLUENE                                            ug/L
CDM8B-GW-041         N                   1/18/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM8B-GW-041         N                   1/18/2006     TRICHLOROETHENE                                    ug/L
CDM8B-GW-041         N                   1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM8B-GW-041         N                   1/18/2006     VINYL CHLORIDE                                     ug/L
CDM8C-GW-041         N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
CDM8C-GW-041         N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM8C-GW-041         N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
CDM8C-GW-041         N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
CDM8C-GW-041         N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
CDM8C-GW-041         N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
CDM8C-GW-041         N                   1/18/2006     BENZENE                                            ug/L
CDM8C-GW-041         N                   1/18/2006     CHLOROBENZENE                                      ug/L
CDM8C-GW-041         N                   1/18/2006     CHLOROFORM                                         ug/L
CDM8C-GW-041         N                   1/18/2006     CIS-1,2-DICHLOROETHENE              0.69           ug/L
CDM8C-GW-041         N                   1/18/2006     TETRACHLOROETHENE                   1.3            ug/L
CDM8C-GW-041         N                   1/18/2006     TOLUENE                                            ug/L
CDM8C-GW-041         N                   1/18/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM8C-GW-041         N                   1/18/2006     TRICHLOROETHENE                                    ug/L
CDM8C-GW-041         N                   1/18/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM8C-GW-041         N                   1/18/2006     VINYL CHLORIDE                                     ug/L
PZ5B2-GW-041         N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
PZ5B2-GW-041         N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
PZ5B2-GW-041         N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
PZ5B2-GW-041         N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
PZ5B2-GW-041         N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
PZ5B2-GW-041         N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
PZ5B2-GW-041         N                   1/18/2006     BENZENE                                            ug/L
PZ5B2-GW-041         N                   1/18/2006     CHLOROBENZENE                                      ug/L
PZ5B2-GW-041         N                   1/18/2006     CHLOROFORM                                         ug/L
PZ5B2-GW-041         N                   1/18/2006     CIS-1,2-DICHLOROETHENE              1              ug/L
PZ5B2-GW-041         N                   1/18/2006     TETRACHLOROETHENE                   9.9            ug/L
PZ5B2-GW-041         N                   1/18/2006     TOLUENE                                            ug/L
PZ5B2-GW-041         N                   1/18/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
PZ5B2-GW-041         N                   1/18/2006     TRICHLOROETHENE                     3.9            ug/L
PZ5B2-GW-041         N                   1/18/2006     TRICHLOROFLUOROMETHANE              0.88           ug/L
PZ5B2-GW-041         N                   1/18/2006     VINYL CHLORIDE                                     ug/L
PZ5B-GW-041          N                   1/18/2006     1,1-DICHLOROETHANE                  6              ug/L
PZ5B-GW-041          N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
PZ5B-GW-041          N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
PZ5B-GW-041          N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
PZ5B-GW-041          N                   1/18/2006     1,2-DICHLOROPROPANE                 0.63           ug/L
PZ5B-GW-041          N                   1/18/2006     1,4-DICHLOROBENZENE                 3              ug/L
PZ5B-GW-041          N                   1/18/2006     BENZENE                             0.73           ug/L
PZ5B-GW-041          N                   1/18/2006     CHLOROBENZENE                                      ug/L
PZ5B-GW-041          N                   1/18/2006     CHLOROFORM                                         ug/L
PZ5B-GW-041          N                   1/18/2006     CIS-1,2-DICHLOROETHENE              7.2            ug/L
PZ5B-GW-041          N                   1/18/2006     TETRACHLOROETHENE                   95             ug/L
PZ5B-GW-041          N                   1/18/2006     TOLUENE                                            ug/L
PZ5B-GW-041          N                   1/18/2006     TRANS-1,2-DICHLOROETHENE            3.2            ug/L
PZ5B-GW-041          N                   1/18/2006     TRICHLOROETHENE                     7.9            ug/L
PZ5B-GW-041          N                   1/18/2006     TRICHLOROFLUOROMETHANE              0.69           ug/L
PZ5B-GW-041          N                   1/18/2006     VINYL CHLORIDE                      58             ug/L
PZ5C-GW-041          N                   1/18/2006     1,1-DICHLOROETHANE                                 ug/L
PZ5C-GW-041          N                   1/18/2006     1,1-DICHLOROETHYLENE                               ug/L
PZ5C-GW-041          N                   1/18/2006     1,2-DICHLOROBENZENE                                ug/L
PZ5C-GW-041          N                   1/18/2006     1,2-DICHLOROETHANE                                 ug/L
PZ5C-GW-041          N                   1/18/2006     1,2-DICHLOROPROPANE                                ug/L
PZ5C-GW-041          N                   1/18/2006     1,4-DICHLOROBENZENE                                ug/L
PZ5C-GW-041          N                   1/18/2006     BENZENE                                            ug/L
PZ5C-GW-041          N                   1/18/2006     CHLOROBENZENE                                      ug/L
PZ5C-GW-041          N                   1/18/2006     CHLOROFORM                                         ug/L
PZ5C-GW-041          N                   1/18/2006     CIS-1,2-DICHLOROETHENE                             ug/L
PZ5C-GW-041          N                   1/18/2006     TETRACHLOROETHENE                   10             ug/L
PZ5C-GW-041          N                   1/18/2006     TOLUENE                                            ug/L
PZ5C-GW-041          N                   1/18/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
PZ5C-GW-041          N                   1/18/2006     TRICHLOROETHENE                     2.9            ug/L
PZ5C-GW-041          N                   1/18/2006     TRICHLOROFLUOROMETHANE              0.91           ug/L
PZ5C-GW-041          N                   1/18/2006     VINYL CHLORIDE                                     ug/L
CDM10C-GW-041        FD                  1/19/2006     1,1-DICHLOROETHANE                  0.77           ug/L
CDM10C-GW-041        FD                  1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM10C-GW-041        FD                  1/19/2006     1,2-DICHLOROBENZENE                                ug/L
CDM10C-GW-041        FD                  1/19/2006     1,2-DICHLOROETHANE                                 ug/L
CDM10C-GW-041        FD                  1/19/2006     1,2-DICHLOROPROPANE                 0.85           ug/L
CDM10C-GW-041        FD                  1/19/2006     1,4-DICHLOROBENZENE                 2.7            ug/L
CDM10C-GW-041        FD                  1/19/2006     BENZENE                                            ug/L
CDM10C-GW-041        FD                  1/19/2006     CHLOROBENZENE                                      ug/L
CDM10C-GW-041        FD                  1/19/2006     CHLOROFORM                                         ug/L
CDM10C-GW-041        FD                  1/19/2006     CIS-1,2-DICHLOROETHENE              29             ug/L
CDM10C-GW-041        FD                  1/19/2006     TETRACHLOROETHENE                   15             ug/L
CDM10C-GW-041        FD                  1/19/2006     TOLUENE                                            ug/L



                                                                                4 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
CDM10C-GW-041        FD                  1/19/2006     TRANS-1,2-DICHLOROETHENE            2.7            ug/L
CDM10C-GW-041        FD                  1/19/2006     TRICHLOROETHENE                     11             ug/L
CDM10C-GW-041        FD                  1/19/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM10C-GW-041        FD                  1/19/2006     VINYL CHLORIDE                      1.7            ug/L
CDM4A-GW-041         N                   1/19/2006     1,1-DICHLOROETHANE                                 ug/L
CDM4A-GW-041         N                   1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM4A-GW-041         N                   1/19/2006     1,2-DICHLOROBENZENE                                ug/L
CDM4A-GW-041         N                   1/19/2006     1,2-DICHLOROETHANE                                 ug/L
CDM4A-GW-041         N                   1/19/2006     1,2-DICHLOROPROPANE                                ug/L
CDM4A-GW-041         N                   1/19/2006     1,4-DICHLOROBENZENE                                ug/L
CDM4A-GW-041         N                   1/19/2006     BENZENE                                            ug/L
CDM4A-GW-041         N                   1/19/2006     CHLOROBENZENE                                      ug/L
CDM4A-GW-041         N                   1/19/2006     CHLOROFORM                                         ug/L
CDM4A-GW-041         N                   1/19/2006     CIS-1,2-DICHLOROETHENE              1.1            ug/L
CDM4A-GW-041         N                   1/19/2006     TETRACHLOROETHENE                   2.5            ug/L
CDM4A-GW-041         N                   1/19/2006     TOLUENE                                            ug/L
CDM4A-GW-041         N                   1/19/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM4A-GW-041         N                   1/19/2006     TRICHLOROETHENE                     1.2            ug/L
CDM4A-GW-041         N                   1/19/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM4A-GW-041         N                   1/19/2006     VINYL CHLORIDE                                     ug/L
CDM4B-GW-041         N                   1/19/2006     1,1-DICHLOROETHANE                  1.7            ug/L
CDM4B-GW-041         N                   1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM4B-GW-041         N                   1/19/2006     1,2-DICHLOROBENZENE                                ug/L
CDM4B-GW-041         N                   1/19/2006     1,2-DICHLOROETHANE                                 ug/L
CDM4B-GW-041         N                   1/19/2006     1,2-DICHLOROPROPANE                 0.54           ug/L
CDM4B-GW-041         N                   1/19/2006     1,4-DICHLOROBENZENE                                ug/L
CDM4B-GW-041         N                   1/19/2006     BENZENE                                            ug/L
CDM4B-GW-041         N                   1/19/2006     CHLOROBENZENE                                      ug/L
CDM4B-GW-041         N                   1/19/2006     CHLOROFORM                                         ug/L
CDM4B-GW-041         N                   1/19/2006     CIS-1,2-DICHLOROETHENE              10             ug/L
CDM4B-GW-041         N                   1/19/2006     TETRACHLOROETHENE                   45             ug/L
CDM4B-GW-041         N                   1/19/2006     TOLUENE                                            ug/L
CDM4B-GW-041         N                   1/19/2006     TRANS-1,2-DICHLOROETHENE            2              ug/L
CDM4B-GW-041         N                   1/19/2006     TRICHLOROETHENE                     25             ug/L
CDM4B-GW-041         N                   1/19/2006     TRICHLOROFLUOROMETHANE              3.4            ug/L
CDM4B-GW-041         N                   1/19/2006     VINYL CHLORIDE                                     ug/L
CDM5A-GW-041         N                   1/19/2006     1,1-DICHLOROETHANE                                 ug/L
CDM5A-GW-041         N                   1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM5A-GW-041         N                   1/19/2006     1,2-DICHLOROBENZENE                                ug/L
CDM5A-GW-041         N                   1/19/2006     1,2-DICHLOROETHANE                                 ug/L
CDM5A-GW-041         N                   1/19/2006     1,2-DICHLOROPROPANE                                ug/L
CDM5A-GW-041         N                   1/19/2006     1,4-DICHLOROBENZENE                                ug/L
CDM5A-GW-041         N                   1/19/2006     BENZENE                                            ug/L
CDM5A-GW-041         N                   1/19/2006     CHLOROBENZENE                                      ug/L
CDM5A-GW-041         N                   1/19/2006     CHLOROFORM                                         ug/L
CDM5A-GW-041         N                   1/19/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM5A-GW-041         N                   1/19/2006     TETRACHLOROETHENE                                  ug/L
CDM5A-GW-041         N                   1/19/2006     TOLUENE                                            ug/L
CDM5A-GW-041         N                   1/19/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM5A-GW-041         N                   1/19/2006     TRICHLOROETHENE                                    ug/L
CDM5A-GW-041         N                   1/19/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM5A-GW-041         N                   1/19/2006     VINYL CHLORIDE                                     ug/L
CDM5B-GW-041         N                   1/19/2006     1,1-DICHLOROETHANE                  1.8            ug/L
CDM5B-GW-041         N                   1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM5B-GW-041         N                   1/19/2006     1,2-DICHLOROBENZENE                                ug/L
CDM5B-GW-041         N                   1/19/2006     1,2-DICHLOROETHANE                                 ug/L
CDM5B-GW-041         N                   1/19/2006     1,2-DICHLOROPROPANE                                ug/L
CDM5B-GW-041         N                   1/19/2006     1,4-DICHLOROBENZENE                                ug/L
CDM5B-GW-041         N                   1/19/2006     BENZENE                                            ug/L
CDM5B-GW-041         N                   1/19/2006     CHLOROBENZENE                                      ug/L
CDM5B-GW-041         N                   1/19/2006     CHLOROFORM                                         ug/L
CDM5B-GW-041         N                   1/19/2006     CIS-1,2-DICHLOROETHENE              12             ug/L
CDM5B-GW-041         N                   1/19/2006     TETRACHLOROETHENE                   21             ug/L
CDM5B-GW-041         N                   1/19/2006     TOLUENE                                            ug/L
CDM5B-GW-041         N                   1/19/2006     TRANS-1,2-DICHLOROETHENE            0.63           ug/L
CDM5B-GW-041         N                   1/19/2006     TRICHLOROETHENE                     8              ug/L
CDM5B-GW-041         N                   1/19/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM5B-GW-041         N                   1/19/2006     VINYL CHLORIDE                                     ug/L
DW2B-GW-041          N                   1/19/2006     1,1-DICHLOROETHANE                                 ug/L
DW2B-GW-041          N                   1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
DW2B-GW-041          N                   1/19/2006     1,2-DICHLOROBENZENE                                ug/L
DW2B-GW-041          N                   1/19/2006     1,2-DICHLOROETHANE                                 ug/L
DW2B-GW-041          N                   1/19/2006     1,2-DICHLOROPROPANE                                ug/L
DW2B-GW-041          N                   1/19/2006     1,4-DICHLOROBENZENE                                ug/L
DW2B-GW-041          N                   1/19/2006     BENZENE                                            ug/L
DW2B-GW-041          N                   1/19/2006     CHLOROBENZENE                                      ug/L
DW2B-GW-041          N                   1/19/2006     CHLOROFORM                                         ug/L
DW2B-GW-041          N                   1/19/2006     CIS-1,2-DICHLOROETHENE                             ug/L
DW2B-GW-041          N                   1/19/2006     TETRACHLOROETHENE                   4.1            ug/L
DW2B-GW-041          N                   1/19/2006     TOLUENE                                            ug/L
DW2B-GW-041          N                   1/19/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
DW2B-GW-041          N                   1/19/2006     TRICHLOROETHENE                     0.65           ug/L
DW2B-GW-041          N                   1/19/2006     TRICHLOROFLUOROMETHANE              1.5            ug/L



                                                                                5 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
DW2B-GW-041          N                   1/19/2006     VINYL CHLORIDE                                     ug/L
PW5A-GW-041          N                   1/19/2006     1,1-DICHLOROETHANE                  0.78           ug/L
PW5A-GW-041          N                   1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
PW5A-GW-041          N                   1/19/2006     1,2-DICHLOROBENZENE                                ug/L
PW5A-GW-041          N                   1/19/2006     1,2-DICHLOROETHANE                                 ug/L
PW5A-GW-041          N                   1/19/2006     1,2-DICHLOROPROPANE                 0.9            ug/L
PW5A-GW-041          N                   1/19/2006     1,4-DICHLOROBENZENE                 2.7            ug/L
PW5A-GW-041          N                   1/19/2006     BENZENE                                            ug/L
PW5A-GW-041          N                   1/19/2006     CHLOROBENZENE                                      ug/L
PW5A-GW-041          N                   1/19/2006     CHLOROFORM                                         ug/L
PW5A-GW-041          N                   1/19/2006     CIS-1,2-DICHLOROETHENE              29             ug/L
PW5A-GW-041          N                   1/19/2006     TETRACHLOROETHENE                   15             ug/L
PW5A-GW-041          N                   1/19/2006     TOLUENE                                            ug/L
PW5A-GW-041          N                   1/19/2006     TRANS-1,2-DICHLOROETHENE            2.3            ug/L
PW5A-GW-041          N                   1/19/2006     TRICHLOROETHENE                     10             ug/L
PW5A-GW-041          N                   1/19/2006     TRICHLOROFLUOROMETHANE                             ug/L
PW5A-GW-041          N                   1/19/2006     VINYL CHLORIDE                      1.7            ug/L
W6-GW-041            N                   1/19/2006     1,1-DICHLOROETHANE                                 ug/L
W6-GW-041            N                   1/19/2006     1,1-DICHLOROETHYLENE                               ug/L
W6-GW-041            N                   1/19/2006     1,2-DICHLOROBENZENE                                ug/L
W6-GW-041            N                   1/19/2006     1,2-DICHLOROETHANE                                 ug/L
W6-GW-041            N                   1/19/2006     1,2-DICHLOROPROPANE                                ug/L
W6-GW-041            N                   1/19/2006     1,4-DICHLOROBENZENE                                ug/L
W6-GW-041            N                   1/19/2006     BENZENE                                            ug/L
W6-GW-041            N                   1/19/2006     CHLOROBENZENE                                      ug/L
W6-GW-041            N                   1/19/2006     CHLOROFORM                                         ug/L
W6-GW-041            N                   1/19/2006     CIS-1,2-DICHLOROETHENE                             ug/L
W6-GW-041            N                   1/19/2006     TETRACHLOROETHENE                   0.52           ug/L
W6-GW-041            N                   1/19/2006     TOLUENE                                            ug/L
W6-GW-041            N                   1/19/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
W6-GW-041            N                   1/19/2006     TRICHLOROETHENE                                    ug/L
W6-GW-041            N                   1/19/2006     TRICHLOROFLUOROMETHANE                             ug/L
W6-GW-041            N                   1/19/2006     VINYL CHLORIDE                                     ug/L
CDM10D-GW-041        FD                  1/20/2006     1,1-DICHLOROETHANE                  1.6            ug/L
CDM10D-GW-041        FD                  1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM10D-GW-041        FD                  1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM10D-GW-041        FD                  1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM10D-GW-041        FD                  1/20/2006     1,2-DICHLOROPROPANE                 0.59           ug/L
CDM10D-GW-041        FD                  1/20/2006     1,4-DICHLOROBENZENE                 2.1            ug/L
CDM10D-GW-041        FD                  1/20/2006     BENZENE                                            ug/L
CDM10D-GW-041        FD                  1/20/2006     CHLOROBENZENE                                      ug/L
CDM10D-GW-041        FD                  1/20/2006     CHLOROFORM                                         ug/L
CDM10D-GW-041        FD                  1/20/2006     CIS-1,2-DICHLOROETHENE              30             ug/L
CDM10D-GW-041        FD                  1/20/2006     TETRACHLOROETHENE                   19             ug/L
CDM10D-GW-041        FD                  1/20/2006     TOLUENE                                            ug/L
CDM10D-GW-041        FD                  1/20/2006     TRANS-1,2-DICHLOROETHENE            1.5            ug/L
CDM10D-GW-041        FD                  1/20/2006     TRICHLOROETHENE                     8.1            ug/L
CDM10D-GW-041        FD                  1/20/2006     TRICHLOROFLUOROMETHANE              0.88           ug/L
CDM10D-GW-041        FD                  1/20/2006     VINYL CHLORIDE                      3.3            ug/L
CDM16A-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM16A-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM16A-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM16A-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM16A-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM16A-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM16A-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM16A-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM16A-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM16A-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM16A-GW-041        N                   1/20/2006     TETRACHLOROETHENE                                  ug/L
CDM16A-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM16A-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM16A-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM16A-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM16A-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM16B-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM16B-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM16B-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM16B-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM16B-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM16B-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM16B-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM16B-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM16B-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM16B-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM16B-GW-041        N                   1/20/2006     TETRACHLOROETHENE                   2.6            ug/L
CDM16B-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM16B-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM16B-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM16B-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE              3.7            ug/L
CDM16B-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM16C-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM16C-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L



                                                                                6 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
CDM16C-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM16C-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM16C-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM16C-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM16C-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM16C-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM16C-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM16C-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM16C-GW-041        N                   1/20/2006     TETRACHLOROETHENE                                  ug/L
CDM16C-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM16C-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM16C-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM16C-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM16C-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM17A-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM17A-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM17A-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM17A-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM17A-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM17A-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM17A-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM17A-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM17A-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM17A-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM17A-GW-041        N                   1/20/2006     TETRACHLOROETHENE                                  ug/L
CDM17A-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM17A-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM17A-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM17A-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM17A-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM17B-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM17B-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM17B-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM17B-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM17B-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM17B-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM17B-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM17B-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM17B-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM17B-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM17B-GW-041        N                   1/20/2006     TETRACHLOROETHENE                   0.52           ug/L
CDM17B-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM17B-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM17B-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM17B-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM17B-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM17C-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM17C-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM17C-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM17C-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM17C-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM17C-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM17C-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM17C-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM17C-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM17C-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM17C-GW-041        N                   1/20/2006     TETRACHLOROETHENE                                  ug/L
CDM17C-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM17C-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM17C-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM17C-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM17C-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM18A-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM18A-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM18A-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM18A-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM18A-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM18A-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM18A-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM18A-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM18A-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM18A-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM18A-GW-041        N                   1/20/2006     TETRACHLOROETHENE                                  ug/L
CDM18A-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM18A-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM18A-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM18A-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM18A-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM18B-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM18B-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM18B-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM18B-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM18B-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L



                                                                                7 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
CDM18B-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM18B-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM18B-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM18B-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM18B-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM18B-GW-041        N                   1/20/2006     TETRACHLOROETHENE                                  ug/L
CDM18B-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM18B-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM18B-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM18B-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM18B-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
CDM18C-GW-041        N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
CDM18C-GW-041        N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM18C-GW-041        N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
CDM18C-GW-041        N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
CDM18C-GW-041        N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
CDM18C-GW-041        N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
CDM18C-GW-041        N                   1/20/2006     BENZENE                                            ug/L
CDM18C-GW-041        N                   1/20/2006     CHLOROBENZENE                                      ug/L
CDM18C-GW-041        N                   1/20/2006     CHLOROFORM                                         ug/L
CDM18C-GW-041        N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM18C-GW-041        N                   1/20/2006     TETRACHLOROETHENE                   0.73           ug/L
CDM18C-GW-041        N                   1/20/2006     TOLUENE                                            ug/L
CDM18C-GW-041        N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM18C-GW-041        N                   1/20/2006     TRICHLOROETHENE                                    ug/L
CDM18C-GW-041        N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM18C-GW-041        N                   1/20/2006     VINYL CHLORIDE                                     ug/L
EFF-GW-041           N                   1/20/2006     1,1-DICHLOROETHANE                                 ug/L
EFF-GW-041           N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
EFF-GW-041           N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
EFF-GW-041           N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
EFF-GW-041           N                   1/20/2006     1,2-DICHLOROPROPANE                                ug/L
EFF-GW-041           N                   1/20/2006     1,4-DICHLOROBENZENE                                ug/L
EFF-GW-041           N                   1/20/2006     BENZENE                                            ug/L
EFF-GW-041           N                   1/20/2006     CHLOROBENZENE                                      ug/L
EFF-GW-041           N                   1/20/2006     CHLOROFORM                                         ug/L
EFF-GW-041           N                   1/20/2006     CIS-1,2-DICHLOROETHENE                             ug/L
EFF-GW-041           N                   1/20/2006     TETRACHLOROETHENE                                  ug/L
EFF-GW-041           N                   1/20/2006     TOLUENE                                            ug/L
EFF-GW-041           N                   1/20/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
EFF-GW-041           N                   1/20/2006     TRICHLOROETHENE                                    ug/L
EFF-GW-041           N                   1/20/2006     TRICHLOROFLUOROMETHANE                             ug/L
EFF-GW-041           N                   1/20/2006     VINYL CHLORIDE                                     ug/L
INF-GW-041           N                   1/20/2006     1,1-DICHLOROETHANE                  1.7            ug/L
INF-GW-041           N                   1/20/2006     1,1-DICHLOROETHYLENE                               ug/L
INF-GW-041           N                   1/20/2006     1,2-DICHLOROBENZENE                                ug/L
INF-GW-041           N                   1/20/2006     1,2-DICHLOROETHANE                                 ug/L
INF-GW-041           N                   1/20/2006     1,2-DICHLOROPROPANE                 0.57           ug/L
INF-GW-041           N                   1/20/2006     1,4-DICHLOROBENZENE                 2              ug/L
INF-GW-041           N                   1/20/2006     BENZENE                                            ug/L
INF-GW-041           N                   1/20/2006     CHLOROBENZENE                                      ug/L
INF-GW-041           N                   1/20/2006     CHLOROFORM                                         ug/L
INF-GW-041           N                   1/20/2006     CIS-1,2-DICHLOROETHENE              31             ug/L
INF-GW-041           N                   1/20/2006     TETRACHLOROETHENE                   19             ug/L
INF-GW-041           N                   1/20/2006     TOLUENE                                            ug/L
INF-GW-041           N                   1/20/2006     TRANS-1,2-DICHLOROETHENE            1.6            ug/L
INF-GW-041           N                   1/20/2006     TRICHLOROETHENE                     8.5            ug/L
INF-GW-041           N                   1/20/2006     TRICHLOROFLUOROMETHANE              0.93           ug/L
INF-GW-041           N                   1/20/2006     VINYL CHLORIDE                      3.5            ug/L
CDM10A-GW-042        FD                  4/17/2006     1,1-DICHLOROETHANE                  0.52           ug/L
CDM10A-GW-042        FD                  4/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM10A-GW-042        FD                  4/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM10A-GW-042        FD                  4/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM10A-GW-042        FD                  4/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM10A-GW-042        FD                  4/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM10A-GW-042        FD                  4/17/2006     BENZENE                                            ug/L
CDM10A-GW-042        FD                  4/17/2006     CHLOROBENZENE                                      ug/L
CDM10A-GW-042        FD                  4/17/2006     CHLOROFORM                                         ug/L
CDM10A-GW-042        FD                  4/17/2006     CIS-1,2-DICHLOROETHENE              1.1            ug/L
CDM10A-GW-042        FD                  4/17/2006     TETRACHLOROETHENE                   13             ug/L
CDM10A-GW-042        FD                  4/17/2006     TOLUENE                                            ug/L
CDM10A-GW-042        FD                  4/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM10A-GW-042        FD                  4/17/2006     TRICHLOROETHENE                     3.4            ug/L
CDM10A-GW-042        FD                  4/17/2006     TRICHLOROFLUOROMETHANE              0.73           ug/L
CDM10A-GW-042        FD                  4/17/2006     VINYL CHLORIDE                                     ug/L
CDM15A-GW-042        N                   4/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM15A-GW-042        N                   4/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM15A-GW-042        N                   4/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM15A-GW-042        N                   4/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM15A-GW-042        N                   4/17/2006     1,2-DICHLOROPROPANE                 0.55           ug/L
CDM15A-GW-042        N                   4/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM15A-GW-042        N                   4/17/2006     BENZENE                                            ug/L
CDM15A-GW-042        N                   4/17/2006     CHLOROBENZENE                                      ug/L



                                                                                8 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                       result_value   result_unit
CDM15A-GW-042        N                   4/17/2006     CHLOROFORM                                         ug/L
CDM15A-GW-042        N                   4/17/2006     CIS-1,2-DICHLOROETHENE              28             ug/L
CDM15A-GW-042        N                   4/17/2006     TETRACHLOROETHENE                   5.9            ug/L
CDM15A-GW-042        N                   4/17/2006     TOLUENE                                            ug/L
CDM15A-GW-042        N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM15A-GW-042        N                   4/17/2006     TRICHLOROETHENE                     1.9            ug/L
CDM15A-GW-042        N                   4/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM15A-GW-042        N                   4/17/2006     VINYL CHLORIDE                                     ug/L
CDM15B2-GW-042       N                   4/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM15B2-GW-042       N                   4/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM15B2-GW-042       N                   4/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM15B2-GW-042       N                   4/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM15B2-GW-042       N                   4/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM15B2-GW-042       N                   4/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM15B2-GW-042       N                   4/17/2006     BENZENE                                            ug/L
CDM15B2-GW-042       N                   4/17/2006     CHLOROBENZENE                                      ug/L
CDM15B2-GW-042       N                   4/17/2006     CHLOROFORM                                         ug/L
CDM15B2-GW-042       N                   4/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM15B2-GW-042       N                   4/17/2006     TETRACHLOROETHENE                   5.2            ug/L
CDM15B2-GW-042       N                   4/17/2006     TOLUENE                                            ug/L
CDM15B2-GW-042       N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM15B2-GW-042       N                   4/17/2006     TRICHLOROETHENE                     0.75           ug/L
CDM15B2-GW-042       N                   4/17/2006     TRICHLOROFLUOROMETHANE              0.89           ug/L
CDM15B2-GW-042       N                   4/17/2006     VINYL CHLORIDE                                     ug/L
CDM15B-GW-042        N                   4/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM15B-GW-042        N                   4/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM15B-GW-042        N                   4/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM15B-GW-042        N                   4/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM15B-GW-042        N                   4/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM15B-GW-042        N                   4/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM15B-GW-042        N                   4/17/2006     BENZENE                                            ug/L
CDM15B-GW-042        N                   4/17/2006     CHLOROBENZENE                                      ug/L
CDM15B-GW-042        N                   4/17/2006     CHLOROFORM                                         ug/L
CDM15B-GW-042        N                   4/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM15B-GW-042        N                   4/17/2006     TETRACHLOROETHENE                   17             ug/L
CDM15B-GW-042        N                   4/17/2006     TOLUENE                                            ug/L
CDM15B-GW-042        N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM15B-GW-042        N                   4/17/2006     TRICHLOROETHENE                     1.7            ug/L
CDM15B-GW-042        N                   4/17/2006     TRICHLOROFLUOROMETHANE              3.9            ug/L
CDM15B-GW-042        N                   4/17/2006     VINYL CHLORIDE                                     ug/L
CDM15C-GW-042        N                   4/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM15C-GW-042        N                   4/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM15C-GW-042        N                   4/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM15C-GW-042        N                   4/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM15C-GW-042        N                   4/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM15C-GW-042        N                   4/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM15C-GW-042        N                   4/17/2006     BENZENE                                            ug/L
CDM15C-GW-042        N                   4/17/2006     CHLOROBENZENE                                      ug/L
CDM15C-GW-042        N                   4/17/2006     CHLOROFORM                                         ug/L
CDM15C-GW-042        N                   4/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM15C-GW-042        N                   4/17/2006     TETRACHLOROETHENE                                  ug/L
CDM15C-GW-042        N                   4/17/2006     TOLUENE                                            ug/L
CDM15C-GW-042        N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM15C-GW-042        N                   4/17/2006     TRICHLOROETHENE                                    ug/L
CDM15C-GW-042        N                   4/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM15C-GW-042        N                   4/17/2006     VINYL CHLORIDE                                     ug/L
CDM6A-GW-042         N                   4/17/2006     1,1-DICHLOROETHANE                                 ug/L
CDM6A-GW-042         N                   4/17/2006     1,1-DICHLOROETHYLENE                               ug/L
CDM6A-GW-042         N                   4/17/2006     1,2-DICHLOROBENZENE                                ug/L
CDM6A-GW-042         N                   4/17/2006     1,2-DICHLOROETHANE                                 ug/L
CDM6A-GW-042         N                   4/17/2006     1,2-DICHLOROPROPANE                                ug/L
CDM6A-GW-042         N                   4/17/2006     1,4-DICHLOROBENZENE                                ug/L
CDM6A-GW-042         N                   4/17/2006     BENZENE                                            ug/L
CDM6A-GW-042         N                   4/17/2006     CHLOROBENZENE                                      ug/L
CDM6A-GW-042         N                   4/17/2006     CHLOROFORM                                         ug/L
CDM6A-GW-042         N                   4/17/2006     CIS-1,2-DICHLOROETHENE                             ug/L
CDM6A-GW-042         N                   4/17/2006     TETRACHLOROETHENE                   3.6            ug/L
CDM6A-GW-042         N                   4/17/2006     TOLUENE                                            ug/L
CDM6A-GW-042         N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                           ug/L
CDM6A-GW-042         N                   4/17/2006     TRICHLOROETHENE                                    ug/L
CDM6A-GW-042         N                   4/17/2006     TRICHLOROFLUOROMETHANE                             ug/L
CDM6A-GW-042         N                   4/17/2006     VINYL CHLORIDE                                     ug/L
PZ2A-GW-042          N                   4/17/2006     1,1-DICHLOROETHANE                                 ug/L
PZ2A-GW-042          N                   4/17/2006     1,1-DICHLOROETHYLENE                               ug/L
PZ2A-GW-042          N                   4/17/2006     1,2-DICHLOROBENZENE                                ug/L
PZ2A-GW-042          N                   4/17/2006     1,2-DICHLOROETHANE                                 ug/L
PZ2A-GW-042          N                   4/17/2006     1,2-DICHLOROPROPANE                 0.54           ug/L
PZ2A-GW-042          N                   4/17/2006     1,4-DICHLOROBENZENE                                ug/L
PZ2A-GW-042          N                   4/17/2006     BENZENE                                            ug/L
PZ2A-GW-042          N                   4/17/2006     CHLOROBENZENE                                      ug/L
PZ2A-GW-042          N                   4/17/2006     CHLOROFORM                                         ug/L
PZ2A-GW-042          N                   4/17/2006     CIS-1,2-DICHLOROETHENE              12             ug/L
PZ2A-GW-042          N                   4/17/2006     TETRACHLOROETHENE                   2.6            ug/L



                                                                                9 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
PZ2A-GW-042          N                   4/17/2006     TOLUENE                                             ug/L
PZ2A-GW-042          N                   4/17/2006     TRANS-1,2-DICHLOROETHENE             0.58           ug/L
PZ2A-GW-042          N                   4/17/2006     TRICHLOROETHENE                      1.3            ug/L
PZ2A-GW-042          N                   4/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
PZ2A-GW-042          N                   4/17/2006     VINYL CHLORIDE                                      ug/L
PZ2B-GW-042          N                   4/17/2006     1,1-DICHLOROETHANE                                  ug/L
PZ2B-GW-042          N                   4/17/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ2B-GW-042          N                   4/17/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ2B-GW-042          N                   4/17/2006     1,2-DICHLOROETHANE                                  ug/L
PZ2B-GW-042          N                   4/17/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ2B-GW-042          N                   4/17/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ2B-GW-042          N                   4/17/2006     BENZENE                                             ug/L
PZ2B-GW-042          N                   4/17/2006     CHLOROBENZENE                                       ug/L
PZ2B-GW-042          N                   4/17/2006     CHLOROFORM                                          ug/L
PZ2B-GW-042          N                   4/17/2006     CIS-1,2-DICHLOROETHENE                              ug/L
PZ2B-GW-042          N                   4/17/2006     TETRACHLOROETHENE                                   ug/L
PZ2B-GW-042          N                   4/17/2006     TOLUENE                                             ug/L
PZ2B-GW-042          N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ2B-GW-042          N                   4/17/2006     TRICHLOROETHENE                                     ug/L
PZ2B-GW-042          N                   4/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
PZ2B-GW-042          N                   4/17/2006     VINYL CHLORIDE                                      ug/L
PZ5A-GW-042          N                   4/17/2006     1,1-DICHLOROETHANE                                  ug/L
PZ5A-GW-042          N                   4/17/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ5A-GW-042          N                   4/17/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ5A-GW-042          N                   4/17/2006     1,2-DICHLOROETHANE                                  ug/L
PZ5A-GW-042          N                   4/17/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ5A-GW-042          N                   4/17/2006     1,4-DICHLOROBENZENE                  0.68           ug/L
PZ5A-GW-042          N                   4/17/2006     BENZENE                                             ug/L
PZ5A-GW-042          N                   4/17/2006     CHLOROBENZENE                                       ug/L
PZ5A-GW-042          N                   4/17/2006     CHLOROFORM                                          ug/L
PZ5A-GW-042          N                   4/17/2006     CIS-1,2-DICHLOROETHENE               5.7            ug/L
PZ5A-GW-042          N                   4/17/2006     TETRACHLOROETHENE                                   ug/L
PZ5A-GW-042          N                   4/17/2006     TOLUENE                                             ug/L
PZ5A-GW-042          N                   4/17/2006     TRANS-1,2-DICHLOROETHENE             0.92           ug/L
PZ5A-GW-042          N                   4/17/2006     TRICHLOROETHENE                      0.88           ug/L
PZ5A-GW-042          N                   4/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
PZ5A-GW-042          N                   4/17/2006     VINYL CHLORIDE                       4.7            ug/L
PZ5B2-GW-042         N                   4/17/2006     1,1-DICHLOROETHANE                                  ug/L
PZ5B2-GW-042         N                   4/17/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ5B2-GW-042         N                   4/17/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-042         N                   4/17/2006     1,2-DICHLOROETHANE                                  ug/L
PZ5B2-GW-042         N                   4/17/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ5B2-GW-042         N                   4/17/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-042         N                   4/17/2006     BENZENE                                             ug/L
PZ5B2-GW-042         N                   4/17/2006     CHLOROBENZENE                                       ug/L
PZ5B2-GW-042         N                   4/17/2006     CHLOROFORM                                          ug/L
PZ5B2-GW-042         N                   4/17/2006     CIS-1,2-DICHLOROETHENE               0.99           ug/L
PZ5B2-GW-042         N                   4/17/2006     TETRACHLOROETHENE                    12             ug/L
PZ5B2-GW-042         N                   4/17/2006     TOLUENE                                             ug/L
PZ5B2-GW-042         N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5B2-GW-042         N                   4/17/2006     TRICHLOROETHENE                      3.3            ug/L
PZ5B2-GW-042         N                   4/17/2006     TRICHLOROFLUOROMETHANE               0.69           ug/L
PZ5B2-GW-042         N                   4/17/2006     VINYL CHLORIDE                                      ug/L
PZ5C-GW-042          N                   4/17/2006     1,1-DICHLOROETHANE                                  ug/L
PZ5C-GW-042          N                   4/17/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ5C-GW-042          N                   4/17/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ5C-GW-042          N                   4/17/2006     1,2-DICHLOROETHANE                                  ug/L
PZ5C-GW-042          N                   4/17/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ5C-GW-042          N                   4/17/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ5C-GW-042          N                   4/17/2006     BENZENE                                             ug/L
PZ5C-GW-042          N                   4/17/2006     CHLOROBENZENE                                       ug/L
PZ5C-GW-042          N                   4/17/2006     CHLOROFORM                                          ug/L
PZ5C-GW-042          N                   4/17/2006     CIS-1,2-DICHLOROETHENE               0.62           ug/L
PZ5C-GW-042          N                   4/17/2006     TETRACHLOROETHENE                    13             ug/L
PZ5C-GW-042          N                   4/17/2006     TOLUENE                                             ug/L
PZ5C-GW-042          N                   4/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5C-GW-042          N                   4/17/2006     TRICHLOROETHENE                      2.5            ug/L
PZ5C-GW-042          N                   4/17/2006     TRICHLOROFLUOROMETHANE               0.78           ug/L
PZ5C-GW-042          N                   4/17/2006     VINYL CHLORIDE                                      ug/L
CDM10B-GW-042        FD                  4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM10B-GW-042        FD                  4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10B-GW-042        FD                  4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10B-GW-042        FD                  4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10B-GW-042        FD                  4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM10B-GW-042        FD                  4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM10B-GW-042        FD                  4/18/2006     BENZENE                                             ug/L
CDM10B-GW-042        FD                  4/18/2006     CHLOROBENZENE                                       ug/L
CDM10B-GW-042        FD                  4/18/2006     CHLOROFORM                                          ug/L
CDM10B-GW-042        FD                  4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10B-GW-042        FD                  4/18/2006     TETRACHLOROETHENE                                   ug/L
CDM10B-GW-042        FD                  4/18/2006     TOLUENE                                             ug/L
CDM10B-GW-042        FD                  4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10B-GW-042        FD                  4/18/2006     TRICHLOROETHENE                                     ug/L



                                                                                10 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM10B-GW-042        FD                  4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM10B-GW-042        FD                  4/18/2006     VINYL CHLORIDE                                      ug/L
CDM17A-GW-042        N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM17A-GW-042        N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM17A-GW-042        N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM17A-GW-042        N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM17A-GW-042        N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM17A-GW-042        N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM17A-GW-042        N                   4/18/2006     BENZENE                                             ug/L
CDM17A-GW-042        N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM17A-GW-042        N                   4/18/2006     CHLOROFORM                                          ug/L
CDM17A-GW-042        N                   4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17A-GW-042        N                   4/18/2006     TETRACHLOROETHENE                                   ug/L
CDM17A-GW-042        N                   4/18/2006     TOLUENE                                             ug/L
CDM17A-GW-042        N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17A-GW-042        N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM17A-GW-042        N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM17A-GW-042        N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM17B-GW-042        N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM17B-GW-042        N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM17B-GW-042        N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM17B-GW-042        N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM17B-GW-042        N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM17B-GW-042        N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM17B-GW-042        N                   4/18/2006     BENZENE                                             ug/L
CDM17B-GW-042        N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM17B-GW-042        N                   4/18/2006     CHLOROFORM                                          ug/L
CDM17B-GW-042        N                   4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17B-GW-042        N                   4/18/2006     TETRACHLOROETHENE                                   ug/L
CDM17B-GW-042        N                   4/18/2006     TOLUENE                                             ug/L
CDM17B-GW-042        N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17B-GW-042        N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM17B-GW-042        N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM17B-GW-042        N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM17C-GW-042        N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM17C-GW-042        N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM17C-GW-042        N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM17C-GW-042        N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM17C-GW-042        N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM17C-GW-042        N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM17C-GW-042        N                   4/18/2006     BENZENE                                             ug/L
CDM17C-GW-042        N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM17C-GW-042        N                   4/18/2006     CHLOROFORM                                          ug/L
CDM17C-GW-042        N                   4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17C-GW-042        N                   4/18/2006     TETRACHLOROETHENE                                   ug/L
CDM17C-GW-042        N                   4/18/2006     TOLUENE                                             ug/L
CDM17C-GW-042        N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17C-GW-042        N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM17C-GW-042        N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM17C-GW-042        N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM3A-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM3A-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM3A-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM3A-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM3A-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM3A-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM3A-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM3A-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM3A-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM3A-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM3A-GW-042         N                   4/18/2006     TETRACHLOROETHENE                                   ug/L
CDM3A-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM3A-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM3A-GW-042         N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM3A-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM3A-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM3B-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM3B-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM3B-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM3B-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM3B-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM3B-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM3B-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM3B-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM3B-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM3B-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM3B-GW-042         N                   4/18/2006     TETRACHLOROETHENE                                   ug/L
CDM3B-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM3B-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM3B-GW-042         N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM3B-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM3B-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM4A-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L



                                                                                11 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM4A-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM4A-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM4A-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM4A-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM4A-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM4A-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM4A-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM4A-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM4A-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE               1.4            ug/L
CDM4A-GW-042         N                   4/18/2006     TETRACHLOROETHENE                    2.8            ug/L
CDM4A-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM4A-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4A-GW-042         N                   4/18/2006     TRICHLOROETHENE                      1.2            ug/L
CDM4A-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM4A-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM4B-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                   1.7            ug/L
CDM4B-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM4B-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM4B-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM4B-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM4B-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM4B-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM4B-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM4B-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM4B-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE               9.9            ug/L
CDM4B-GW-042         N                   4/18/2006     TETRACHLOROETHENE                    52             ug/L
CDM4B-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM4B-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE             2.1            ug/L
CDM4B-GW-042         N                   4/18/2006     TRICHLOROETHENE                      24             ug/L
CDM4B-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE               3.4            ug/L
CDM4B-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM4C-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM4C-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM4C-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM4C-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM4C-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM4C-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM4C-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM4C-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM4C-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM4C-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM4C-GW-042         N                   4/18/2006     TETRACHLOROETHENE                    2.5            ug/L
CDM4C-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM4C-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4C-GW-042         N                   4/18/2006     TRICHLOROETHENE                      0.73           ug/L
CDM4C-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE               0.55           ug/L
CDM4C-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM8A-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM8A-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM8A-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM8A-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM8A-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM8A-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM8A-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM8A-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM8A-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM8A-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM8A-GW-042         N                   4/18/2006     TETRACHLOROETHENE                                   ug/L
CDM8A-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM8A-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8A-GW-042         N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM8A-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM8A-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM8B-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM8B-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM8B-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM8B-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM8B-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM8B-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM8B-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM8B-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM8B-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM8B-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE               1.3            ug/L
CDM8B-GW-042         N                   4/18/2006     TETRACHLOROETHENE                    1.1            ug/L
CDM8B-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM8B-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8B-GW-042         N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM8B-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM8B-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
CDM8C-GW-042         N                   4/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM8C-GW-042         N                   4/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM8C-GW-042         N                   4/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM8C-GW-042         N                   4/18/2006     1,2-DICHLOROETHANE                                  ug/L



                                                                                12 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM8C-GW-042         N                   4/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM8C-GW-042         N                   4/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM8C-GW-042         N                   4/18/2006     BENZENE                                             ug/L
CDM8C-GW-042         N                   4/18/2006     CHLOROBENZENE                                       ug/L
CDM8C-GW-042         N                   4/18/2006     CHLOROFORM                                          ug/L
CDM8C-GW-042         N                   4/18/2006     CIS-1,2-DICHLOROETHENE               0.87           ug/L
CDM8C-GW-042         N                   4/18/2006     TETRACHLOROETHENE                    1.5            ug/L
CDM8C-GW-042         N                   4/18/2006     TOLUENE                                             ug/L
CDM8C-GW-042         N                   4/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8C-GW-042         N                   4/18/2006     TRICHLOROETHENE                                     ug/L
CDM8C-GW-042         N                   4/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM8C-GW-042         N                   4/18/2006     VINYL CHLORIDE                                      ug/L
1304J-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
1304J-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
1304J-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
1304J-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
1304J-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
1304J-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
1304J-GW-042         N                   4/19/2006     BENZENE                                             ug/L
1304J-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
1304J-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
1304J-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
1304J-GW-042         N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
1304J-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
1304J-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
1304J-GW-042         N                   4/19/2006     TRICHLOROETHENE                                     ug/L
1304J-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
1304J-GW-042         N                   4/19/2006     VINYL CHLORIDE                       0.78           ug/L
1346J-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
1346J-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
1346J-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
1346J-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
1346J-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
1346J-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
1346J-GW-042         N                   4/19/2006     BENZENE                                             ug/L
1346J-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
1346J-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
1346J-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
1346J-GW-042         N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
1346J-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
1346J-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
1346J-GW-042         N                   4/19/2006     TRICHLOROETHENE                                     ug/L
1346J-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
1346J-GW-042         N                   4/19/2006     VINYL CHLORIDE                                      ug/L
1350J-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
1350J-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
1350J-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
1350J-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
1350J-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
1350J-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
1350J-GW-042         N                   4/19/2006     BENZENE                                             ug/L
1350J-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
1350J-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
1350J-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
1350J-GW-042         N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
1350J-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
1350J-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
1350J-GW-042         N                   4/19/2006     TRICHLOROETHENE                                     ug/L
1350J-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
1350J-GW-042         N                   4/19/2006     VINYL CHLORIDE                                      ug/L
1642J-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
1642J-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
1642J-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
1642J-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
1642J-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
1642J-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
1642J-GW-042         N                   4/19/2006     BENZENE                                             ug/L
1642J-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
1642J-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
1642J-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
1642J-GW-042         N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
1642J-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
1642J-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
1642J-GW-042         N                   4/19/2006     TRICHLOROETHENE                                     ug/L
1642J-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
1642J-GW-042         N                   4/19/2006     VINYL CHLORIDE                                      ug/L
1650J-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
1650J-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
1650J-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
1650J-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
1650J-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
1650J-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
1650J-GW-042         N                   4/19/2006     BENZENE                                             ug/L



                                                                                13 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
1650J-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
1650J-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
1650J-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
1650J-GW-042         N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
1650J-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
1650J-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
1650J-GW-042         N                   4/19/2006     TRICHLOROETHENE                                     ug/L
1650J-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
1650J-GW-042         N                   4/19/2006     VINYL CHLORIDE                                      ug/L
CDM10C-GW-042        FD                  4/19/2006     1,1-DICHLOROETHANE                   0.51           ug/L
CDM10C-GW-042        FD                  4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10C-GW-042        FD                  4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10C-GW-042        FD                  4/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10C-GW-042        FD                  4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM10C-GW-042        FD                  4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM10C-GW-042        FD                  4/19/2006     BENZENE                                             ug/L
CDM10C-GW-042        FD                  4/19/2006     CHLOROBENZENE                                       ug/L
CDM10C-GW-042        FD                  4/19/2006     CHLOROFORM                                          ug/L
CDM10C-GW-042        FD                  4/19/2006     CIS-1,2-DICHLOROETHENE               5.9            ug/L
CDM10C-GW-042        FD                  4/19/2006     TETRACHLOROETHENE                    25             ug/L
CDM10C-GW-042        FD                  4/19/2006     TOLUENE                                             ug/L
CDM10C-GW-042        FD                  4/19/2006     TRANS-1,2-DICHLOROETHENE             1.8            ug/L
CDM10C-GW-042        FD                  4/19/2006     TRICHLOROETHENE                      9.6            ug/L
CDM10C-GW-042        FD                  4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM10C-GW-042        FD                  4/19/2006     VINYL CHLORIDE                       3.1            ug/L
CDM18A-GW-042        N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM18A-GW-042        N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM18A-GW-042        N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM18A-GW-042        N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM18A-GW-042        N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM18A-GW-042        N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM18A-GW-042        N                   4/19/2006     BENZENE                                             ug/L
CDM18A-GW-042        N                   4/19/2006     CHLOROBENZENE                                       ug/L
CDM18A-GW-042        N                   4/19/2006     CHLOROFORM                                          ug/L
CDM18A-GW-042        N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18A-GW-042        N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
CDM18A-GW-042        N                   4/19/2006     TOLUENE                                             ug/L
CDM18A-GW-042        N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18A-GW-042        N                   4/19/2006     TRICHLOROETHENE                                     ug/L
CDM18A-GW-042        N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM18A-GW-042        N                   4/19/2006     VINYL CHLORIDE                                      ug/L
CDM18B-GW-042        N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM18B-GW-042        N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM18B-GW-042        N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM18B-GW-042        N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM18B-GW-042        N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM18B-GW-042        N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM18B-GW-042        N                   4/19/2006     BENZENE                                             ug/L
CDM18B-GW-042        N                   4/19/2006     CHLOROBENZENE                                       ug/L
CDM18B-GW-042        N                   4/19/2006     CHLOROFORM                                          ug/L
CDM18B-GW-042        N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18B-GW-042        N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
CDM18B-GW-042        N                   4/19/2006     TOLUENE                                             ug/L
CDM18B-GW-042        N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18B-GW-042        N                   4/19/2006     TRICHLOROETHENE                                     ug/L
CDM18B-GW-042        N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM18B-GW-042        N                   4/19/2006     VINYL CHLORIDE                                      ug/L
CDM18C-GW-042        N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM18C-GW-042        N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM18C-GW-042        N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM18C-GW-042        N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM18C-GW-042        N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM18C-GW-042        N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM18C-GW-042        N                   4/19/2006     BENZENE                                             ug/L
CDM18C-GW-042        N                   4/19/2006     CHLOROBENZENE                                       ug/L
CDM18C-GW-042        N                   4/19/2006     CHLOROFORM                                          ug/L
CDM18C-GW-042        N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18C-GW-042        N                   4/19/2006     TETRACHLOROETHENE                    0.69           ug/L
CDM18C-GW-042        N                   4/19/2006     TOLUENE                                             ug/L
CDM18C-GW-042        N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18C-GW-042        N                   4/19/2006     TRICHLOROETHENE                                     ug/L
CDM18C-GW-042        N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM18C-GW-042        N                   4/19/2006     VINYL CHLORIDE                                      ug/L
CDM5A-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM5A-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM5A-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM5A-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM5A-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM5A-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM5A-GW-042         N                   4/19/2006     BENZENE                                             ug/L
CDM5A-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
CDM5A-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
CDM5A-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L



                                                                                14 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM5A-GW-042         N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
CDM5A-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
CDM5A-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5A-GW-042         N                   4/19/2006     TRICHLOROETHENE                                     ug/L
CDM5A-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM5A-GW-042         N                   4/19/2006     VINYL CHLORIDE                                      ug/L
CDM5B-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                   2              ug/L
CDM5B-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM5B-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM5B-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM5B-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM5B-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM5B-GW-042         N                   4/19/2006     BENZENE                                             ug/L
CDM5B-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
CDM5B-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
CDM5B-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE               14             ug/L
CDM5B-GW-042         N                   4/19/2006     TETRACHLOROETHENE                    25             ug/L
CDM5B-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
CDM5B-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE             0.8            ug/L
CDM5B-GW-042         N                   4/19/2006     TRICHLOROETHENE                      8              ug/L
CDM5B-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM5B-GW-042         N                   4/19/2006     VINYL CHLORIDE                                      ug/L
CDM5C-GW-042         N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM5C-GW-042         N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM5C-GW-042         N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM5C-GW-042         N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM5C-GW-042         N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM5C-GW-042         N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM5C-GW-042         N                   4/19/2006     BENZENE                                             ug/L
CDM5C-GW-042         N                   4/19/2006     CHLOROBENZENE                                       ug/L
CDM5C-GW-042         N                   4/19/2006     CHLOROFORM                                          ug/L
CDM5C-GW-042         N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM5C-GW-042         N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
CDM5C-GW-042         N                   4/19/2006     TOLUENE                                             ug/L
CDM5C-GW-042         N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5C-GW-042         N                   4/19/2006     TRICHLOROETHENE                                     ug/L
CDM5C-GW-042         N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM5C-GW-042         N                   4/19/2006     VINYL CHLORIDE                                      ug/L
DW1B-GW-042          N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
DW1B-GW-042          N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
DW1B-GW-042          N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
DW1B-GW-042          N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
DW1B-GW-042          N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
DW1B-GW-042          N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
DW1B-GW-042          N                   4/19/2006     BENZENE                                             ug/L
DW1B-GW-042          N                   4/19/2006     CHLOROBENZENE                                       ug/L
DW1B-GW-042          N                   4/19/2006     CHLOROFORM                                          ug/L
DW1B-GW-042          N                   4/19/2006     CIS-1,2-DICHLOROETHENE               5.9            ug/L
DW1B-GW-042          N                   4/19/2006     TETRACHLOROETHENE                    26             ug/L
DW1B-GW-042          N                   4/19/2006     TOLUENE                                             ug/L
DW1B-GW-042          N                   4/19/2006     TRANS-1,2-DICHLOROETHENE             1.8            ug/L
DW1B-GW-042          N                   4/19/2006     TRICHLOROETHENE                      10             ug/L
DW1B-GW-042          N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
DW1B-GW-042          N                   4/19/2006     VINYL CHLORIDE                       2.9            ug/L
DW1C-GW-042          N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
DW1C-GW-042          N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
DW1C-GW-042          N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
DW1C-GW-042          N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
DW1C-GW-042          N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
DW1C-GW-042          N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
DW1C-GW-042          N                   4/19/2006     BENZENE                                             ug/L
DW1C-GW-042          N                   4/19/2006     CHLOROBENZENE                                       ug/L
DW1C-GW-042          N                   4/19/2006     CHLOROFORM                                          ug/L
DW1C-GW-042          N                   4/19/2006     CIS-1,2-DICHLOROETHENE               2.2            ug/L
DW1C-GW-042          N                   4/19/2006     TETRACHLOROETHENE                    13             ug/L
DW1C-GW-042          N                   4/19/2006     TOLUENE                                             ug/L
DW1C-GW-042          N                   4/19/2006     TRANS-1,2-DICHLOROETHENE             0.53           ug/L
DW1C-GW-042          N                   4/19/2006     TRICHLOROETHENE                      5.2            ug/L
DW1C-GW-042          N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
DW1C-GW-042          N                   4/19/2006     VINYL CHLORIDE                       1.2            ug/L
MW1-GW-042           N                   4/19/2006     1,1-DICHLOROETHANE                   0.64           ug/L
MW1-GW-042           N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
MW1-GW-042           N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
MW1-GW-042           N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
MW1-GW-042           N                   4/19/2006     1,2-DICHLOROPROPANE                  0.67           ug/L
MW1-GW-042           N                   4/19/2006     1,4-DICHLOROBENZENE                  1.3            ug/L
MW1-GW-042           N                   4/19/2006     BENZENE                                             ug/L
MW1-GW-042           N                   4/19/2006     CHLOROBENZENE                                       ug/L
MW1-GW-042           N                   4/19/2006     CHLOROFORM                                          ug/L
MW1-GW-042           N                   4/19/2006     CIS-1,2-DICHLOROETHENE               36             ug/L
MW1-GW-042           N                   4/19/2006     TETRACHLOROETHENE                    4.4            ug/L
MW1-GW-042           N                   4/19/2006     TOLUENE                                             ug/L
MW1-GW-042           N                   4/19/2006     TRANS-1,2-DICHLOROETHENE             0.81           ug/L



                                                                                15 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
MW1-GW-042           N                   4/19/2006     TRICHLOROETHENE                      2.2            ug/L
MW1-GW-042           N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
MW1-GW-042           N                   4/19/2006     VINYL CHLORIDE                       3.6            ug/L
MW2-GW-042           N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
MW2-GW-042           N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
MW2-GW-042           N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
MW2-GW-042           N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
MW2-GW-042           N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
MW2-GW-042           N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
MW2-GW-042           N                   4/19/2006     BENZENE                                             ug/L
MW2-GW-042           N                   4/19/2006     CHLOROBENZENE                                       ug/L
MW2-GW-042           N                   4/19/2006     CHLOROFORM                                          ug/L
MW2-GW-042           N                   4/19/2006     CIS-1,2-DICHLOROETHENE               2.8            ug/L
MW2-GW-042           N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
MW2-GW-042           N                   4/19/2006     TOLUENE                                             ug/L
MW2-GW-042           N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
MW2-GW-042           N                   4/19/2006     TRICHLOROETHENE                                     ug/L
MW2-GW-042           N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
MW2-GW-042           N                   4/19/2006     VINYL CHLORIDE                                      ug/L
PZ4C-GW-042          N                   4/19/2006     1,1-DICHLOROETHANE                                  ug/L
PZ4C-GW-042          N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ4C-GW-042          N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ4C-GW-042          N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
PZ4C-GW-042          N                   4/19/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ4C-GW-042          N                   4/19/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ4C-GW-042          N                   4/19/2006     BENZENE                                             ug/L
PZ4C-GW-042          N                   4/19/2006     CHLOROBENZENE                                       ug/L
PZ4C-GW-042          N                   4/19/2006     CHLOROFORM                                          ug/L
PZ4C-GW-042          N                   4/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
PZ4C-GW-042          N                   4/19/2006     TETRACHLOROETHENE                                   ug/L
PZ4C-GW-042          N                   4/19/2006     TOLUENE                                             ug/L
PZ4C-GW-042          N                   4/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ4C-GW-042          N                   4/19/2006     TRICHLOROETHENE                                     ug/L
PZ4C-GW-042          N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
PZ4C-GW-042          N                   4/19/2006     VINYL CHLORIDE                                      ug/L
W1R-GW-042           N                   4/19/2006     1,1-DICHLOROETHANE                   3.1            ug/L
W1R-GW-042           N                   4/19/2006     1,1-DICHLOROETHYLENE                                ug/L
W1R-GW-042           N                   4/19/2006     1,2-DICHLOROBENZENE                                 ug/L
W1R-GW-042           N                   4/19/2006     1,2-DICHLOROETHANE                                  ug/L
W1R-GW-042           N                   4/19/2006     1,2-DICHLOROPROPANE                  1              ug/L
W1R-GW-042           N                   4/19/2006     1,4-DICHLOROBENZENE                  1.9            ug/L
W1R-GW-042           N                   4/19/2006     BENZENE                                             ug/L
W1R-GW-042           N                   4/19/2006     CHLOROBENZENE                        1.3            ug/L
W1R-GW-042           N                   4/19/2006     CHLOROFORM                                          ug/L
W1R-GW-042           N                   4/19/2006     CIS-1,2-DICHLOROETHENE               79             ug/L
W1R-GW-042           N                   4/19/2006     TETRACHLOROETHENE                    3.6            ug/L
W1R-GW-042           N                   4/19/2006     TOLUENE                                             ug/L
W1R-GW-042           N                   4/19/2006     TRANS-1,2-DICHLOROETHENE             1.7            ug/L
W1R-GW-042           N                   4/19/2006     TRICHLOROETHENE                      10             ug/L
W1R-GW-042           N                   4/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
W1R-GW-042           N                   4/19/2006     VINYL CHLORIDE                       3.6            ug/L
1770N-GW-042         N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
1770N-GW-042         N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
1770N-GW-042         N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
1770N-GW-042         N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
1770N-GW-042         N                   4/20/2006     1,2-DICHLOROPROPANE                  0.72           ug/L
1770N-GW-042         N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
1770N-GW-042         N                   4/20/2006     BENZENE                                             ug/L
1770N-GW-042         N                   4/20/2006     CHLOROBENZENE                                       ug/L
1770N-GW-042         N                   4/20/2006     CHLOROFORM                                          ug/L
1770N-GW-042         N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
1770N-GW-042         N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
1770N-GW-042         N                   4/20/2006     TOLUENE                                             ug/L
1770N-GW-042         N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
1770N-GW-042         N                   4/20/2006     TRICHLOROETHENE                                     ug/L
1770N-GW-042         N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
1770N-GW-042         N                   4/20/2006     VINYL CHLORIDE                                      ug/L
CDM10D-GW-042        FD                  4/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM10D-GW-042        FD                  4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10D-GW-042        FD                  4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10D-GW-042        FD                  4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10D-GW-042        FD                  4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM10D-GW-042        FD                  4/20/2006     1,4-DICHLOROBENZENE                  1.8            ug/L
CDM10D-GW-042        FD                  4/20/2006     BENZENE                                             ug/L
CDM10D-GW-042        FD                  4/20/2006     CHLOROBENZENE                                       ug/L
CDM10D-GW-042        FD                  4/20/2006     CHLOROFORM                                          ug/L
CDM10D-GW-042        FD                  4/20/2006     CIS-1,2-DICHLOROETHENE               9.3            ug/L
CDM10D-GW-042        FD                  4/20/2006     TETRACHLOROETHENE                                   ug/L
CDM10D-GW-042        FD                  4/20/2006     TOLUENE                                             ug/L
CDM10D-GW-042        FD                  4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10D-GW-042        FD                  4/20/2006     TRICHLOROETHENE                      0.68           ug/L
CDM10D-GW-042        FD                  4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM10D-GW-042        FD                  4/20/2006     VINYL CHLORIDE                       0.76           ug/L



                                                                                16 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM12A-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                   4.8            ug/L
CDM12A-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM12A-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM12A-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM12A-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM12A-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM12A-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM12A-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM12A-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM12A-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE               180            ug/L
CDM12A-GW-042        N                   4/20/2006     TETRACHLOROETHENE                    14             ug/L
CDM12A-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM12A-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             11             ug/L
CDM12A-GW-042        N                   4/20/2006     TRICHLOROETHENE                      15             ug/L
CDM12A-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM12A-GW-042        N                   4/20/2006     VINYL CHLORIDE                       44             ug/L
CDM12B-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                   1.2            ug/L
CDM12B-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM12B-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM12B-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM12B-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM12B-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM12B-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM12B-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM12B-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM12B-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE               13             ug/L
CDM12B-GW-042        N                   4/20/2006     TETRACHLOROETHENE                    17             ug/L
CDM12B-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM12B-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             1              ug/L
CDM12B-GW-042        N                   4/20/2006     TRICHLOROETHENE                      6.8            ug/L
CDM12B-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE               0.64           ug/L
CDM12B-GW-042        N                   4/20/2006     VINYL CHLORIDE                       4              ug/L
CDM13A-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                   1.8            ug/L
CDM13A-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM13A-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM13A-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM13A-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                  2.8            ug/L
CDM13A-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                  7.1            ug/L
CDM13A-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM13A-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM13A-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM13A-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE               180            ug/L
CDM13A-GW-042        N                   4/20/2006     TETRACHLOROETHENE                    8.2            ug/L
CDM13A-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM13A-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             6.4            ug/L
CDM13A-GW-042        N                   4/20/2006     TRICHLOROETHENE                      20             ug/L
CDM13A-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM13A-GW-042        N                   4/20/2006     VINYL CHLORIDE                       5.2            ug/L
CDM13B2-GW-042       N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM13B2-GW-042       N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM13B2-GW-042       N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-042       N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM13B2-GW-042       N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM13B2-GW-042       N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-042       N                   4/20/2006     BENZENE                                             ug/L
CDM13B2-GW-042       N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM13B2-GW-042       N                   4/20/2006     CHLOROFORM                                          ug/L
CDM13B2-GW-042       N                   4/20/2006     CIS-1,2-DICHLOROETHENE               0.65           ug/L
CDM13B2-GW-042       N                   4/20/2006     TETRACHLOROETHENE                    3.2            ug/L
CDM13B2-GW-042       N                   4/20/2006     TOLUENE                                             ug/L
CDM13B2-GW-042       N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13B2-GW-042       N                   4/20/2006     TRICHLOROETHENE                      1.8            ug/L
CDM13B2-GW-042       N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM13B2-GW-042       N                   4/20/2006     VINYL CHLORIDE                       1.2            ug/L
CDM13B-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM13B-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM13B-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM13B-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM13B-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM13B-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM13B-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM13B-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM13B-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM13B-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE               2.5            ug/L
CDM13B-GW-042        N                   4/20/2006     TETRACHLOROETHENE                    6.9            ug/L
CDM13B-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM13B-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             0.78           ug/L
CDM13B-GW-042        N                   4/20/2006     TRICHLOROETHENE                      3.4            ug/L
CDM13B-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE               1.2            ug/L
CDM13B-GW-042        N                   4/20/2006     VINYL CHLORIDE                       6.1            ug/L
CDM13C-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM13C-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM13C-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L



                                                                                17 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM13C-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM13C-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM13C-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM13C-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM13C-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM13C-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM13C-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM13C-GW-042        N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
CDM13C-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM13C-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13C-GW-042        N                   4/20/2006     TRICHLOROETHENE                                     ug/L
CDM13C-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM13C-GW-042        N                   4/20/2006     VINYL CHLORIDE                                      ug/L
CDM16A-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM16A-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM16A-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM16A-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM16A-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM16A-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM16A-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM16A-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM16A-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM16A-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16A-GW-042        N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
CDM16A-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM16A-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16A-GW-042        N                   4/20/2006     TRICHLOROETHENE                                     ug/L
CDM16A-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM16A-GW-042        N                   4/20/2006     VINYL CHLORIDE                                      ug/L
CDM16B-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM16B-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM16B-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM16B-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM16B-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM16B-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM16B-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM16B-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM16B-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM16B-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16B-GW-042        N                   4/20/2006     TETRACHLOROETHENE                    2.2            ug/L
CDM16B-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM16B-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16B-GW-042        N                   4/20/2006     TRICHLOROETHENE                                     ug/L
CDM16B-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE               3.8            ug/L
CDM16B-GW-042        N                   4/20/2006     VINYL CHLORIDE                                      ug/L
CDM16C-GW-042        N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM16C-GW-042        N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM16C-GW-042        N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM16C-GW-042        N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM16C-GW-042        N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM16C-GW-042        N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM16C-GW-042        N                   4/20/2006     BENZENE                                             ug/L
CDM16C-GW-042        N                   4/20/2006     CHLOROBENZENE                                       ug/L
CDM16C-GW-042        N                   4/20/2006     CHLOROFORM                                          ug/L
CDM16C-GW-042        N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16C-GW-042        N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
CDM16C-GW-042        N                   4/20/2006     TOLUENE                                             ug/L
CDM16C-GW-042        N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16C-GW-042        N                   4/20/2006     TRICHLOROETHENE                                     ug/L
CDM16C-GW-042        N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM16C-GW-042        N                   4/20/2006     VINYL CHLORIDE                                      ug/L
PW1A-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                   0.95           ug/L
PW1A-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PW1A-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PW1A-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
PW1A-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                  0.55           ug/L
PW1A-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                  0.96           ug/L
PW1A-GW-042          N                   4/20/2006     BENZENE                                             ug/L
PW1A-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
PW1A-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L
PW1A-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE               23             ug/L
PW1A-GW-042          N                   4/20/2006     TETRACHLOROETHENE                    8.6            ug/L
PW1A-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
PW1A-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             0.54           ug/L
PW1A-GW-042          N                   4/20/2006     TRICHLOROETHENE                      3.3            ug/L
PW1A-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PW1A-GW-042          N                   4/20/2006     VINYL CHLORIDE                       0.88           ug/L
PW2A-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
PW2A-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PW2A-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PW2A-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
PW2A-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
PW2A-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                  1.6            ug/L



                                                                                18 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
PW2A-GW-042          N                   4/20/2006     BENZENE                                             ug/L
PW2A-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
PW2A-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L
PW2A-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE               9.3            ug/L
PW2A-GW-042          N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
PW2A-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
PW2A-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PW2A-GW-042          N                   4/20/2006     TRICHLOROETHENE                      0.67           ug/L
PW2A-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PW2A-GW-042          N                   4/20/2006     VINYL CHLORIDE                       0.72           ug/L
PW3A-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                   2.3            ug/L
PW3A-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PW3A-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PW3A-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
PW3A-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                  0.6            ug/L
PW3A-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                  2              ug/L
PW3A-GW-042          N                   4/20/2006     BENZENE                                             ug/L
PW3A-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
PW3A-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L
PW3A-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE               34             ug/L
PW3A-GW-042          N                   4/20/2006     TETRACHLOROETHENE                    26             ug/L
PW3A-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
PW3A-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             1.6            ug/L
PW3A-GW-042          N                   4/20/2006     TRICHLOROETHENE                      12             ug/L
PW3A-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE               2.6            ug/L
PW3A-GW-042          N                   4/20/2006     VINYL CHLORIDE                       5.6            ug/L
PW4A-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                   3.5            ug/L
PW4A-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PW4A-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PW4A-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
PW4A-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                  1.2            ug/L
PW4A-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                  1.7            ug/L
PW4A-GW-042          N                   4/20/2006     BENZENE                                             ug/L
PW4A-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
PW4A-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L
PW4A-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE               97             ug/L
PW4A-GW-042          N                   4/20/2006     TETRACHLOROETHENE                    34             ug/L
PW4A-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
PW4A-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             5.6            ug/L
PW4A-GW-042          N                   4/20/2006     TRICHLOROETHENE                      29             ug/L
PW4A-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PW4A-GW-042          N                   4/20/2006     VINYL CHLORIDE                       10             ug/L
PW5A-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                   0.68           ug/L
PW5A-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PW5A-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PW5A-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
PW5A-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                  0.92           ug/L
PW5A-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                  2              ug/L
PW5A-GW-042          N                   4/20/2006     BENZENE                                             ug/L
PW5A-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
PW5A-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L
PW5A-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE               31             ug/L
PW5A-GW-042          N                   4/20/2006     TETRACHLOROETHENE                    15             ug/L
PW5A-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
PW5A-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE             2.5            ug/L
PW5A-GW-042          N                   4/20/2006     TRICHLOROETHENE                      11             ug/L
PW5A-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PW5A-GW-042          N                   4/20/2006     VINYL CHLORIDE                       1.3            ug/L
UW1A-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
UW1A-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
UW1A-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
UW1A-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
UW1A-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
UW1A-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
UW1A-GW-042          N                   4/20/2006     BENZENE                                             ug/L
UW1A-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
UW1A-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L
UW1A-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
UW1A-GW-042          N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
UW1A-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
UW1A-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
UW1A-GW-042          N                   4/20/2006     TRICHLOROETHENE                                     ug/L
UW1A-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
UW1A-GW-042          N                   4/20/2006     VINYL CHLORIDE                                      ug/L
UW1B-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
UW1B-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
UW1B-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
UW1B-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
UW1B-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
UW1B-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
UW1B-GW-042          N                   4/20/2006     BENZENE                                             ug/L
UW1B-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
UW1B-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L



                                                                                19 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
UW1B-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
UW1B-GW-042          N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
UW1B-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
UW1B-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
UW1B-GW-042          N                   4/20/2006     TRICHLOROETHENE                                     ug/L
UW1B-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
UW1B-GW-042          N                   4/20/2006     VINYL CHLORIDE                                      ug/L
UW1C-GW-042          N                   4/20/2006     1,1-DICHLOROETHANE                                  ug/L
UW1C-GW-042          N                   4/20/2006     1,1-DICHLOROETHYLENE                                ug/L
UW1C-GW-042          N                   4/20/2006     1,2-DICHLOROBENZENE                                 ug/L
UW1C-GW-042          N                   4/20/2006     1,2-DICHLOROETHANE                                  ug/L
UW1C-GW-042          N                   4/20/2006     1,2-DICHLOROPROPANE                                 ug/L
UW1C-GW-042          N                   4/20/2006     1,4-DICHLOROBENZENE                                 ug/L
UW1C-GW-042          N                   4/20/2006     BENZENE                                             ug/L
UW1C-GW-042          N                   4/20/2006     CHLOROBENZENE                                       ug/L
UW1C-GW-042          N                   4/20/2006     CHLOROFORM                                          ug/L
UW1C-GW-042          N                   4/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
UW1C-GW-042          N                   4/20/2006     TETRACHLOROETHENE                                   ug/L
UW1C-GW-042          N                   4/20/2006     TOLUENE                                             ug/L
UW1C-GW-042          N                   4/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
UW1C-GW-042          N                   4/20/2006     TRICHLOROETHENE                                     ug/L
UW1C-GW-042          N                   4/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
UW1C-GW-042          N                   4/20/2006     VINYL CHLORIDE                                      ug/L
1912J-GW-042         N                   4/21/2006     1,1-DICHLOROETHANE                                  ug/L
1912J-GW-042         N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
1912J-GW-042         N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
1912J-GW-042         N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
1912J-GW-042         N                   4/21/2006     1,2-DICHLOROPROPANE                                 ug/L
1912J-GW-042         N                   4/21/2006     1,4-DICHLOROBENZENE                                 ug/L
1912J-GW-042         N                   4/21/2006     BENZENE                                             ug/L
1912J-GW-042         N                   4/21/2006     CHLOROBENZENE                                       ug/L
1912J-GW-042         N                   4/21/2006     CHLOROFORM                                          ug/L
1912J-GW-042         N                   4/21/2006     CIS-1,2-DICHLOROETHENE                              ug/L
1912J-GW-042         N                   4/21/2006     TETRACHLOROETHENE                                   ug/L
1912J-GW-042         N                   4/21/2006     TOLUENE                                             ug/L
1912J-GW-042         N                   4/21/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
1912J-GW-042         N                   4/21/2006     TRICHLOROETHENE                                     ug/L
1912J-GW-042         N                   4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L
1912J-GW-042         N                   4/21/2006     VINYL CHLORIDE                                      ug/L
2045N-GW-042         N                   4/21/2006     1,1-DICHLOROETHANE                                  ug/L
2045N-GW-042         N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
2045N-GW-042         N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
2045N-GW-042         N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
2045N-GW-042         N                   4/21/2006     1,2-DICHLOROPROPANE                                 ug/L
2045N-GW-042         N                   4/21/2006     1,4-DICHLOROBENZENE                                 ug/L
2045N-GW-042         N                   4/21/2006     BENZENE                                             ug/L
2045N-GW-042         N                   4/21/2006     CHLOROBENZENE                                       ug/L
2045N-GW-042         N                   4/21/2006     CHLOROFORM                                          ug/L
2045N-GW-042         N                   4/21/2006     CIS-1,2-DICHLOROETHENE                              ug/L
2045N-GW-042         N                   4/21/2006     TETRACHLOROETHENE                                   ug/L
2045N-GW-042         N                   4/21/2006     TOLUENE                                             ug/L
2045N-GW-042         N                   4/21/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
2045N-GW-042         N                   4/21/2006     TRICHLOROETHENE                                     ug/L
2045N-GW-042         N                   4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L
2045N-GW-042         N                   4/21/2006     VINYL CHLORIDE                                      ug/L
2429N-GW-042         N                   4/21/2006     1,1-DICHLOROETHANE                                  ug/L
2429N-GW-042         N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
2429N-GW-042         N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
2429N-GW-042         N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
2429N-GW-042         N                   4/21/2006     1,2-DICHLOROPROPANE                                 ug/L
2429N-GW-042         N                   4/21/2006     1,4-DICHLOROBENZENE                                 ug/L
2429N-GW-042         N                   4/21/2006     BENZENE                                             ug/L
2429N-GW-042         N                   4/21/2006     CHLOROBENZENE                                       ug/L
2429N-GW-042         N                   4/21/2006     CHLOROFORM                                          ug/L
2429N-GW-042         N                   4/21/2006     CIS-1,2-DICHLOROETHENE                              ug/L
2429N-GW-042         N                   4/21/2006     TETRACHLOROETHENE                    2.3            ug/L
2429N-GW-042         N                   4/21/2006     TOLUENE                                             ug/L
2429N-GW-042         N                   4/21/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
2429N-GW-042         N                   4/21/2006     TRICHLOROETHENE                                     ug/L
2429N-GW-042         N                   4/21/2006     TRICHLOROFLUOROMETHANE               2.5            ug/L
2429N-GW-042         N                   4/21/2006     VINYL CHLORIDE                                      ug/L
CDM10E-GW-042        FD                  4/21/2006     1,1-DICHLOROETHANE                                  ug/L
CDM10E-GW-042        FD                  4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10E-GW-042        FD                  4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10E-GW-042        FD                  4/21/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10E-GW-042        FD                  4/21/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM10E-GW-042        FD                  4/21/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM10E-GW-042        FD                  4/21/2006     BENZENE                                             ug/L
CDM10E-GW-042        FD                  4/21/2006     CHLOROBENZENE                                       ug/L
CDM10E-GW-042        FD                  4/21/2006     CHLOROFORM                                          ug/L
CDM10E-GW-042        FD                  4/21/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10E-GW-042        FD                  4/21/2006     TETRACHLOROETHENE                                   ug/L
CDM10E-GW-042        FD                  4/21/2006     TOLUENE                                             ug/L



                                                                                20 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM10E-GW-042        FD                  4/21/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10E-GW-042        FD                  4/21/2006     TRICHLOROETHENE                                     ug/L
CDM10E-GW-042        FD                  4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM10E-GW-042        FD                  4/21/2006     VINYL CHLORIDE                                      ug/L
EFF-GW-042           N                   4/21/2006     1,1-DICHLOROETHANE                                  ug/L
EFF-GW-042           N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
EFF-GW-042           N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
EFF-GW-042           N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
EFF-GW-042           N                   4/21/2006     1,2-DICHLOROPROPANE                                 ug/L
EFF-GW-042           N                   4/21/2006     1,4-DICHLOROBENZENE                                 ug/L
EFF-GW-042           N                   4/21/2006     BENZENE                                             ug/L
EFF-GW-042           N                   4/21/2006     CHLOROBENZENE                                       ug/L
EFF-GW-042           N                   4/21/2006     CHLOROFORM                                          ug/L
EFF-GW-042           N                   4/21/2006     CIS-1,2-DICHLOROETHENE                              ug/L
EFF-GW-042           N                   4/21/2006     TETRACHLOROETHENE                                   ug/L
EFF-GW-042           N                   4/21/2006     TOLUENE                                             ug/L
EFF-GW-042           N                   4/21/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
EFF-GW-042           N                   4/21/2006     TRICHLOROETHENE                                     ug/L
EFF-GW-042           N                   4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L
EFF-GW-042           N                   4/21/2006     VINYL CHLORIDE                                      ug/L
INF-GW-042           N                   4/21/2006     1,1-DICHLOROETHANE                   1.5            ug/L
INF-GW-042           N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
INF-GW-042           N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
INF-GW-042           N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
INF-GW-042           N                   4/21/2006     1,2-DICHLOROPROPANE                  0.65           ug/L
INF-GW-042           N                   4/21/2006     1,4-DICHLOROBENZENE                  1.3            ug/L
INF-GW-042           N                   4/21/2006     BENZENE                                             ug/L
INF-GW-042           N                   4/21/2006     CHLOROBENZENE                                       ug/L
INF-GW-042           N                   4/21/2006     CHLOROFORM                                          ug/L
INF-GW-042           N                   4/21/2006     CIS-1,2-DICHLOROETHENE               31             ug/L
INF-GW-042           N                   4/21/2006     TETRACHLOROETHENE                    14             ug/L
INF-GW-042           N                   4/21/2006     TOLUENE                                             ug/L
INF-GW-042           N                   4/21/2006     TRANS-1,2-DICHLOROETHENE             1.3            ug/L
INF-GW-042           N                   4/21/2006     TRICHLOROETHENE                      8.4            ug/L
INF-GW-042           N                   4/21/2006     TRICHLOROFLUOROMETHANE               0.89           ug/L
INF-GW-042           N                   4/21/2006     VINYL CHLORIDE                       2.8            ug/L
MW4-GW-042           N                   4/21/2006     1,1-DICHLOROETHANE                                  ug/L
MW4-GW-042           N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
MW4-GW-042           N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
MW4-GW-042           N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
MW4-GW-042           N                   4/21/2006     1,2-DICHLOROPROPANE                  0.78           ug/L
MW4-GW-042           N                   4/21/2006     1,4-DICHLOROBENZENE                                 ug/L
MW4-GW-042           N                   4/21/2006     BENZENE                                             ug/L
MW4-GW-042           N                   4/21/2006     CHLOROBENZENE                                       ug/L
MW4-GW-042           N                   4/21/2006     CHLOROFORM                                          ug/L
MW4-GW-042           N                   4/21/2006     CIS-1,2-DICHLOROETHENE               24             ug/L
MW4-GW-042           N                   4/21/2006     TETRACHLOROETHENE                    0.59           ug/L
MW4-GW-042           N                   4/21/2006     TOLUENE                                             ug/L
MW4-GW-042           N                   4/21/2006     TRANS-1,2-DICHLOROETHENE             0.59           ug/L
MW4-GW-042           N                   4/21/2006     TRICHLOROETHENE                      1.3            ug/L
MW4-GW-042           N                   4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L
MW4-GW-042           N                   4/21/2006     VINYL CHLORIDE                       9.8            ug/L
W4-GW-042            N                   4/21/2006     1,1-DICHLOROETHANE                   0.54           ug/L
W4-GW-042            N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
W4-GW-042            N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
W4-GW-042            N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
W4-GW-042            N                   4/21/2006     1,2-DICHLOROPROPANE                  0.87           ug/L
W4-GW-042            N                   4/21/2006     1,4-DICHLOROBENZENE                  1.9            ug/L
W4-GW-042            N                   4/21/2006     BENZENE                                             ug/L
W4-GW-042            N                   4/21/2006     CHLOROBENZENE                                       ug/L
W4-GW-042            N                   4/21/2006     CHLOROFORM                                          ug/L
W4-GW-042            N                   4/21/2006     CIS-1,2-DICHLOROETHENE               17             ug/L
W4-GW-042            N                   4/21/2006     TETRACHLOROETHENE                                   ug/L
W4-GW-042            N                   4/21/2006     TOLUENE                                             ug/L
W4-GW-042            N                   4/21/2006     TRANS-1,2-DICHLOROETHENE             1.2            ug/L
W4-GW-042            N                   4/21/2006     TRICHLOROETHENE                                     ug/L
W4-GW-042            N                   4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L
W4-GW-042            N                   4/21/2006     VINYL CHLORIDE                       5.6            ug/L
W5-GW-042            N                   4/21/2006     1,1-DICHLOROETHANE                                  ug/L
W5-GW-042            N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
W5-GW-042            N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
W5-GW-042            N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
W5-GW-042            N                   4/21/2006     1,2-DICHLOROPROPANE                                 ug/L
W5-GW-042            N                   4/21/2006     1,4-DICHLOROBENZENE                  1.7            ug/L
W5-GW-042            N                   4/21/2006     BENZENE                                             ug/L
W5-GW-042            N                   4/21/2006     CHLOROBENZENE                                       ug/L
W5-GW-042            N                   4/21/2006     CHLOROFORM                                          ug/L
W5-GW-042            N                   4/21/2006     CIS-1,2-DICHLOROETHENE               4.8            ug/L
W5-GW-042            N                   4/21/2006     TETRACHLOROETHENE                                   ug/L
W5-GW-042            N                   4/21/2006     TOLUENE                                             ug/L
W5-GW-042            N                   4/21/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
W5-GW-042            N                   4/21/2006     TRICHLOROETHENE                                     ug/L
W5-GW-042            N                   4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L



                                                                                21 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
W5-GW-042            N                   4/21/2006     VINYL CHLORIDE                                      ug/L
W6-GW-042            N                   4/21/2006     1,1-DICHLOROETHANE                                  ug/L
W6-GW-042            N                   4/21/2006     1,1-DICHLOROETHYLENE                                ug/L
W6-GW-042            N                   4/21/2006     1,2-DICHLOROBENZENE                                 ug/L
W6-GW-042            N                   4/21/2006     1,2-DICHLOROETHANE                                  ug/L
W6-GW-042            N                   4/21/2006     1,2-DICHLOROPROPANE                                 ug/L
W6-GW-042            N                   4/21/2006     1,4-DICHLOROBENZENE                                 ug/L
W6-GW-042            N                   4/21/2006     BENZENE                                             ug/L
W6-GW-042            N                   4/21/2006     CHLOROBENZENE                                       ug/L
W6-GW-042            N                   4/21/2006     CHLOROFORM                                          ug/L
W6-GW-042            N                   4/21/2006     CIS-1,2-DICHLOROETHENE                              ug/L
W6-GW-042            N                   4/21/2006     TETRACHLOROETHENE                                   ug/L
W6-GW-042            N                   4/21/2006     TOLUENE                                             ug/L
W6-GW-042            N                   4/21/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
W6-GW-042            N                   4/21/2006     TRICHLOROETHENE                                     ug/L
W6-GW-042            N                   4/21/2006     TRICHLOROFLUOROMETHANE                              ug/L
W6-GW-042            N                   4/21/2006     VINYL CHLORIDE                                      ug/L
CDM10A-GW-043        FD                  7/17/2006     1,1-DICHLOROETHANE                                  ug/L
CDM10A-GW-043        FD                  7/17/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10A-GW-043        FD                  7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10A-GW-043        FD                  7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10A-GW-043        FD                  7/17/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM10A-GW-043        FD                  7/17/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM10A-GW-043        FD                  7/17/2006     BENZENE                                             ug/L
CDM10A-GW-043        FD                  7/17/2006     CHLOROBENZENE                                       ug/L
CDM10A-GW-043        FD                  7/17/2006     CHLOROFORM                                          ug/L
CDM10A-GW-043        FD                  7/17/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10A-GW-043        FD                  7/17/2006     TETRACHLOROETHENE                    5.7            ug/L
CDM10A-GW-043        FD                  7/17/2006     TOLUENE                                             ug/L
CDM10A-GW-043        FD                  7/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10A-GW-043        FD                  7/17/2006     TRICHLOROETHENE                      0.71           ug/L
CDM10A-GW-043        FD                  7/17/2006     TRICHLOROFLUOROMETHANE               1.2            ug/L
CDM10A-GW-043        FD                  7/17/2006     VINYL CHLORIDE                                      ug/L
CDM12A-GW-043        N                   7/17/2006     1,1-DICHLOROETHANE                   6.3            ug/L
CDM12A-GW-043        N                   7/17/2006     1,1-DICHLOROETHYLENE                 0.5            ug/L
CDM12A-GW-043        N                   7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM12A-GW-043        N                   7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM12A-GW-043        N                   7/17/2006     1,2-DICHLOROPROPANE                  2.1            ug/L
CDM12A-GW-043        N                   7/17/2006     1,4-DICHLOROBENZENE                  1.2            ug/L
CDM12A-GW-043        N                   7/17/2006     BENZENE                              0.97           ug/L
CDM12A-GW-043        N                   7/17/2006     CHLOROBENZENE                                       ug/L
CDM12A-GW-043        N                   7/17/2006     CHLOROFORM                                          ug/L
CDM12A-GW-043        N                   7/17/2006     CIS-1,2-DICHLOROETHENE               270            ug/L
CDM12A-GW-043        N                   7/17/2006     TETRACHLOROETHENE                    16             ug/L
CDM12A-GW-043        N                   7/17/2006     TOLUENE                                             ug/L
CDM12A-GW-043        N                   7/17/2006     TRANS-1,2-DICHLOROETHENE             14             ug/L
CDM12A-GW-043        N                   7/17/2006     TRICHLOROETHENE                      18             ug/L
CDM12A-GW-043        N                   7/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM12A-GW-043        N                   7/17/2006     VINYL CHLORIDE                       55             ug/L
CDM12B-GW-043        N                   7/17/2006     1,1-DICHLOROETHANE                   0.95           ug/L
CDM12B-GW-043        N                   7/17/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM12B-GW-043        N                   7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM12B-GW-043        N                   7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM12B-GW-043        N                   7/17/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM12B-GW-043        N                   7/17/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM12B-GW-043        N                   7/17/2006     BENZENE                                             ug/L
CDM12B-GW-043        N                   7/17/2006     CHLOROBENZENE                                       ug/L
CDM12B-GW-043        N                   7/17/2006     CHLOROFORM                                          ug/L
CDM12B-GW-043        N                   7/17/2006     CIS-1,2-DICHLOROETHENE               10             ug/L
CDM12B-GW-043        N                   7/17/2006     TETRACHLOROETHENE                    16             ug/L
CDM12B-GW-043        N                   7/17/2006     TOLUENE                                             ug/L
CDM12B-GW-043        N                   7/17/2006     TRANS-1,2-DICHLOROETHENE             0.9            ug/L
CDM12B-GW-043        N                   7/17/2006     TRICHLOROETHENE                      6.4            ug/L
CDM12B-GW-043        N                   7/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM12B-GW-043        N                   7/17/2006     VINYL CHLORIDE                       3.3            ug/L
CDM13A-GW-043        N                   7/17/2006     1,1-DICHLOROETHANE                   1.5            ug/L
CDM13A-GW-043        N                   7/17/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM13A-GW-043        N                   7/17/2006     1,2-DICHLOROBENZENE                  0.62           ug/L
CDM13A-GW-043        N                   7/17/2006     1,2-DICHLOROETHANE                   0.69           ug/L
CDM13A-GW-043        N                   7/17/2006     1,2-DICHLOROPROPANE                  2.4            ug/L
CDM13A-GW-043        N                   7/17/2006     1,4-DICHLOROBENZENE                  6.8            ug/L
CDM13A-GW-043        N                   7/17/2006     BENZENE                                             ug/L
CDM13A-GW-043        N                   7/17/2006     CHLOROBENZENE                        0.65           ug/L
CDM13A-GW-043        N                   7/17/2006     CHLOROFORM                                          ug/L
CDM13A-GW-043        N                   7/17/2006     CIS-1,2-DICHLOROETHENE               180            ug/L
CDM13A-GW-043        N                   7/17/2006     TETRACHLOROETHENE                    9.2            ug/L
CDM13A-GW-043        N                   7/17/2006     TOLUENE                                             ug/L
CDM13A-GW-043        N                   7/17/2006     TRANS-1,2-DICHLOROETHENE             6              ug/L
CDM13A-GW-043        N                   7/17/2006     TRICHLOROETHENE                      17             ug/L
CDM13A-GW-043        N                   7/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM13A-GW-043        N                   7/17/2006     VINYL CHLORIDE                       5.9            ug/L
CDM13B2-GW-043       N                   7/17/2006     1,1-DICHLOROETHANE                                  ug/L
CDM13B2-GW-043       N                   7/17/2006     1,1-DICHLOROETHYLENE                                ug/L



                                                                                22 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM13B2-GW-043       N                   7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-043       N                   7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM13B2-GW-043       N                   7/17/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM13B2-GW-043       N                   7/17/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-043       N                   7/17/2006     BENZENE                                             ug/L
CDM13B2-GW-043       N                   7/17/2006     CHLOROBENZENE                                       ug/L
CDM13B2-GW-043       N                   7/17/2006     CHLOROFORM                                          ug/L
CDM13B2-GW-043       N                   7/17/2006     CIS-1,2-DICHLOROETHENE               0.58           ug/L
CDM13B2-GW-043       N                   7/17/2006     TETRACHLOROETHENE                    2.5            ug/L
CDM13B2-GW-043       N                   7/17/2006     TOLUENE                                             ug/L
CDM13B2-GW-043       N                   7/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13B2-GW-043       N                   7/17/2006     TRICHLOROETHENE                      1.6            ug/L
CDM13B2-GW-043       N                   7/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM13B2-GW-043       N                   7/17/2006     VINYL CHLORIDE                       1.2            ug/L
CDM13B-GW-043        N                   7/17/2006     1,1-DICHLOROETHANE                                  ug/L
CDM13B-GW-043        N                   7/17/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM13B-GW-043        N                   7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM13B-GW-043        N                   7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM13B-GW-043        N                   7/17/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM13B-GW-043        N                   7/17/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM13B-GW-043        N                   7/17/2006     BENZENE                                             ug/L
CDM13B-GW-043        N                   7/17/2006     CHLOROBENZENE                                       ug/L
CDM13B-GW-043        N                   7/17/2006     CHLOROFORM                                          ug/L
CDM13B-GW-043        N                   7/17/2006     CIS-1,2-DICHLOROETHENE               2.8            ug/L
CDM13B-GW-043        N                   7/17/2006     TETRACHLOROETHENE                    5.9            ug/L
CDM13B-GW-043        N                   7/17/2006     TOLUENE                                             ug/L
CDM13B-GW-043        N                   7/17/2006     TRANS-1,2-DICHLOROETHENE             0.76           ug/L
CDM13B-GW-043        N                   7/17/2006     TRICHLOROETHENE                      3.5            ug/L
CDM13B-GW-043        N                   7/17/2006     TRICHLOROFLUOROMETHANE               1.2            ug/L
CDM13B-GW-043        N                   7/17/2006     VINYL CHLORIDE                       5.9            ug/L
CDM15A-GW-043        N                   7/17/2006     1,1-DICHLOROETHANE                                  ug/L
CDM15A-GW-043        N                   7/17/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM15A-GW-043        N                   7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM15A-GW-043        N                   7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM15A-GW-043        N                   7/17/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM15A-GW-043        N                   7/17/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM15A-GW-043        N                   7/17/2006     BENZENE                                             ug/L
CDM15A-GW-043        N                   7/17/2006     CHLOROBENZENE                                       ug/L
CDM15A-GW-043        N                   7/17/2006     CHLOROFORM                                          ug/L
CDM15A-GW-043        N                   7/17/2006     CIS-1,2-DICHLOROETHENE               37             ug/L
CDM15A-GW-043        N                   7/17/2006     TETRACHLOROETHENE                    5.6            ug/L
CDM15A-GW-043        N                   7/17/2006     TOLUENE                                             ug/L
CDM15A-GW-043        N                   7/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15A-GW-043        N                   7/17/2006     TRICHLOROETHENE                      1.9            ug/L
CDM15A-GW-043        N                   7/17/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM15A-GW-043        N                   7/17/2006     VINYL CHLORIDE                                      ug/L
CDM15B2-GW-043       N                   7/17/2006     1,1-DICHLOROETHANE                                  ug/L
CDM15B2-GW-043       N                   7/17/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM15B2-GW-043       N                   7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-043       N                   7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM15B2-GW-043       N                   7/17/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM15B2-GW-043       N                   7/17/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-043       N                   7/17/2006     BENZENE                                             ug/L
CDM15B2-GW-043       N                   7/17/2006     CHLOROBENZENE                                       ug/L
CDM15B2-GW-043       N                   7/17/2006     CHLOROFORM                                          ug/L
CDM15B2-GW-043       N                   7/17/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM15B2-GW-043       N                   7/17/2006     TETRACHLOROETHENE                    5.3            ug/L
CDM15B2-GW-043       N                   7/17/2006     TOLUENE                                             ug/L
CDM15B2-GW-043       N                   7/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B2-GW-043       N                   7/17/2006     TRICHLOROETHENE                      0.73           ug/L
CDM15B2-GW-043       N                   7/17/2006     TRICHLOROFLUOROMETHANE               1.1            ug/L
CDM15B2-GW-043       N                   7/17/2006     VINYL CHLORIDE                                      ug/L
CDM15B-GW-043        N                   7/17/2006     1,1-DICHLOROETHANE                   1              ug/L
CDM15B-GW-043        N                   7/17/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM15B-GW-043        N                   7/17/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM15B-GW-043        N                   7/17/2006     1,2-DICHLOROETHANE                                  ug/L
CDM15B-GW-043        N                   7/17/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM15B-GW-043        N                   7/17/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM15B-GW-043        N                   7/17/2006     BENZENE                                             ug/L
CDM15B-GW-043        N                   7/17/2006     CHLOROBENZENE                                       ug/L
CDM15B-GW-043        N                   7/17/2006     CHLOROFORM                                          ug/L
CDM15B-GW-043        N                   7/17/2006     CIS-1,2-DICHLOROETHENE               2.6            ug/L
CDM15B-GW-043        N                   7/17/2006     TETRACHLOROETHENE                    45             ug/L
CDM15B-GW-043        N                   7/17/2006     TOLUENE                                             ug/L
CDM15B-GW-043        N                   7/17/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B-GW-043        N                   7/17/2006     TRICHLOROETHENE                      5.7            ug/L
CDM15B-GW-043        N                   7/17/2006     TRICHLOROFLUOROMETHANE               8              ug/L
CDM15B-GW-043        N                   7/17/2006     VINYL CHLORIDE                                      ug/L
CDM10B-GW-043        FD                  7/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM10B-GW-043        FD                  7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10B-GW-043        FD                  7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10B-GW-043        FD                  7/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10B-GW-043        FD                  7/18/2006     1,2-DICHLOROPROPANE                                 ug/L



                                                                                23 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM10B-GW-043        FD                  7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM10B-GW-043        FD                  7/18/2006     BENZENE                                             ug/L
CDM10B-GW-043        FD                  7/18/2006     CHLOROBENZENE                                       ug/L
CDM10B-GW-043        FD                  7/18/2006     CHLOROFORM                                          ug/L
CDM10B-GW-043        FD                  7/18/2006     CIS-1,2-DICHLOROETHENE               1.9            ug/L
CDM10B-GW-043        FD                  7/18/2006     TETRACHLOROETHENE                    3.2            ug/L
CDM10B-GW-043        FD                  7/18/2006     TOLUENE                                             ug/L
CDM10B-GW-043        FD                  7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10B-GW-043        FD                  7/18/2006     TRICHLOROETHENE                      1.1            ug/L
CDM10B-GW-043        FD                  7/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM10B-GW-043        FD                  7/18/2006     VINYL CHLORIDE                                      ug/L
CDM4A-GW-043         N                   7/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM4A-GW-043         N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM4A-GW-043         N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM4A-GW-043         N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM4A-GW-043         N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM4A-GW-043         N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM4A-GW-043         N                   7/18/2006     BENZENE                                             ug/L
CDM4A-GW-043         N                   7/18/2006     CHLOROBENZENE                                       ug/L
CDM4A-GW-043         N                   7/18/2006     CHLOROFORM                                          ug/L
CDM4A-GW-043         N                   7/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM4A-GW-043         N                   7/18/2006     TETRACHLOROETHENE                    0.64           ug/L
CDM4A-GW-043         N                   7/18/2006     TOLUENE                                             ug/L
CDM4A-GW-043         N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4A-GW-043         N                   7/18/2006     TRICHLOROETHENE                                     ug/L
CDM4A-GW-043         N                   7/18/2006     TRICHLOROFLUOROMETHANE               0.52           ug/L
CDM4A-GW-043         N                   7/18/2006     VINYL CHLORIDE                                      ug/L
CDM4B-GW-043         N                   7/18/2006     1,1-DICHLOROETHANE                   2.1            ug/L
CDM4B-GW-043         N                   7/18/2006     1,1-DICHLOROETHYLENE                 1              ug/L
CDM4B-GW-043         N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM4B-GW-043         N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM4B-GW-043         N                   7/18/2006     1,2-DICHLOROPROPANE                  0.53           ug/L
CDM4B-GW-043         N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM4B-GW-043         N                   7/18/2006     BENZENE                                             ug/L
CDM4B-GW-043         N                   7/18/2006     CHLOROBENZENE                                       ug/L
CDM4B-GW-043         N                   7/18/2006     CHLOROFORM                           0.51           ug/L
CDM4B-GW-043         N                   7/18/2006     CIS-1,2-DICHLOROETHENE               13             ug/L
CDM4B-GW-043         N                   7/18/2006     TETRACHLOROETHENE                    66             ug/L
CDM4B-GW-043         N                   7/18/2006     TOLUENE                                             ug/L
CDM4B-GW-043         N                   7/18/2006     TRANS-1,2-DICHLOROETHENE             3.3            ug/L
CDM4B-GW-043         N                   7/18/2006     TRICHLOROETHENE                      30             ug/L
CDM4B-GW-043         N                   7/18/2006     TRICHLOROFLUOROMETHANE               4.1            ug/L
CDM4B-GW-043         N                   7/18/2006     VINYL CHLORIDE                                      ug/L
CDM8A-GW-043         N                   7/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM8A-GW-043         N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM8A-GW-043         N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM8A-GW-043         N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM8A-GW-043         N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM8A-GW-043         N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM8A-GW-043         N                   7/18/2006     BENZENE                                             ug/L
CDM8A-GW-043         N                   7/18/2006     CHLOROBENZENE                                       ug/L
CDM8A-GW-043         N                   7/18/2006     CHLOROFORM                                          ug/L
CDM8A-GW-043         N                   7/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM8A-GW-043         N                   7/18/2006     TETRACHLOROETHENE                                   ug/L
CDM8A-GW-043         N                   7/18/2006     TOLUENE                                             ug/L
CDM8A-GW-043         N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8A-GW-043         N                   7/18/2006     TRICHLOROETHENE                                     ug/L
CDM8A-GW-043         N                   7/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM8A-GW-043         N                   7/18/2006     VINYL CHLORIDE                                      ug/L
CDM8B-GW-043         N                   7/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM8B-GW-043         N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM8B-GW-043         N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM8B-GW-043         N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM8B-GW-043         N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM8B-GW-043         N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM8B-GW-043         N                   7/18/2006     BENZENE                                             ug/L
CDM8B-GW-043         N                   7/18/2006     CHLOROBENZENE                                       ug/L
CDM8B-GW-043         N                   7/18/2006     CHLOROFORM                                          ug/L
CDM8B-GW-043         N                   7/18/2006     CIS-1,2-DICHLOROETHENE               1.4            ug/L
CDM8B-GW-043         N                   7/18/2006     TETRACHLOROETHENE                    0.9            ug/L
CDM8B-GW-043         N                   7/18/2006     TOLUENE                                             ug/L
CDM8B-GW-043         N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8B-GW-043         N                   7/18/2006     TRICHLOROETHENE                                     ug/L
CDM8B-GW-043         N                   7/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM8B-GW-043         N                   7/18/2006     VINYL CHLORIDE                                      ug/L
CDM8C-GW-043         N                   7/18/2006     1,1-DICHLOROETHANE                                  ug/L
CDM8C-GW-043         N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM8C-GW-043         N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM8C-GW-043         N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
CDM8C-GW-043         N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM8C-GW-043         N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM8C-GW-043         N                   7/18/2006     BENZENE                                             ug/L
CDM8C-GW-043         N                   7/18/2006     CHLOROBENZENE                                       ug/L



                                                                                24 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM8C-GW-043         N                   7/18/2006     CHLOROFORM                                          ug/L
CDM8C-GW-043         N                   7/18/2006     CIS-1,2-DICHLOROETHENE               1.3            ug/L
CDM8C-GW-043         N                   7/18/2006     TETRACHLOROETHENE                    3.1            ug/L
CDM8C-GW-043         N                   7/18/2006     TOLUENE                                             ug/L
CDM8C-GW-043         N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8C-GW-043         N                   7/18/2006     TRICHLOROETHENE                      1.1            ug/L
CDM8C-GW-043         N                   7/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM8C-GW-043         N                   7/18/2006     VINYL CHLORIDE                                      ug/L
DW2B-GW-043          N                   7/18/2006     1,1-DICHLOROETHANE                                  ug/L
DW2B-GW-043          N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
DW2B-GW-043          N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
DW2B-GW-043          N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
DW2B-GW-043          N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
DW2B-GW-043          N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
DW2B-GW-043          N                   7/18/2006     BENZENE                                             ug/L
DW2B-GW-043          N                   7/18/2006     CHLOROBENZENE                                       ug/L
DW2B-GW-043          N                   7/18/2006     CHLOROFORM                                          ug/L
DW2B-GW-043          N                   7/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
DW2B-GW-043          N                   7/18/2006     TETRACHLOROETHENE                    3              ug/L
DW2B-GW-043          N                   7/18/2006     TOLUENE                                             ug/L
DW2B-GW-043          N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
DW2B-GW-043          N                   7/18/2006     TRICHLOROETHENE                      0.61           ug/L
DW2B-GW-043          N                   7/18/2006     TRICHLOROFLUOROMETHANE               1.4            ug/L
DW2B-GW-043          N                   7/18/2006     VINYL CHLORIDE                                      ug/L
DW2C-GW-043          N                   7/18/2006     1,1-DICHLOROETHANE                                  ug/L
DW2C-GW-043          N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
DW2C-GW-043          N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
DW2C-GW-043          N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
DW2C-GW-043          N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
DW2C-GW-043          N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
DW2C-GW-043          N                   7/18/2006     BENZENE                                             ug/L
DW2C-GW-043          N                   7/18/2006     CHLOROBENZENE                                       ug/L
DW2C-GW-043          N                   7/18/2006     CHLOROFORM                                          ug/L
DW2C-GW-043          N                   7/18/2006     CIS-1,2-DICHLOROETHENE                              ug/L
DW2C-GW-043          N                   7/18/2006     TETRACHLOROETHENE                                   ug/L
DW2C-GW-043          N                   7/18/2006     TOLUENE                                             ug/L
DW2C-GW-043          N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
DW2C-GW-043          N                   7/18/2006     TRICHLOROETHENE                                     ug/L
DW2C-GW-043          N                   7/18/2006     TRICHLOROFLUOROMETHANE                              ug/L
DW2C-GW-043          N                   7/18/2006     VINYL CHLORIDE                                      ug/L
PZ5B2-GW-043         N                   7/18/2006     1,1-DICHLOROETHANE                   0.59           ug/L
PZ5B2-GW-043         N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ5B2-GW-043         N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-043         N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
PZ5B2-GW-043         N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ5B2-GW-043         N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-043         N                   7/18/2006     BENZENE                                             ug/L
PZ5B2-GW-043         N                   7/18/2006     CHLOROBENZENE                                       ug/L
PZ5B2-GW-043         N                   7/18/2006     CHLOROFORM                                          ug/L
PZ5B2-GW-043         N                   7/18/2006     CIS-1,2-DICHLOROETHENE               1.5            ug/L
PZ5B2-GW-043         N                   7/18/2006     TETRACHLOROETHENE                    15             ug/L
PZ5B2-GW-043         N                   7/18/2006     TOLUENE                                             ug/L
PZ5B2-GW-043         N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5B2-GW-043         N                   7/18/2006     TRICHLOROETHENE                      4.2            ug/L
PZ5B2-GW-043         N                   7/18/2006     TRICHLOROFLUOROMETHANE               1.4            ug/L
PZ5B2-GW-043         N                   7/18/2006     VINYL CHLORIDE                                      ug/L
PZ5B-GW-043          N                   7/18/2006     1,1-DICHLOROETHANE                   7.7            ug/L
PZ5B-GW-043          N                   7/18/2006     1,1-DICHLOROETHYLENE                 1.6            ug/L
PZ5B-GW-043          N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ5B-GW-043          N                   7/18/2006     1,2-DICHLOROETHANE                   0.7            ug/L
PZ5B-GW-043          N                   7/18/2006     1,2-DICHLOROPROPANE                  0.69           ug/L
PZ5B-GW-043          N                   7/18/2006     1,4-DICHLOROBENZENE                  2.6            ug/L
PZ5B-GW-043          N                   7/18/2006     BENZENE                              0.66           ug/L
PZ5B-GW-043          N                   7/18/2006     CHLOROBENZENE                                       ug/L
PZ5B-GW-043          N                   7/18/2006     CHLOROFORM                                          ug/L
PZ5B-GW-043          N                   7/18/2006     CIS-1,2-DICHLOROETHENE               43             ug/L
PZ5B-GW-043          N                   7/18/2006     TETRACHLOROETHENE                    100            ug/L
PZ5B-GW-043          N                   7/18/2006     TOLUENE                                             ug/L
PZ5B-GW-043          N                   7/18/2006     TRANS-1,2-DICHLOROETHENE             5.7            ug/L
PZ5B-GW-043          N                   7/18/2006     TRICHLOROETHENE                      32             ug/L
PZ5B-GW-043          N                   7/18/2006     TRICHLOROFLUOROMETHANE               3              ug/L
PZ5B-GW-043          N                   7/18/2006     VINYL CHLORIDE                       47             ug/L
PZ5C-GW-043          N                   7/18/2006     1,1-DICHLOROETHANE                                  ug/L
PZ5C-GW-043          N                   7/18/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ5C-GW-043          N                   7/18/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ5C-GW-043          N                   7/18/2006     1,2-DICHLOROETHANE                                  ug/L
PZ5C-GW-043          N                   7/18/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ5C-GW-043          N                   7/18/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ5C-GW-043          N                   7/18/2006     BENZENE                                             ug/L
PZ5C-GW-043          N                   7/18/2006     CHLOROBENZENE                                       ug/L
PZ5C-GW-043          N                   7/18/2006     CHLOROFORM                                          ug/L
PZ5C-GW-043          N                   7/18/2006     CIS-1,2-DICHLOROETHENE               0.72           ug/L
PZ5C-GW-043          N                   7/18/2006     TETRACHLOROETHENE                    15             ug/L



                                                                                25 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
PZ5C-GW-043          N                   7/18/2006     TOLUENE                                             ug/L
PZ5C-GW-043          N                   7/18/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5C-GW-043          N                   7/18/2006     TRICHLOROETHENE                      3.3            ug/L
PZ5C-GW-043          N                   7/18/2006     TRICHLOROFLUOROMETHANE               1.2            ug/L
PZ5C-GW-043          N                   7/18/2006     VINYL CHLORIDE                                      ug/L
CDM10C-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM10C-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10C-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10C-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10C-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM10C-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM10C-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM10C-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM10C-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM10C-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10C-GW-043        N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM10C-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM10C-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10C-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM10C-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM10C-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM16A-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM16A-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM16A-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM16A-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM16A-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM16A-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM16A-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM16A-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM16A-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM16A-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16A-GW-043        N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM16A-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM16A-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16A-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM16A-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM16A-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM16B-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM16B-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM16B-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM16B-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM16B-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM16B-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM16B-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM16B-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM16B-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM16B-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16B-GW-043        N                   7/19/2006     TETRACHLOROETHENE                    3              ug/L
CDM16B-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM16B-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16B-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM16B-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE               4              ug/L
CDM16B-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM16C-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM16C-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM16C-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM16C-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM16C-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM16C-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM16C-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM16C-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM16C-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM16C-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16C-GW-043        N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM16C-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM16C-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16C-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM16C-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM16C-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM17A-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM17A-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM17A-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM17A-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM17A-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM17A-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM17A-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM17A-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM17A-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM17A-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17A-GW-043        N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM17A-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM17A-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17A-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L



                                                                                26 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM17A-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM17A-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM17B-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM17B-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM17B-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM17B-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM17B-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM17B-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM17B-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM17B-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM17B-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM17B-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17B-GW-043        N                   7/19/2006     TETRACHLOROETHENE                    0.73           ug/L
CDM17B-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM17B-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17B-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM17B-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM17B-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM17C-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM17C-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM17C-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM17C-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM17C-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM17C-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM17C-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM17C-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM17C-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM17C-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17C-GW-043        N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM17C-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM17C-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17C-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM17C-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM17C-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM18A-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM18A-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM18A-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM18A-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM18A-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM18A-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM18A-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM18A-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM18A-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM18A-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18A-GW-043        N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM18A-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM18A-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18A-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM18A-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM18A-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM18B-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM18B-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM18B-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM18B-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM18B-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM18B-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM18B-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM18B-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM18B-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM18B-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18B-GW-043        N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM18B-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM18B-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18B-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM18B-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM18B-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM18C-GW-043        N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM18C-GW-043        N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM18C-GW-043        N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM18C-GW-043        N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM18C-GW-043        N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM18C-GW-043        N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM18C-GW-043        N                   7/19/2006     BENZENE                                             ug/L
CDM18C-GW-043        N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM18C-GW-043        N                   7/19/2006     CHLOROFORM                                          ug/L
CDM18C-GW-043        N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18C-GW-043        N                   7/19/2006     TETRACHLOROETHENE                    0.69           ug/L
CDM18C-GW-043        N                   7/19/2006     TOLUENE                                             ug/L
CDM18C-GW-043        N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18C-GW-043        N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM18C-GW-043        N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM18C-GW-043        N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM5A-GW-043         N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L



                                                                                27 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM5A-GW-043         N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM5A-GW-043         N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM5A-GW-043         N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM5A-GW-043         N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM5A-GW-043         N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM5A-GW-043         N                   7/19/2006     BENZENE                                             ug/L
CDM5A-GW-043         N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM5A-GW-043         N                   7/19/2006     CHLOROFORM                                          ug/L
CDM5A-GW-043         N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM5A-GW-043         N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM5A-GW-043         N                   7/19/2006     TOLUENE                                             ug/L
CDM5A-GW-043         N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5A-GW-043         N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM5A-GW-043         N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM5A-GW-043         N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM5B-GW-043         N                   7/19/2006     1,1-DICHLOROETHANE                   2.3            ug/L
CDM5B-GW-043         N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM5B-GW-043         N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM5B-GW-043         N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM5B-GW-043         N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM5B-GW-043         N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM5B-GW-043         N                   7/19/2006     BENZENE                                             ug/L
CDM5B-GW-043         N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM5B-GW-043         N                   7/19/2006     CHLOROFORM                                          ug/L
CDM5B-GW-043         N                   7/19/2006     CIS-1,2-DICHLOROETHENE               18             ug/L
CDM5B-GW-043         N                   7/19/2006     TETRACHLOROETHENE                    33             ug/L
CDM5B-GW-043         N                   7/19/2006     TOLUENE                                             ug/L
CDM5B-GW-043         N                   7/19/2006     TRANS-1,2-DICHLOROETHENE             1.5            ug/L
CDM5B-GW-043         N                   7/19/2006     TRICHLOROETHENE                      10             ug/L
CDM5B-GW-043         N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM5B-GW-043         N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM9C-GW-043         N                   7/19/2006     1,1-DICHLOROETHANE                                  ug/L
CDM9C-GW-043         N                   7/19/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM9C-GW-043         N                   7/19/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM9C-GW-043         N                   7/19/2006     1,2-DICHLOROETHANE                                  ug/L
CDM9C-GW-043         N                   7/19/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM9C-GW-043         N                   7/19/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM9C-GW-043         N                   7/19/2006     BENZENE                                             ug/L
CDM9C-GW-043         N                   7/19/2006     CHLOROBENZENE                                       ug/L
CDM9C-GW-043         N                   7/19/2006     CHLOROFORM                                          ug/L
CDM9C-GW-043         N                   7/19/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM9C-GW-043         N                   7/19/2006     TETRACHLOROETHENE                                   ug/L
CDM9C-GW-043         N                   7/19/2006     TOLUENE                                             ug/L
CDM9C-GW-043         N                   7/19/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM9C-GW-043         N                   7/19/2006     TRICHLOROETHENE                                     ug/L
CDM9C-GW-043         N                   7/19/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM9C-GW-043         N                   7/19/2006     VINYL CHLORIDE                                      ug/L
CDM10D-GW-043        FD                  7/20/2006     1,1-DICHLOROETHANE                                  ug/L
CDM10D-GW-043        FD                  7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
CDM10D-GW-043        FD                  7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
CDM10D-GW-043        FD                  7/20/2006     1,2-DICHLOROETHANE                                  ug/L
CDM10D-GW-043        FD                  7/20/2006     1,2-DICHLOROPROPANE                                 ug/L
CDM10D-GW-043        FD                  7/20/2006     1,4-DICHLOROBENZENE                                 ug/L
CDM10D-GW-043        FD                  7/20/2006     BENZENE                                             ug/L
CDM10D-GW-043        FD                  7/20/2006     CHLOROBENZENE                                       ug/L
CDM10D-GW-043        FD                  7/20/2006     CHLOROFORM                                          ug/L
CDM10D-GW-043        FD                  7/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10D-GW-043        FD                  7/20/2006     TETRACHLOROETHENE                                   ug/L
CDM10D-GW-043        FD                  7/20/2006     TOLUENE                                             ug/L
CDM10D-GW-043        FD                  7/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10D-GW-043        FD                  7/20/2006     TRICHLOROETHENE                                     ug/L
CDM10D-GW-043        FD                  7/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
CDM10D-GW-043        FD                  7/20/2006     VINYL CHLORIDE                                      ug/L
EFF-GW-043           N                   7/20/2006     1,1-DICHLOROETHANE                                  ug/L
EFF-GW-043           N                   7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
EFF-GW-043           N                   7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
EFF-GW-043           N                   7/20/2006     1,2-DICHLOROETHANE                                  ug/L
EFF-GW-043           N                   7/20/2006     1,2-DICHLOROPROPANE                                 ug/L
EFF-GW-043           N                   7/20/2006     1,4-DICHLOROBENZENE                                 ug/L
EFF-GW-043           N                   7/20/2006     BENZENE                                             ug/L
EFF-GW-043           N                   7/20/2006     CHLOROBENZENE                                       ug/L
EFF-GW-043           N                   7/20/2006     CHLOROFORM                                          ug/L
EFF-GW-043           N                   7/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
EFF-GW-043           N                   7/20/2006     TETRACHLOROETHENE                                   ug/L
EFF-GW-043           N                   7/20/2006     TOLUENE                                             ug/L
EFF-GW-043           N                   7/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
EFF-GW-043           N                   7/20/2006     TRICHLOROETHENE                                     ug/L
EFF-GW-043           N                   7/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
EFF-GW-043           N                   7/20/2006     VINYL CHLORIDE                                      ug/L
INF-GW-043           N                   7/20/2006     1,1-DICHLOROETHANE                   1.2            ug/L
INF-GW-043           N                   7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
INF-GW-043           N                   7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
INF-GW-043           N                   7/20/2006     1,2-DICHLOROETHANE                                  ug/L



                                                                                28 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
INF-GW-043           N                   7/20/2006     1,2-DICHLOROPROPANE                  0.54           ug/L
INF-GW-043           N                   7/20/2006     1,4-DICHLOROBENZENE                  1.4            ug/L
INF-GW-043           N                   7/20/2006     BENZENE                                             ug/L
INF-GW-043           N                   7/20/2006     CHLOROBENZENE                                       ug/L
INF-GW-043           N                   7/20/2006     CHLOROFORM                                          ug/L
INF-GW-043           N                   7/20/2006     CIS-1,2-DICHLOROETHENE               26             ug/L
INF-GW-043           N                   7/20/2006     TETRACHLOROETHENE                    14             ug/L
INF-GW-043           N                   7/20/2006     TOLUENE                                             ug/L
INF-GW-043           N                   7/20/2006     TRANS-1,2-DICHLOROETHENE             1.3            ug/L
INF-GW-043           N                   7/20/2006     TRICHLOROETHENE                      7.1            ug/L
INF-GW-043           N                   7/20/2006     TRICHLOROFLUOROMETHANE               0.8            ug/L
INF-GW-043           N                   7/20/2006     VINYL CHLORIDE                       1.4            ug/L
PW5A-GW-043          N                   7/20/2006     1,1-DICHLOROETHANE                   0.6            ug/L
PW5A-GW-043          N                   7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PW5A-GW-043          N                   7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PW5A-GW-043          N                   7/20/2006     1,2-DICHLOROETHANE                                  ug/L
PW5A-GW-043          N                   7/20/2006     1,2-DICHLOROPROPANE                  0.75           ug/L
PW5A-GW-043          N                   7/20/2006     1,4-DICHLOROBENZENE                  1.9            ug/L
PW5A-GW-043          N                   7/20/2006     BENZENE                                             ug/L
PW5A-GW-043          N                   7/20/2006     CHLOROBENZENE                                       ug/L
PW5A-GW-043          N                   7/20/2006     CHLOROFORM                                          ug/L
PW5A-GW-043          N                   7/20/2006     CIS-1,2-DICHLOROETHENE               28             ug/L
PW5A-GW-043          N                   7/20/2006     TETRACHLOROETHENE                    14             ug/L
PW5A-GW-043          N                   7/20/2006     TOLUENE                                             ug/L
PW5A-GW-043          N                   7/20/2006     TRANS-1,2-DICHLOROETHENE             2.9            ug/L
PW5A-GW-043          N                   7/20/2006     TRICHLOROETHENE                      11             ug/L
PW5A-GW-043          N                   7/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PW5A-GW-043          N                   7/20/2006     VINYL CHLORIDE                       1.5            ug/L
PZ2A-GW-043          N                   7/20/2006     1,1-DICHLOROETHANE                                  ug/L
PZ2A-GW-043          N                   7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ2A-GW-043          N                   7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ2A-GW-043          N                   7/20/2006     1,2-DICHLOROETHANE                                  ug/L
PZ2A-GW-043          N                   7/20/2006     1,2-DICHLOROPROPANE                  0.59           ug/L
PZ2A-GW-043          N                   7/20/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ2A-GW-043          N                   7/20/2006     BENZENE                                             ug/L
PZ2A-GW-043          N                   7/20/2006     CHLOROBENZENE                                       ug/L
PZ2A-GW-043          N                   7/20/2006     CHLOROFORM                                          ug/L
PZ2A-GW-043          N                   7/20/2006     CIS-1,2-DICHLOROETHENE               14             ug/L
PZ2A-GW-043          N                   7/20/2006     TETRACHLOROETHENE                    1.2            ug/L
PZ2A-GW-043          N                   7/20/2006     TOLUENE                                             ug/L
PZ2A-GW-043          N                   7/20/2006     TRANS-1,2-DICHLOROETHENE             0.62           ug/L
PZ2A-GW-043          N                   7/20/2006     TRICHLOROETHENE                      0.92           ug/L
PZ2A-GW-043          N                   7/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PZ2A-GW-043          N                   7/20/2006     VINYL CHLORIDE                                      ug/L
PZ2B-GW-043          N                   7/20/2006     1,1-DICHLOROETHANE                                  ug/L
PZ2B-GW-043          N                   7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ2B-GW-043          N                   7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ2B-GW-043          N                   7/20/2006     1,2-DICHLOROETHANE                                  ug/L
PZ2B-GW-043          N                   7/20/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ2B-GW-043          N                   7/20/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ2B-GW-043          N                   7/20/2006     BENZENE                                             ug/L
PZ2B-GW-043          N                   7/20/2006     CHLOROBENZENE                                       ug/L
PZ2B-GW-043          N                   7/20/2006     CHLOROFORM                                          ug/L
PZ2B-GW-043          N                   7/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
PZ2B-GW-043          N                   7/20/2006     TETRACHLOROETHENE                                   ug/L
PZ2B-GW-043          N                   7/20/2006     TOLUENE                                             ug/L
PZ2B-GW-043          N                   7/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ2B-GW-043          N                   7/20/2006     TRICHLOROETHENE                                     ug/L
PZ2B-GW-043          N                   7/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PZ2B-GW-043          N                   7/20/2006     VINYL CHLORIDE                                      ug/L
PZ4B-GW-043          N                   7/20/2006     1,1-DICHLOROETHANE                                  ug/L
PZ4B-GW-043          N                   7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
PZ4B-GW-043          N                   7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
PZ4B-GW-043          N                   7/20/2006     1,2-DICHLOROETHANE                                  ug/L
PZ4B-GW-043          N                   7/20/2006     1,2-DICHLOROPROPANE                                 ug/L
PZ4B-GW-043          N                   7/20/2006     1,4-DICHLOROBENZENE                                 ug/L
PZ4B-GW-043          N                   7/20/2006     BENZENE                                             ug/L
PZ4B-GW-043          N                   7/20/2006     CHLOROBENZENE                                       ug/L
PZ4B-GW-043          N                   7/20/2006     CHLOROFORM                                          ug/L
PZ4B-GW-043          N                   7/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
PZ4B-GW-043          N                   7/20/2006     TETRACHLOROETHENE                    1.2            ug/L
PZ4B-GW-043          N                   7/20/2006     TOLUENE                                             ug/L
PZ4B-GW-043          N                   7/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ4B-GW-043          N                   7/20/2006     TRICHLOROETHENE                                     ug/L
PZ4B-GW-043          N                   7/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
PZ4B-GW-043          N                   7/20/2006     VINYL CHLORIDE                                      ug/L
W6-GW-043            N                   7/20/2006     1,1-DICHLOROETHANE                                  ug/L
W6-GW-043            N                   7/20/2006     1,1-DICHLOROETHYLENE                                ug/L
W6-GW-043            N                   7/20/2006     1,2-DICHLOROBENZENE                                 ug/L
W6-GW-043            N                   7/20/2006     1,2-DICHLOROETHANE                                  ug/L
W6-GW-043            N                   7/20/2006     1,2-DICHLOROPROPANE                                 ug/L
W6-GW-043            N                   7/20/2006     1,4-DICHLOROBENZENE                                 ug/L
W6-GW-043            N                   7/20/2006     BENZENE                                             ug/L



                                                                                29 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
W6-GW-043            N                   7/20/2006     CHLOROBENZENE                                       ug/L
W6-GW-043            N                   7/20/2006     CHLOROFORM                                          ug/L
W6-GW-043            N                   7/20/2006     CIS-1,2-DICHLOROETHENE                              ug/L
W6-GW-043            N                   7/20/2006     TETRACHLOROETHENE                    0.55           ug/L
W6-GW-043            N                   7/20/2006     TOLUENE                                             ug/L
W6-GW-043            N                   7/20/2006     TRANS-1,2-DICHLOROETHENE                            ug/L
W6-GW-043            N                   7/20/2006     TRICHLOROETHENE                                     ug/L
W6-GW-043            N                   7/20/2006     TRICHLOROFLUOROMETHANE                              ug/L
W6-GW-043            N                   7/20/2006     VINYL CHLORIDE                                      ug/L
CDM10A-GW-044        FD                  10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM10A-GW-044        FD                  10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM10A-GW-044        FD                  10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM10A-GW-044        FD                  10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM10A-GW-044        FD                  10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM10A-GW-044        FD                  10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM10A-GW-044        FD                  10/23/2006    BENZENE                                             ug/L
CDM10A-GW-044        FD                  10/23/2006    CHLOROBENZENE                                       ug/L
CDM10A-GW-044        FD                  10/23/2006    CHLOROFORM                                          ug/L
CDM10A-GW-044        FD                  10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM10A-GW-044        FD                  10/23/2006    TETRACHLOROETHENE                                   ug/L
CDM10A-GW-044        FD                  10/23/2006    TOLUENE                                             ug/L
CDM10A-GW-044        FD                  10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10A-GW-044        FD                  10/23/2006    TRICHLOROETHENE                                     ug/L
CDM10A-GW-044        FD                  10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM10A-GW-044        FD                  10/23/2006    VINYL CHLORIDE                                      ug/L
CDM15A-GW-044        N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM15A-GW-044        N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM15A-GW-044        N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM15A-GW-044        N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM15A-GW-044        N                   10/23/2006    1,2-DICHLOROPROPANE                  0.75           ug/L
CDM15A-GW-044        N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM15A-GW-044        N                   10/23/2006    BENZENE                                             ug/L
CDM15A-GW-044        N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM15A-GW-044        N                   10/23/2006    CHLOROFORM                                          ug/L
CDM15A-GW-044        N                   10/23/2006    CIS-1,2-DICHLOROETHENE               28             ug/L
CDM15A-GW-044        N                   10/23/2006    TETRACHLOROETHENE                    5              ug/L
CDM15A-GW-044        N                   10/23/2006    TOLUENE                                             ug/L
CDM15A-GW-044        N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15A-GW-044        N                   10/23/2006    TRICHLOROETHENE                      1.2            ug/L
CDM15A-GW-044        N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM15A-GW-044        N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM15B2-GW-044       N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM15B2-GW-044       N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM15B2-GW-044       N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-044       N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM15B2-GW-044       N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM15B2-GW-044       N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-044       N                   10/23/2006    BENZENE                                             ug/L
CDM15B2-GW-044       N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM15B2-GW-044       N                   10/23/2006    CHLOROFORM                                          ug/L
CDM15B2-GW-044       N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM15B2-GW-044       N                   10/23/2006    TETRACHLOROETHENE                    5.3            ug/L
CDM15B2-GW-044       N                   10/23/2006    TOLUENE                                             ug/L
CDM15B2-GW-044       N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B2-GW-044       N                   10/23/2006    TRICHLOROETHENE                      0.73           ug/L
CDM15B2-GW-044       N                   10/23/2006    TRICHLOROFLUOROMETHANE               0.93           ug/L
CDM15B2-GW-044       N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM15B-GW-044        N                   10/23/2006    1,1-DICHLOROETHANE                   0.65           ug/L
CDM15B-GW-044        N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM15B-GW-044        N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM15B-GW-044        N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM15B-GW-044        N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM15B-GW-044        N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM15B-GW-044        N                   10/23/2006    BENZENE                                             ug/L
CDM15B-GW-044        N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM15B-GW-044        N                   10/23/2006    CHLOROFORM                                          ug/L
CDM15B-GW-044        N                   10/23/2006    CIS-1,2-DICHLOROETHENE               0.79           ug/L
CDM15B-GW-044        N                   10/23/2006    TETRACHLOROETHENE                    29             ug/L
CDM15B-GW-044        N                   10/23/2006    TOLUENE                                             ug/L
CDM15B-GW-044        N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B-GW-044        N                   10/23/2006    TRICHLOROETHENE                      2.8            ug/L
CDM15B-GW-044        N                   10/23/2006    TRICHLOROFLUOROMETHANE               5.1            ug/L
CDM15B-GW-044        N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM15C-GW-044        N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM15C-GW-044        N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM15C-GW-044        N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM15C-GW-044        N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM15C-GW-044        N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM15C-GW-044        N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM15C-GW-044        N                   10/23/2006    BENZENE                                             ug/L
CDM15C-GW-044        N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM15C-GW-044        N                   10/23/2006    CHLOROFORM                                          ug/L
CDM15C-GW-044        N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L



                                                                                30 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM15C-GW-044        N                   10/23/2006    TETRACHLOROETHENE                                   ug/L
CDM15C-GW-044        N                   10/23/2006    TOLUENE                                             ug/L
CDM15C-GW-044        N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15C-GW-044        N                   10/23/2006    TRICHLOROETHENE                                     ug/L
CDM15C-GW-044        N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM15C-GW-044        N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM1A-GW-044         N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM1A-GW-044         N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM1A-GW-044         N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM1A-GW-044         N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM1A-GW-044         N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM1A-GW-044         N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM1A-GW-044         N                   10/23/2006    BENZENE                                             ug/L
CDM1A-GW-044         N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM1A-GW-044         N                   10/23/2006    CHLOROFORM                                          ug/L
CDM1A-GW-044         N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM1A-GW-044         N                   10/23/2006    TETRACHLOROETHENE                                   ug/L
CDM1A-GW-044         N                   10/23/2006    TOLUENE                                             ug/L
CDM1A-GW-044         N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM1A-GW-044         N                   10/23/2006    TRICHLOROETHENE                                     ug/L
CDM1A-GW-044         N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM1A-GW-044         N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM1B-GW-044         N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM1B-GW-044         N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM1B-GW-044         N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM1B-GW-044         N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM1B-GW-044         N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM1B-GW-044         N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM1B-GW-044         N                   10/23/2006    BENZENE                                             ug/L
CDM1B-GW-044         N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM1B-GW-044         N                   10/23/2006    CHLOROFORM                                          ug/L
CDM1B-GW-044         N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM1B-GW-044         N                   10/23/2006    TETRACHLOROETHENE                                   ug/L
CDM1B-GW-044         N                   10/23/2006    TOLUENE                                             ug/L
CDM1B-GW-044         N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM1B-GW-044         N                   10/23/2006    TRICHLOROETHENE                                     ug/L
CDM1B-GW-044         N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM1B-GW-044         N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM1C-GW-044         N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM1C-GW-044         N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM1C-GW-044         N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM1C-GW-044         N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM1C-GW-044         N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM1C-GW-044         N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM1C-GW-044         N                   10/23/2006    BENZENE                                             ug/L
CDM1C-GW-044         N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM1C-GW-044         N                   10/23/2006    CHLOROFORM                                          ug/L
CDM1C-GW-044         N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM1C-GW-044         N                   10/23/2006    TETRACHLOROETHENE                                   ug/L
CDM1C-GW-044         N                   10/23/2006    TOLUENE                                             ug/L
CDM1C-GW-044         N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM1C-GW-044         N                   10/23/2006    TRICHLOROETHENE                                     ug/L
CDM1C-GW-044         N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM1C-GW-044         N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM6A-GW-044         N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM6A-GW-044         N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM6A-GW-044         N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM6A-GW-044         N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM6A-GW-044         N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM6A-GW-044         N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM6A-GW-044         N                   10/23/2006    BENZENE                                             ug/L
CDM6A-GW-044         N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM6A-GW-044         N                   10/23/2006    CHLOROFORM                                          ug/L
CDM6A-GW-044         N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM6A-GW-044         N                   10/23/2006    TETRACHLOROETHENE                    3.8            ug/L
CDM6A-GW-044         N                   10/23/2006    TOLUENE                                             ug/L
CDM6A-GW-044         N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM6A-GW-044         N                   10/23/2006    TRICHLOROETHENE                                     ug/L
CDM6A-GW-044         N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM6A-GW-044         N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM7A-GW-044         N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM7A-GW-044         N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM7A-GW-044         N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM7A-GW-044         N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM7A-GW-044         N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM7A-GW-044         N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM7A-GW-044         N                   10/23/2006    BENZENE                                             ug/L
CDM7A-GW-044         N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM7A-GW-044         N                   10/23/2006    CHLOROFORM                                          ug/L
CDM7A-GW-044         N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM7A-GW-044         N                   10/23/2006    TETRACHLOROETHENE                                   ug/L
CDM7A-GW-044         N                   10/23/2006    TOLUENE                                             ug/L
CDM7A-GW-044         N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L



                                                                                31 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM7A-GW-044         N                   10/23/2006    TRICHLOROETHENE                                     ug/L
CDM7A-GW-044         N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM7A-GW-044         N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM7C-GW-044         N                   10/23/2006    1,1-DICHLOROETHANE                                  ug/L
CDM7C-GW-044         N                   10/23/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM7C-GW-044         N                   10/23/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM7C-GW-044         N                   10/23/2006    1,2-DICHLOROETHANE                                  ug/L
CDM7C-GW-044         N                   10/23/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM7C-GW-044         N                   10/23/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM7C-GW-044         N                   10/23/2006    BENZENE                                             ug/L
CDM7C-GW-044         N                   10/23/2006    CHLOROBENZENE                                       ug/L
CDM7C-GW-044         N                   10/23/2006    CHLOROFORM                                          ug/L
CDM7C-GW-044         N                   10/23/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM7C-GW-044         N                   10/23/2006    TETRACHLOROETHENE                                   ug/L
CDM7C-GW-044         N                   10/23/2006    TOLUENE                                             ug/L
CDM7C-GW-044         N                   10/23/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM7C-GW-044         N                   10/23/2006    TRICHLOROETHENE                                     ug/L
CDM7C-GW-044         N                   10/23/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM7C-GW-044         N                   10/23/2006    VINYL CHLORIDE                                      ug/L
CDM10B-GW-044        FD                  10/24/2006    1,1-DICHLOROETHANE                                  ug/L
CDM10B-GW-044        FD                  10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM10B-GW-044        FD                  10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM10B-GW-044        FD                  10/24/2006    1,2-DICHLOROETHANE                                  ug/L
CDM10B-GW-044        FD                  10/24/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM10B-GW-044        FD                  10/24/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM10B-GW-044        FD                  10/24/2006    BENZENE                                             ug/L
CDM10B-GW-044        FD                  10/24/2006    CHLOROBENZENE                                       ug/L
CDM10B-GW-044        FD                  10/24/2006    CHLOROFORM                                          ug/L
CDM10B-GW-044        FD                  10/24/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM10B-GW-044        FD                  10/24/2006    TETRACHLOROETHENE                    12             ug/L
CDM10B-GW-044        FD                  10/24/2006    TOLUENE                                             ug/L
CDM10B-GW-044        FD                  10/24/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10B-GW-044        FD                  10/24/2006    TRICHLOROETHENE                      2.9            ug/L
CDM10B-GW-044        FD                  10/24/2006    TRICHLOROFLUOROMETHANE               0.68           ug/L
CDM10B-GW-044        FD                  10/24/2006    VINYL CHLORIDE                                      ug/L
CDM12A-GW-044        N                   10/24/2006    1,1-DICHLOROETHANE                   5              ug/L
CDM12A-GW-044        N                   10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM12A-GW-044        N                   10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM12A-GW-044        N                   10/24/2006    1,2-DICHLOROETHANE                                  ug/L
CDM12A-GW-044        N                   10/24/2006    1,2-DICHLOROPROPANE                  2.1            ug/L
CDM12A-GW-044        N                   10/24/2006    1,4-DICHLOROBENZENE                  1.7            ug/L
CDM12A-GW-044        N                   10/24/2006    BENZENE                              0.78           ug/L
CDM12A-GW-044        N                   10/24/2006    CHLOROBENZENE                                       ug/L
CDM12A-GW-044        N                   10/24/2006    CHLOROFORM                                          ug/L
CDM12A-GW-044        N                   10/24/2006    CIS-1,2-DICHLOROETHENE               180            ug/L
CDM12A-GW-044        N                   10/24/2006    TETRACHLOROETHENE                    8.7            ug/L
CDM12A-GW-044        N                   10/24/2006    TOLUENE                                             ug/L
CDM12A-GW-044        N                   10/24/2006    TRANS-1,2-DICHLOROETHENE             12             ug/L
CDM12A-GW-044        N                   10/24/2006    TRICHLOROETHENE                      9.2            ug/L
CDM12A-GW-044        N                   10/24/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM12A-GW-044        N                   10/24/2006    VINYL CHLORIDE                       12             ug/L
CDM12B-GW-044        N                   10/24/2006    1,1-DICHLOROETHANE                   1.7            ug/L
CDM12B-GW-044        N                   10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM12B-GW-044        N                   10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM12B-GW-044        N                   10/24/2006    1,2-DICHLOROETHANE                                  ug/L
CDM12B-GW-044        N                   10/24/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM12B-GW-044        N                   10/24/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM12B-GW-044        N                   10/24/2006    BENZENE                                             ug/L
CDM12B-GW-044        N                   10/24/2006    CHLOROBENZENE                                       ug/L
CDM12B-GW-044        N                   10/24/2006    CHLOROFORM                                          ug/L
CDM12B-GW-044        N                   10/24/2006    CIS-1,2-DICHLOROETHENE               25             ug/L
CDM12B-GW-044        N                   10/24/2006    TETRACHLOROETHENE                    21             ug/L
CDM12B-GW-044        N                   10/24/2006    TOLUENE                                             ug/L
CDM12B-GW-044        N                   10/24/2006    TRANS-1,2-DICHLOROETHENE             2.2            ug/L
CDM12B-GW-044        N                   10/24/2006    TRICHLOROETHENE                      10             ug/L
CDM12B-GW-044        N                   10/24/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM12B-GW-044        N                   10/24/2006    VINYL CHLORIDE                       6.9            ug/L
CDM13A-GW-044        N                   10/24/2006    1,1-DICHLOROETHANE                   2              ug/L
CDM13A-GW-044        N                   10/24/2006    1,1-DICHLOROETHYLENE                 0.7            ug/L
CDM13A-GW-044        N                   10/24/2006    1,2-DICHLOROBENZENE                  0.72           ug/L
CDM13A-GW-044        N                   10/24/2006    1,2-DICHLOROETHANE                   0.88           ug/L
CDM13A-GW-044        N                   10/24/2006    1,2-DICHLOROPROPANE                  2.6            ug/L
CDM13A-GW-044        N                   10/24/2006    1,4-DICHLOROBENZENE                  6.9            ug/L
CDM13A-GW-044        N                   10/24/2006    BENZENE                                             ug/L
CDM13A-GW-044        N                   10/24/2006    CHLOROBENZENE                                       ug/L
CDM13A-GW-044        N                   10/24/2006    CHLOROFORM                                          ug/L
CDM13A-GW-044        N                   10/24/2006    CIS-1,2-DICHLOROETHENE               160            ug/L
CDM13A-GW-044        N                   10/24/2006    TETRACHLOROETHENE                    9.6            ug/L
CDM13A-GW-044        N                   10/24/2006    TOLUENE                                             ug/L
CDM13A-GW-044        N                   10/24/2006    TRANS-1,2-DICHLOROETHENE             6.8            ug/L
CDM13A-GW-044        N                   10/24/2006    TRICHLOROETHENE                      21             ug/L
CDM13A-GW-044        N                   10/24/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM13A-GW-044        N                   10/24/2006    VINYL CHLORIDE                       3.5            ug/L



                                                                                32 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM13B2-GW-044       N                   10/24/2006    1,1-DICHLOROETHANE                                  ug/L
CDM13B2-GW-044       N                   10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM13B2-GW-044       N                   10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-044       N                   10/24/2006    1,2-DICHLOROETHANE                                  ug/L
CDM13B2-GW-044       N                   10/24/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM13B2-GW-044       N                   10/24/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-044       N                   10/24/2006    BENZENE                                             ug/L
CDM13B2-GW-044       N                   10/24/2006    CHLOROBENZENE                                       ug/L
CDM13B2-GW-044       N                   10/24/2006    CHLOROFORM                                          ug/L
CDM13B2-GW-044       N                   10/24/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM13B2-GW-044       N                   10/24/2006    TETRACHLOROETHENE                                   ug/L
CDM13B2-GW-044       N                   10/24/2006    TOLUENE                                             ug/L
CDM13B2-GW-044       N                   10/24/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13B2-GW-044       N                   10/24/2006    TRICHLOROETHENE                                     ug/L
CDM13B2-GW-044       N                   10/24/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM13B2-GW-044       N                   10/24/2006    VINYL CHLORIDE                                      ug/L
CDM13B-GW-044        N                   10/24/2006    1,1-DICHLOROETHANE                                  ug/L
CDM13B-GW-044        N                   10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM13B-GW-044        N                   10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM13B-GW-044        N                   10/24/2006    1,2-DICHLOROETHANE                                  ug/L
CDM13B-GW-044        N                   10/24/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM13B-GW-044        N                   10/24/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM13B-GW-044        N                   10/24/2006    BENZENE                                             ug/L
CDM13B-GW-044        N                   10/24/2006    CHLOROBENZENE                                       ug/L
CDM13B-GW-044        N                   10/24/2006    CHLOROFORM                                          ug/L
CDM13B-GW-044        N                   10/24/2006    CIS-1,2-DICHLOROETHENE               2              ug/L
CDM13B-GW-044        N                   10/24/2006    TETRACHLOROETHENE                    5.7            ug/L
CDM13B-GW-044        N                   10/24/2006    TOLUENE                                             ug/L
CDM13B-GW-044        N                   10/24/2006    TRANS-1,2-DICHLOROETHENE             0.61           ug/L
CDM13B-GW-044        N                   10/24/2006    TRICHLOROETHENE                      3              ug/L
CDM13B-GW-044        N                   10/24/2006    TRICHLOROFLUOROMETHANE               0.99           ug/L
CDM13B-GW-044        N                   10/24/2006    VINYL CHLORIDE                       1.1            ug/L
CDM13C-GW-044        N                   10/24/2006    1,1-DICHLOROETHANE                                  ug/L
CDM13C-GW-044        N                   10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM13C-GW-044        N                   10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM13C-GW-044        N                   10/24/2006    1,2-DICHLOROETHANE                                  ug/L
CDM13C-GW-044        N                   10/24/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM13C-GW-044        N                   10/24/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM13C-GW-044        N                   10/24/2006    BENZENE                                             ug/L
CDM13C-GW-044        N                   10/24/2006    CHLOROBENZENE                                       ug/L
CDM13C-GW-044        N                   10/24/2006    CHLOROFORM                                          ug/L
CDM13C-GW-044        N                   10/24/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM13C-GW-044        N                   10/24/2006    TETRACHLOROETHENE                                   ug/L
CDM13C-GW-044        N                   10/24/2006    TOLUENE                                             ug/L
CDM13C-GW-044        N                   10/24/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13C-GW-044        N                   10/24/2006    TRICHLOROETHENE                                     ug/L
CDM13C-GW-044        N                   10/24/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM13C-GW-044        N                   10/24/2006    VINYL CHLORIDE                                      ug/L
PZ5B2-GW-044         N                   10/24/2006    1,1-DICHLOROETHANE                                  ug/L
PZ5B2-GW-044         N                   10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
PZ5B2-GW-044         N                   10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-044         N                   10/24/2006    1,2-DICHLOROETHANE                                  ug/L
PZ5B2-GW-044         N                   10/24/2006    1,2-DICHLOROPROPANE                                 ug/L
PZ5B2-GW-044         N                   10/24/2006    1,4-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-044         N                   10/24/2006    BENZENE                                             ug/L
PZ5B2-GW-044         N                   10/24/2006    CHLOROBENZENE                                       ug/L
PZ5B2-GW-044         N                   10/24/2006    CHLOROFORM                                          ug/L
PZ5B2-GW-044         N                   10/24/2006    CIS-1,2-DICHLOROETHENE               0.91           ug/L
PZ5B2-GW-044         N                   10/24/2006    TETRACHLOROETHENE                    13             ug/L
PZ5B2-GW-044         N                   10/24/2006    TOLUENE                                             ug/L
PZ5B2-GW-044         N                   10/24/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5B2-GW-044         N                   10/24/2006    TRICHLOROETHENE                      3.6            ug/L
PZ5B2-GW-044         N                   10/24/2006    TRICHLOROFLUOROMETHANE               0.65           ug/L
PZ5B2-GW-044         N                   10/24/2006    VINYL CHLORIDE                                      ug/L
PZ5C-GW-044          N                   10/24/2006    1,1-DICHLOROETHANE                                  ug/L
PZ5C-GW-044          N                   10/24/2006    1,1-DICHLOROETHYLENE                                ug/L
PZ5C-GW-044          N                   10/24/2006    1,2-DICHLOROBENZENE                                 ug/L
PZ5C-GW-044          N                   10/24/2006    1,2-DICHLOROETHANE                                  ug/L
PZ5C-GW-044          N                   10/24/2006    1,2-DICHLOROPROPANE                                 ug/L
PZ5C-GW-044          N                   10/24/2006    1,4-DICHLOROBENZENE                                 ug/L
PZ5C-GW-044          N                   10/24/2006    BENZENE                                             ug/L
PZ5C-GW-044          N                   10/24/2006    CHLOROBENZENE                                       ug/L
PZ5C-GW-044          N                   10/24/2006    CHLOROFORM                                          ug/L
PZ5C-GW-044          N                   10/24/2006    CIS-1,2-DICHLOROETHENE                              ug/L
PZ5C-GW-044          N                   10/24/2006    TETRACHLOROETHENE                    12             ug/L
PZ5C-GW-044          N                   10/24/2006    TOLUENE                                             ug/L
PZ5C-GW-044          N                   10/24/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5C-GW-044          N                   10/24/2006    TRICHLOROETHENE                      2.8            ug/L
PZ5C-GW-044          N                   10/24/2006    TRICHLOROFLUOROMETHANE               0.64           ug/L
PZ5C-GW-044          N                   10/24/2006    VINYL CHLORIDE                                      ug/L
CDM10C-GW-044        FD                  10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM10C-GW-044        FD                  10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM10C-GW-044        FD                  10/25/2006    1,2-DICHLOROBENZENE                                 ug/L



                                                                                33 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM10C-GW-044        FD                  10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM10C-GW-044        FD                  10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM10C-GW-044        FD                  10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM10C-GW-044        FD                  10/25/2006    BENZENE                                             ug/L
CDM10C-GW-044        FD                  10/25/2006    CHLOROBENZENE                                       ug/L
CDM10C-GW-044        FD                  10/25/2006    CHLOROFORM                                          ug/L
CDM10C-GW-044        FD                  10/25/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM10C-GW-044        FD                  10/25/2006    TETRACHLOROETHENE                                   ug/L
CDM10C-GW-044        FD                  10/25/2006    TOLUENE                                             ug/L
CDM10C-GW-044        FD                  10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10C-GW-044        FD                  10/25/2006    TRICHLOROETHENE                                     ug/L
CDM10C-GW-044        FD                  10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM10C-GW-044        FD                  10/25/2006    VINYL CHLORIDE                                      ug/L
CDM4A-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM4A-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM4A-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM4A-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM4A-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM4A-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM4A-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM4A-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM4A-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM4A-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM4A-GW-044         N                   10/25/2006    TETRACHLOROETHENE                                   ug/L
CDM4A-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM4A-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4A-GW-044         N                   10/25/2006    TRICHLOROETHENE                                     ug/L
CDM4A-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM4A-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
CDM4B-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                   2.5            ug/L
CDM4B-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM4B-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM4B-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM4B-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                  0.63           ug/L
CDM4B-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM4B-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM4B-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM4B-GW-044         N                   10/25/2006    CHLOROFORM                           0.61           ug/L
CDM4B-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE               15             ug/L
CDM4B-GW-044         N                   10/25/2006    TETRACHLOROETHENE                    59             ug/L
CDM4B-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM4B-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE             3              ug/L
CDM4B-GW-044         N                   10/25/2006    TRICHLOROETHENE                      36             ug/L
CDM4B-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE               3.9            ug/L
CDM4B-GW-044         N                   10/25/2006    VINYL CHLORIDE                       0.9            ug/L
CDM4C-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM4C-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM4C-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM4C-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM4C-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM4C-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM4C-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM4C-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM4C-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM4C-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM4C-GW-044         N                   10/25/2006    TETRACHLOROETHENE                    3.5            ug/L
CDM4C-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM4C-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4C-GW-044         N                   10/25/2006    TRICHLOROETHENE                      1.4            ug/L
CDM4C-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE               0.77           ug/L
CDM4C-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
CDM5A-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM5A-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM5A-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM5A-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM5A-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM5A-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM5A-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM5A-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM5A-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM5A-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM5A-GW-044         N                   10/25/2006    TETRACHLOROETHENE                                   ug/L
CDM5A-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM5A-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5A-GW-044         N                   10/25/2006    TRICHLOROETHENE                                     ug/L
CDM5A-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM5A-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
CDM5B-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                   2.8            ug/L
CDM5B-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM5B-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM5B-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM5B-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                  0.51           ug/L
CDM5B-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L



                                                                                34 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM5B-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM5B-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM5B-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM5B-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE               21             ug/L
CDM5B-GW-044         N                   10/25/2006    TETRACHLOROETHENE                    33             ug/L
CDM5B-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM5B-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE             1.2            ug/L
CDM5B-GW-044         N                   10/25/2006    TRICHLOROETHENE                      11             ug/L
CDM5B-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM5B-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
CDM5C-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM5C-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM5C-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM5C-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM5C-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM5C-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM5C-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM5C-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM5C-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM5C-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM5C-GW-044         N                   10/25/2006    TETRACHLOROETHENE                                   ug/L
CDM5C-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM5C-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5C-GW-044         N                   10/25/2006    TRICHLOROETHENE                                     ug/L
CDM5C-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM5C-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
CDM8A-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM8A-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM8A-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM8A-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM8A-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM8A-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM8A-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM8A-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM8A-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM8A-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM8A-GW-044         N                   10/25/2006    TETRACHLOROETHENE                                   ug/L
CDM8A-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM8A-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8A-GW-044         N                   10/25/2006    TRICHLOROETHENE                                     ug/L
CDM8A-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM8A-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
CDM8B-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM8B-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM8B-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM8B-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM8B-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM8B-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM8B-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM8B-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM8B-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM8B-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE               1.3            ug/L
CDM8B-GW-044         N                   10/25/2006    TETRACHLOROETHENE                    1.1            ug/L
CDM8B-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM8B-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8B-GW-044         N                   10/25/2006    TRICHLOROETHENE                                     ug/L
CDM8B-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM8B-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
CDM8C-GW-044         N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
CDM8C-GW-044         N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM8C-GW-044         N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM8C-GW-044         N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
CDM8C-GW-044         N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM8C-GW-044         N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM8C-GW-044         N                   10/25/2006    BENZENE                                             ug/L
CDM8C-GW-044         N                   10/25/2006    CHLOROBENZENE                                       ug/L
CDM8C-GW-044         N                   10/25/2006    CHLOROFORM                                          ug/L
CDM8C-GW-044         N                   10/25/2006    CIS-1,2-DICHLOROETHENE               1.6            ug/L
CDM8C-GW-044         N                   10/25/2006    TETRACHLOROETHENE                    3.6            ug/L
CDM8C-GW-044         N                   10/25/2006    TOLUENE                                             ug/L
CDM8C-GW-044         N                   10/25/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8C-GW-044         N                   10/25/2006    TRICHLOROETHENE                      1.4            ug/L
CDM8C-GW-044         N                   10/25/2006    TRICHLOROFLUOROMETHANE               0.64           ug/L
CDM8C-GW-044         N                   10/25/2006    VINYL CHLORIDE                                      ug/L
DW1B-GW-044          N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
DW1B-GW-044          N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
DW1B-GW-044          N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
DW1B-GW-044          N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
DW1B-GW-044          N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
DW1B-GW-044          N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
DW1B-GW-044          N                   10/25/2006    BENZENE                                             ug/L
DW1B-GW-044          N                   10/25/2006    CHLOROBENZENE                                       ug/L
DW1B-GW-044          N                   10/25/2006    CHLOROFORM                                          ug/L



                                                                                35 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
DW1B-GW-044          N                   10/25/2006    CIS-1,2-DICHLOROETHENE               6.4            ug/L
DW1B-GW-044          N                   10/25/2006    TETRACHLOROETHENE                    23             ug/L
DW1B-GW-044          N                   10/25/2006    TOLUENE                                             ug/L
DW1B-GW-044          N                   10/25/2006    TRANS-1,2-DICHLOROETHENE             2              ug/L
DW1B-GW-044          N                   10/25/2006    TRICHLOROETHENE                      10             ug/L
DW1B-GW-044          N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
DW1B-GW-044          N                   10/25/2006    VINYL CHLORIDE                       2.6            ug/L
DW1C-GW-044          N                   10/25/2006    1,1-DICHLOROETHANE                                  ug/L
DW1C-GW-044          N                   10/25/2006    1,1-DICHLOROETHYLENE                                ug/L
DW1C-GW-044          N                   10/25/2006    1,2-DICHLOROBENZENE                                 ug/L
DW1C-GW-044          N                   10/25/2006    1,2-DICHLOROETHANE                                  ug/L
DW1C-GW-044          N                   10/25/2006    1,2-DICHLOROPROPANE                                 ug/L
DW1C-GW-044          N                   10/25/2006    1,4-DICHLOROBENZENE                                 ug/L
DW1C-GW-044          N                   10/25/2006    BENZENE                                             ug/L
DW1C-GW-044          N                   10/25/2006    CHLOROBENZENE                                       ug/L
DW1C-GW-044          N                   10/25/2006    CHLOROFORM                                          ug/L
DW1C-GW-044          N                   10/25/2006    CIS-1,2-DICHLOROETHENE               2.7            ug/L
DW1C-GW-044          N                   10/25/2006    TETRACHLOROETHENE                    13             ug/L
DW1C-GW-044          N                   10/25/2006    TOLUENE                                             ug/L
DW1C-GW-044          N                   10/25/2006    TRANS-1,2-DICHLOROETHENE             0.67           ug/L
DW1C-GW-044          N                   10/25/2006    TRICHLOROETHENE                      6.2            ug/L
DW1C-GW-044          N                   10/25/2006    TRICHLOROFLUOROMETHANE                              ug/L
DW1C-GW-044          N                   10/25/2006    VINYL CHLORIDE                       0.93           ug/L
CDM10D-GW-044        FD                  10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM10D-GW-044        FD                  10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM10D-GW-044        FD                  10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM10D-GW-044        FD                  10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM10D-GW-044        FD                  10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM10D-GW-044        FD                  10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM10D-GW-044        FD                  10/26/2006    BENZENE                                             ug/L
CDM10D-GW-044        FD                  10/26/2006    CHLOROBENZENE                                       ug/L
CDM10D-GW-044        FD                  10/26/2006    CHLOROFORM                                          ug/L
CDM10D-GW-044        FD                  10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM10D-GW-044        FD                  10/26/2006    TETRACHLOROETHENE                    0.56           ug/L
CDM10D-GW-044        FD                  10/26/2006    TOLUENE                                             ug/L
CDM10D-GW-044        FD                  10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10D-GW-044        FD                  10/26/2006    TRICHLOROETHENE                                     ug/L
CDM10D-GW-044        FD                  10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM10D-GW-044        FD                  10/26/2006    VINYL CHLORIDE                                      ug/L
CDM16A-GW-044        N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM16A-GW-044        N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM16A-GW-044        N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM16A-GW-044        N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM16A-GW-044        N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM16A-GW-044        N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM16A-GW-044        N                   10/26/2006    BENZENE                                             ug/L
CDM16A-GW-044        N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM16A-GW-044        N                   10/26/2006    CHLOROFORM                                          ug/L
CDM16A-GW-044        N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM16A-GW-044        N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM16A-GW-044        N                   10/26/2006    TOLUENE                                             ug/L
CDM16A-GW-044        N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16A-GW-044        N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM16A-GW-044        N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM16A-GW-044        N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM16B-GW-044        N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM16B-GW-044        N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM16B-GW-044        N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM16B-GW-044        N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM16B-GW-044        N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM16B-GW-044        N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM16B-GW-044        N                   10/26/2006    BENZENE                                             ug/L
CDM16B-GW-044        N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM16B-GW-044        N                   10/26/2006    CHLOROFORM                                          ug/L
CDM16B-GW-044        N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM16B-GW-044        N                   10/26/2006    TETRACHLOROETHENE                    1.9            ug/L
CDM16B-GW-044        N                   10/26/2006    TOLUENE                                             ug/L
CDM16B-GW-044        N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16B-GW-044        N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM16B-GW-044        N                   10/26/2006    TRICHLOROFLUOROMETHANE               2.6            ug/L
CDM16B-GW-044        N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM16C-GW-044        N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM16C-GW-044        N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM16C-GW-044        N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM16C-GW-044        N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM16C-GW-044        N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM16C-GW-044        N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM16C-GW-044        N                   10/26/2006    BENZENE                                             ug/L
CDM16C-GW-044        N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM16C-GW-044        N                   10/26/2006    CHLOROFORM                                          ug/L
CDM16C-GW-044        N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM16C-GW-044        N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM16C-GW-044        N                   10/26/2006    TOLUENE                                             ug/L



                                                                                36 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM16C-GW-044        N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16C-GW-044        N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM16C-GW-044        N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM16C-GW-044        N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM17A-GW-044        N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM17A-GW-044        N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM17A-GW-044        N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM17A-GW-044        N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM17A-GW-044        N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM17A-GW-044        N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM17A-GW-044        N                   10/26/2006    BENZENE                                             ug/L
CDM17A-GW-044        N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM17A-GW-044        N                   10/26/2006    CHLOROFORM                                          ug/L
CDM17A-GW-044        N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM17A-GW-044        N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM17A-GW-044        N                   10/26/2006    TOLUENE                                             ug/L
CDM17A-GW-044        N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17A-GW-044        N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM17A-GW-044        N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM17A-GW-044        N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM17B-GW-044        N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM17B-GW-044        N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM17B-GW-044        N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM17B-GW-044        N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM17B-GW-044        N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM17B-GW-044        N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM17B-GW-044        N                   10/26/2006    BENZENE                                             ug/L
CDM17B-GW-044        N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM17B-GW-044        N                   10/26/2006    CHLOROFORM                                          ug/L
CDM17B-GW-044        N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM17B-GW-044        N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM17B-GW-044        N                   10/26/2006    TOLUENE                                             ug/L
CDM17B-GW-044        N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17B-GW-044        N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM17B-GW-044        N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM17B-GW-044        N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM17C-GW-044        N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM17C-GW-044        N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM17C-GW-044        N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM17C-GW-044        N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM17C-GW-044        N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM17C-GW-044        N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM17C-GW-044        N                   10/26/2006    BENZENE                                             ug/L
CDM17C-GW-044        N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM17C-GW-044        N                   10/26/2006    CHLOROFORM                                          ug/L
CDM17C-GW-044        N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM17C-GW-044        N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM17C-GW-044        N                   10/26/2006    TOLUENE                                             ug/L
CDM17C-GW-044        N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17C-GW-044        N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM17C-GW-044        N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM17C-GW-044        N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM2A-GW-044         N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM2A-GW-044         N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM2A-GW-044         N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM2A-GW-044         N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM2A-GW-044         N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM2A-GW-044         N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM2A-GW-044         N                   10/26/2006    BENZENE                                             ug/L
CDM2A-GW-044         N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM2A-GW-044         N                   10/26/2006    CHLOROFORM                                          ug/L
CDM2A-GW-044         N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM2A-GW-044         N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM2A-GW-044         N                   10/26/2006    TOLUENE                                             ug/L
CDM2A-GW-044         N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM2A-GW-044         N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM2A-GW-044         N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM2A-GW-044         N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM2B-GW-044         N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM2B-GW-044         N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM2B-GW-044         N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM2B-GW-044         N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM2B-GW-044         N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM2B-GW-044         N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM2B-GW-044         N                   10/26/2006    BENZENE                                             ug/L
CDM2B-GW-044         N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM2B-GW-044         N                   10/26/2006    CHLOROFORM                                          ug/L
CDM2B-GW-044         N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM2B-GW-044         N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM2B-GW-044         N                   10/26/2006    TOLUENE                                             ug/L
CDM2B-GW-044         N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM2B-GW-044         N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM2B-GW-044         N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L



                                                                                37 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM2B-GW-044         N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM2C-GW-044         N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM2C-GW-044         N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM2C-GW-044         N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM2C-GW-044         N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM2C-GW-044         N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM2C-GW-044         N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM2C-GW-044         N                   10/26/2006    BENZENE                                             ug/L
CDM2C-GW-044         N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM2C-GW-044         N                   10/26/2006    CHLOROFORM                                          ug/L
CDM2C-GW-044         N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM2C-GW-044         N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM2C-GW-044         N                   10/26/2006    TOLUENE                                             ug/L
CDM2C-GW-044         N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM2C-GW-044         N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM2C-GW-044         N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM2C-GW-044         N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM3A-GW-044         N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM3A-GW-044         N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM3A-GW-044         N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM3A-GW-044         N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM3A-GW-044         N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM3A-GW-044         N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM3A-GW-044         N                   10/26/2006    BENZENE                                             ug/L
CDM3A-GW-044         N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM3A-GW-044         N                   10/26/2006    CHLOROFORM                                          ug/L
CDM3A-GW-044         N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM3A-GW-044         N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM3A-GW-044         N                   10/26/2006    TOLUENE                                             ug/L
CDM3A-GW-044         N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM3A-GW-044         N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM3A-GW-044         N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM3A-GW-044         N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM3B-GW-044         N                   10/26/2006    1,1-DICHLOROETHANE                                  ug/L
CDM3B-GW-044         N                   10/26/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM3B-GW-044         N                   10/26/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM3B-GW-044         N                   10/26/2006    1,2-DICHLOROETHANE                                  ug/L
CDM3B-GW-044         N                   10/26/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM3B-GW-044         N                   10/26/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM3B-GW-044         N                   10/26/2006    BENZENE                                             ug/L
CDM3B-GW-044         N                   10/26/2006    CHLOROBENZENE                                       ug/L
CDM3B-GW-044         N                   10/26/2006    CHLOROFORM                                          ug/L
CDM3B-GW-044         N                   10/26/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM3B-GW-044         N                   10/26/2006    TETRACHLOROETHENE                                   ug/L
CDM3B-GW-044         N                   10/26/2006    TOLUENE                                             ug/L
CDM3B-GW-044         N                   10/26/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM3B-GW-044         N                   10/26/2006    TRICHLOROETHENE                                     ug/L
CDM3B-GW-044         N                   10/26/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM3B-GW-044         N                   10/26/2006    VINYL CHLORIDE                                      ug/L
CDM10E-GW-044        FD                  10/27/2006    1,1-DICHLOROETHANE                   0.68           ug/L
CDM10E-GW-044        FD                  10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM10E-GW-044        FD                  10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM10E-GW-044        FD                  10/27/2006    1,2-DICHLOROETHANE                                  ug/L
CDM10E-GW-044        FD                  10/27/2006    1,2-DICHLOROPROPANE                  0.77           ug/L
CDM10E-GW-044        FD                  10/27/2006    1,4-DICHLOROBENZENE                  1.6            ug/L
CDM10E-GW-044        FD                  10/27/2006    BENZENE                                             ug/L
CDM10E-GW-044        FD                  10/27/2006    CHLOROBENZENE                                       ug/L
CDM10E-GW-044        FD                  10/27/2006    CHLOROFORM                                          ug/L
CDM10E-GW-044        FD                  10/27/2006    CIS-1,2-DICHLOROETHENE               27             ug/L
CDM10E-GW-044        FD                  10/27/2006    TETRACHLOROETHENE                    14             ug/L
CDM10E-GW-044        FD                  10/27/2006    TOLUENE                                             ug/L
CDM10E-GW-044        FD                  10/27/2006    TRANS-1,2-DICHLOROETHENE             2.5            ug/L
CDM10E-GW-044        FD                  10/27/2006    TRICHLOROETHENE                      10             ug/L
CDM10E-GW-044        FD                  10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM10E-GW-044        FD                  10/27/2006    VINYL CHLORIDE                       1.2            ug/L
CDM18A-GW-044        N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
CDM18A-GW-044        N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM18A-GW-044        N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM18A-GW-044        N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
CDM18A-GW-044        N                   10/27/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM18A-GW-044        N                   10/27/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM18A-GW-044        N                   10/27/2006    BENZENE                                             ug/L
CDM18A-GW-044        N                   10/27/2006    CHLOROBENZENE                                       ug/L
CDM18A-GW-044        N                   10/27/2006    CHLOROFORM                                          ug/L
CDM18A-GW-044        N                   10/27/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM18A-GW-044        N                   10/27/2006    TETRACHLOROETHENE                                   ug/L
CDM18A-GW-044        N                   10/27/2006    TOLUENE                                             ug/L
CDM18A-GW-044        N                   10/27/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18A-GW-044        N                   10/27/2006    TRICHLOROETHENE                                     ug/L
CDM18A-GW-044        N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM18A-GW-044        N                   10/27/2006    VINYL CHLORIDE                                      ug/L
CDM18B-GW-044        N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
CDM18B-GW-044        N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L



                                                                                38 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM18B-GW-044        N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM18B-GW-044        N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
CDM18B-GW-044        N                   10/27/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM18B-GW-044        N                   10/27/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM18B-GW-044        N                   10/27/2006    BENZENE                                             ug/L
CDM18B-GW-044        N                   10/27/2006    CHLOROBENZENE                                       ug/L
CDM18B-GW-044        N                   10/27/2006    CHLOROFORM                                          ug/L
CDM18B-GW-044        N                   10/27/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM18B-GW-044        N                   10/27/2006    TETRACHLOROETHENE                                   ug/L
CDM18B-GW-044        N                   10/27/2006    TOLUENE                                             ug/L
CDM18B-GW-044        N                   10/27/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18B-GW-044        N                   10/27/2006    TRICHLOROETHENE                                     ug/L
CDM18B-GW-044        N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM18B-GW-044        N                   10/27/2006    VINYL CHLORIDE                                      ug/L
CDM18C-GW-044        N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
CDM18C-GW-044        N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM18C-GW-044        N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM18C-GW-044        N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
CDM18C-GW-044        N                   10/27/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM18C-GW-044        N                   10/27/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM18C-GW-044        N                   10/27/2006    BENZENE                                             ug/L
CDM18C-GW-044        N                   10/27/2006    CHLOROBENZENE                                       ug/L
CDM18C-GW-044        N                   10/27/2006    CHLOROFORM                                          ug/L
CDM18C-GW-044        N                   10/27/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM18C-GW-044        N                   10/27/2006    TETRACHLOROETHENE                    0.73           ug/L
CDM18C-GW-044        N                   10/27/2006    TOLUENE                                             ug/L
CDM18C-GW-044        N                   10/27/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18C-GW-044        N                   10/27/2006    TRICHLOROETHENE                                     ug/L
CDM18C-GW-044        N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM18C-GW-044        N                   10/27/2006    VINYL CHLORIDE                                      ug/L
MW1-GW-044           N                   10/27/2006    1,1-DICHLOROETHANE                   0.62           ug/L
MW1-GW-044           N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
MW1-GW-044           N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
MW1-GW-044           N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
MW1-GW-044           N                   10/27/2006    1,2-DICHLOROPROPANE                  0.56           ug/L
MW1-GW-044           N                   10/27/2006    1,4-DICHLOROBENZENE                  0.61           ug/L
MW1-GW-044           N                   10/27/2006    BENZENE                                             ug/L
MW1-GW-044           N                   10/27/2006    CHLOROBENZENE                                       ug/L
MW1-GW-044           N                   10/27/2006    CHLOROFORM                                          ug/L
MW1-GW-044           N                   10/27/2006    CIS-1,2-DICHLOROETHENE               37             ug/L
MW1-GW-044           N                   10/27/2006    TETRACHLOROETHENE                    4.4            ug/L
MW1-GW-044           N                   10/27/2006    TOLUENE                                             ug/L
MW1-GW-044           N                   10/27/2006    TRANS-1,2-DICHLOROETHENE             0.74           ug/L
MW1-GW-044           N                   10/27/2006    TRICHLOROETHENE                      2.1            ug/L
MW1-GW-044           N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
MW1-GW-044           N                   10/27/2006    VINYL CHLORIDE                       1.2            ug/L
MW4-GW-044           N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
MW4-GW-044           N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
MW4-GW-044           N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
MW4-GW-044           N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
MW4-GW-044           N                   10/27/2006    1,2-DICHLOROPROPANE                  1.2            ug/L
MW4-GW-044           N                   10/27/2006    1,4-DICHLOROBENZENE                  0.64           ug/L
MW4-GW-044           N                   10/27/2006    BENZENE                                             ug/L
MW4-GW-044           N                   10/27/2006    CHLOROBENZENE                                       ug/L
MW4-GW-044           N                   10/27/2006    CHLOROFORM                                          ug/L
MW4-GW-044           N                   10/27/2006    CIS-1,2-DICHLOROETHENE               3.6            ug/L
MW4-GW-044           N                   10/27/2006    TETRACHLOROETHENE                                   ug/L
MW4-GW-044           N                   10/27/2006    TOLUENE                                             ug/L
MW4-GW-044           N                   10/27/2006    TRANS-1,2-DICHLOROETHENE             1              ug/L
MW4-GW-044           N                   10/27/2006    TRICHLOROETHENE                                     ug/L
MW4-GW-044           N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
MW4-GW-044           N                   10/27/2006    VINYL CHLORIDE                       5.2            ug/L
PW5A-GW-044          N                   10/27/2006    1,1-DICHLOROETHANE                   0.71           ug/L
PW5A-GW-044          N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
PW5A-GW-044          N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
PW5A-GW-044          N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
PW5A-GW-044          N                   10/27/2006    1,2-DICHLOROPROPANE                  0.81           ug/L
PW5A-GW-044          N                   10/27/2006    1,4-DICHLOROBENZENE                  1.8            ug/L
PW5A-GW-044          N                   10/27/2006    BENZENE                                             ug/L
PW5A-GW-044          N                   10/27/2006    CHLOROBENZENE                                       ug/L
PW5A-GW-044          N                   10/27/2006    CHLOROFORM                                          ug/L
PW5A-GW-044          N                   10/27/2006    CIS-1,2-DICHLOROETHENE               29             ug/L
PW5A-GW-044          N                   10/27/2006    TETRACHLOROETHENE                    13             ug/L
PW5A-GW-044          N                   10/27/2006    TOLUENE                                             ug/L
PW5A-GW-044          N                   10/27/2006    TRANS-1,2-DICHLOROETHENE             2.6            ug/L
PW5A-GW-044          N                   10/27/2006    TRICHLOROETHENE                      10             ug/L
PW5A-GW-044          N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
PW5A-GW-044          N                   10/27/2006    VINYL CHLORIDE                       1.2            ug/L
PZ2A-GW-044          N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
PZ2A-GW-044          N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
PZ2A-GW-044          N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
PZ2A-GW-044          N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
PZ2A-GW-044          N                   10/27/2006    1,2-DICHLOROPROPANE                  0.82           ug/L



                                                                                39 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
PZ2A-GW-044          N                   10/27/2006    1,4-DICHLOROBENZENE                                 ug/L
PZ2A-GW-044          N                   10/27/2006    BENZENE                                             ug/L
PZ2A-GW-044          N                   10/27/2006    CHLOROBENZENE                                       ug/L
PZ2A-GW-044          N                   10/27/2006    CHLOROFORM                                          ug/L
PZ2A-GW-044          N                   10/27/2006    CIS-1,2-DICHLOROETHENE               20             ug/L
PZ2A-GW-044          N                   10/27/2006    TETRACHLOROETHENE                    3.6            ug/L
PZ2A-GW-044          N                   10/27/2006    TOLUENE                                             ug/L
PZ2A-GW-044          N                   10/27/2006    TRANS-1,2-DICHLOROETHENE             0.62           ug/L
PZ2A-GW-044          N                   10/27/2006    TRICHLOROETHENE                      1.9            ug/L
PZ2A-GW-044          N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
PZ2A-GW-044          N                   10/27/2006    VINYL CHLORIDE                                      ug/L
PZ2B-GW-044          N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
PZ2B-GW-044          N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
PZ2B-GW-044          N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
PZ2B-GW-044          N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
PZ2B-GW-044          N                   10/27/2006    1,2-DICHLOROPROPANE                                 ug/L
PZ2B-GW-044          N                   10/27/2006    1,4-DICHLOROBENZENE                                 ug/L
PZ2B-GW-044          N                   10/27/2006    BENZENE                                             ug/L
PZ2B-GW-044          N                   10/27/2006    CHLOROBENZENE                                       ug/L
PZ2B-GW-044          N                   10/27/2006    CHLOROFORM                                          ug/L
PZ2B-GW-044          N                   10/27/2006    CIS-1,2-DICHLOROETHENE                              ug/L
PZ2B-GW-044          N                   10/27/2006    TETRACHLOROETHENE                                   ug/L
PZ2B-GW-044          N                   10/27/2006    TOLUENE                                             ug/L
PZ2B-GW-044          N                   10/27/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
PZ2B-GW-044          N                   10/27/2006    TRICHLOROETHENE                                     ug/L
PZ2B-GW-044          N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
PZ2B-GW-044          N                   10/27/2006    VINYL CHLORIDE                                      ug/L
W4-GW-044            N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
W4-GW-044            N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
W4-GW-044            N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
W4-GW-044            N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
W4-GW-044            N                   10/27/2006    1,2-DICHLOROPROPANE                                 ug/L
W4-GW-044            N                   10/27/2006    1,4-DICHLOROBENZENE                  0.72           ug/L
W4-GW-044            N                   10/27/2006    BENZENE                                             ug/L
W4-GW-044            N                   10/27/2006    CHLOROBENZENE                                       ug/L
W4-GW-044            N                   10/27/2006    CHLOROFORM                                          ug/L
W4-GW-044            N                   10/27/2006    CIS-1,2-DICHLOROETHENE               3.1            ug/L
W4-GW-044            N                   10/27/2006    TETRACHLOROETHENE                                   ug/L
W4-GW-044            N                   10/27/2006    TOLUENE                                             ug/L
W4-GW-044            N                   10/27/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
W4-GW-044            N                   10/27/2006    TRICHLOROETHENE                                     ug/L
W4-GW-044            N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
W4-GW-044            N                   10/27/2006    VINYL CHLORIDE                       1              ug/L
W5-GW-044            N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
W5-GW-044            N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
W5-GW-044            N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
W5-GW-044            N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
W5-GW-044            N                   10/27/2006    1,2-DICHLOROPROPANE                                 ug/L
W5-GW-044            N                   10/27/2006    1,4-DICHLOROBENZENE                  0.87           ug/L
W5-GW-044            N                   10/27/2006    BENZENE                                             ug/L
W5-GW-044            N                   10/27/2006    CHLOROBENZENE                                       ug/L
W5-GW-044            N                   10/27/2006    CHLOROFORM                                          ug/L
W5-GW-044            N                   10/27/2006    CIS-1,2-DICHLOROETHENE               3.1            ug/L
W5-GW-044            N                   10/27/2006    TETRACHLOROETHENE                                   ug/L
W5-GW-044            N                   10/27/2006    TOLUENE                                             ug/L
W5-GW-044            N                   10/27/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
W5-GW-044            N                   10/27/2006    TRICHLOROETHENE                                     ug/L
W5-GW-044            N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
W5-GW-044            N                   10/27/2006    VINYL CHLORIDE                                      ug/L
W6-GW-044            N                   10/27/2006    1,1-DICHLOROETHANE                                  ug/L
W6-GW-044            N                   10/27/2006    1,1-DICHLOROETHYLENE                                ug/L
W6-GW-044            N                   10/27/2006    1,2-DICHLOROBENZENE                                 ug/L
W6-GW-044            N                   10/27/2006    1,2-DICHLOROETHANE                                  ug/L
W6-GW-044            N                   10/27/2006    1,2-DICHLOROPROPANE                                 ug/L
W6-GW-044            N                   10/27/2006    1,4-DICHLOROBENZENE                                 ug/L
W6-GW-044            N                   10/27/2006    BENZENE                                             ug/L
W6-GW-044            N                   10/27/2006    CHLOROBENZENE                                       ug/L
W6-GW-044            N                   10/27/2006    CHLOROFORM                                          ug/L
W6-GW-044            N                   10/27/2006    CIS-1,2-DICHLOROETHENE                              ug/L
W6-GW-044            N                   10/27/2006    TETRACHLOROETHENE                    0.54           ug/L
W6-GW-044            N                   10/27/2006    TOLUENE                                             ug/L
W6-GW-044            N                   10/27/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
W6-GW-044            N                   10/27/2006    TRICHLOROETHENE                                     ug/L
W6-GW-044            N                   10/27/2006    TRICHLOROFLUOROMETHANE                              ug/L
W6-GW-044            N                   10/27/2006    VINYL CHLORIDE                                      ug/L
2045N-GW-044         N                   10/30/2006    1,1-DICHLOROETHANE                                  ug/L
2045N-GW-044         N                   10/30/2006    1,1-DICHLOROETHYLENE                                ug/L
2045N-GW-044         N                   10/30/2006    1,2-DICHLOROBENZENE                                 ug/L
2045N-GW-044         N                   10/30/2006    1,2-DICHLOROETHANE                                  ug/L
2045N-GW-044         N                   10/30/2006    1,2-DICHLOROPROPANE                                 ug/L
2045N-GW-044         N                   10/30/2006    1,4-DICHLOROBENZENE                                 ug/L
2045N-GW-044         N                   10/30/2006    BENZENE                                             ug/L
2045N-GW-044         N                   10/30/2006    CHLOROBENZENE                                       ug/L



                                                                                40 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
2045N-GW-044         N                   10/30/2006    CHLOROFORM                                          ug/L
2045N-GW-044         N                   10/30/2006    CIS-1,2-DICHLOROETHENE                              ug/L
2045N-GW-044         N                   10/30/2006    TETRACHLOROETHENE                                   ug/L
2045N-GW-044         N                   10/30/2006    TOLUENE                                             ug/L
2045N-GW-044         N                   10/30/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
2045N-GW-044         N                   10/30/2006    TRICHLOROETHENE                                     ug/L
2045N-GW-044         N                   10/30/2006    TRICHLOROFLUOROMETHANE                              ug/L
2045N-GW-044         N                   10/30/2006    VINYL CHLORIDE                                      ug/L
2429N-GW-044         N                   10/30/2006    1,1-DICHLOROETHANE                                  ug/L
2429N-GW-044         N                   10/30/2006    1,1-DICHLOROETHYLENE                                ug/L
2429N-GW-044         N                   10/30/2006    1,2-DICHLOROBENZENE                                 ug/L
2429N-GW-044         N                   10/30/2006    1,2-DICHLOROETHANE                                  ug/L
2429N-GW-044         N                   10/30/2006    1,2-DICHLOROPROPANE                                 ug/L
2429N-GW-044         N                   10/30/2006    1,4-DICHLOROBENZENE                                 ug/L
2429N-GW-044         N                   10/30/2006    BENZENE                                             ug/L
2429N-GW-044         N                   10/30/2006    CHLOROBENZENE                                       ug/L
2429N-GW-044         N                   10/30/2006    CHLOROFORM                                          ug/L
2429N-GW-044         N                   10/30/2006    CIS-1,2-DICHLOROETHENE                              ug/L
2429N-GW-044         N                   10/30/2006    TETRACHLOROETHENE                    2.2            ug/L
2429N-GW-044         N                   10/30/2006    TOLUENE                                             ug/L
2429N-GW-044         N                   10/30/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
2429N-GW-044         N                   10/30/2006    TRICHLOROETHENE                                     ug/L
2429N-GW-044         N                   10/30/2006    TRICHLOROFLUOROMETHANE               2.3            ug/L
2429N-GW-044         N                   10/30/2006    VINYL CHLORIDE                                      ug/L
CDM10F-GW-044        FD                  10/30/2006    1,1-DICHLOROETHANE                                  ug/L
CDM10F-GW-044        FD                  10/30/2006    1,1-DICHLOROETHYLENE                                ug/L
CDM10F-GW-044        FD                  10/30/2006    1,2-DICHLOROBENZENE                                 ug/L
CDM10F-GW-044        FD                  10/30/2006    1,2-DICHLOROETHANE                                  ug/L
CDM10F-GW-044        FD                  10/30/2006    1,2-DICHLOROPROPANE                                 ug/L
CDM10F-GW-044        FD                  10/30/2006    1,4-DICHLOROBENZENE                                 ug/L
CDM10F-GW-044        FD                  10/30/2006    BENZENE                                             ug/L
CDM10F-GW-044        FD                  10/30/2006    CHLOROBENZENE                                       ug/L
CDM10F-GW-044        FD                  10/30/2006    CHLOROFORM                                          ug/L
CDM10F-GW-044        FD                  10/30/2006    CIS-1,2-DICHLOROETHENE                              ug/L
CDM10F-GW-044        FD                  10/30/2006    TETRACHLOROETHENE                                   ug/L
CDM10F-GW-044        FD                  10/30/2006    TOLUENE                                             ug/L
CDM10F-GW-044        FD                  10/30/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10F-GW-044        FD                  10/30/2006    TRICHLOROETHENE                                     ug/L
CDM10F-GW-044        FD                  10/30/2006    TRICHLOROFLUOROMETHANE                              ug/L
CDM10F-GW-044        FD                  10/30/2006    VINYL CHLORIDE                                      ug/L
EFF-GW-044           N                   10/30/2006    1,1-DICHLOROETHANE                                  ug/L
EFF-GW-044           N                   10/30/2006    1,1-DICHLOROETHYLENE                                ug/L
EFF-GW-044           N                   10/30/2006    1,2-DICHLOROBENZENE                                 ug/L
EFF-GW-044           N                   10/30/2006    1,2-DICHLOROETHANE                                  ug/L
EFF-GW-044           N                   10/30/2006    1,2-DICHLOROPROPANE                                 ug/L
EFF-GW-044           N                   10/30/2006    1,4-DICHLOROBENZENE                                 ug/L
EFF-GW-044           N                   10/30/2006    BENZENE                                             ug/L
EFF-GW-044           N                   10/30/2006    CHLOROBENZENE                                       ug/L
EFF-GW-044           N                   10/30/2006    CHLOROFORM                                          ug/L
EFF-GW-044           N                   10/30/2006    CIS-1,2-DICHLOROETHENE               0.97           ug/L
EFF-GW-044           N                   10/30/2006    TETRACHLOROETHENE                                   ug/L
EFF-GW-044           N                   10/30/2006    TOLUENE                                             ug/L
EFF-GW-044           N                   10/30/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
EFF-GW-044           N                   10/30/2006    TRICHLOROETHENE                                     ug/L
EFF-GW-044           N                   10/30/2006    TRICHLOROFLUOROMETHANE                              ug/L
EFF-GW-044           N                   10/30/2006    VINYL CHLORIDE                                      ug/L
INF-GW-044           N                   10/30/2006    1,1-DICHLOROETHANE                   1.5            ug/L
INF-GW-044           N                   10/30/2006    1,1-DICHLOROETHYLENE                                ug/L
INF-GW-044           N                   10/30/2006    1,2-DICHLOROBENZENE                                 ug/L
INF-GW-044           N                   10/30/2006    1,2-DICHLOROETHANE                                  ug/L
INF-GW-044           N                   10/30/2006    1,2-DICHLOROPROPANE                  0.6            ug/L
INF-GW-044           N                   10/30/2006    1,4-DICHLOROBENZENE                  1.4            ug/L
INF-GW-044           N                   10/30/2006    BENZENE                                             ug/L
INF-GW-044           N                   10/30/2006    CHLOROBENZENE                                       ug/L
INF-GW-044           N                   10/30/2006    CHLOROFORM                                          ug/L
INF-GW-044           N                   10/30/2006    CIS-1,2-DICHLOROETHENE               30             ug/L
INF-GW-044           N                   10/30/2006    TETRACHLOROETHENE                    15             ug/L
INF-GW-044           N                   10/30/2006    TOLUENE                                             ug/L
INF-GW-044           N                   10/30/2006    TRANS-1,2-DICHLOROETHENE             1.7            ug/L
INF-GW-044           N                   10/30/2006    TRICHLOROETHENE                      8.1            ug/L
INF-GW-044           N                   10/30/2006    TRICHLOROFLUOROMETHANE               0.83           ug/L
INF-GW-044           N                   10/30/2006    VINYL CHLORIDE                       2.6            ug/L
PZ4C-GW-044          N                   10/30/2006    1,1-DICHLOROETHANE                                  ug/L
PZ4C-GW-044          N                   10/30/2006    1,1-DICHLOROETHYLENE                                ug/L
PZ4C-GW-044          N                   10/30/2006    1,2-DICHLOROBENZENE                                 ug/L
PZ4C-GW-044          N                   10/30/2006    1,2-DICHLOROETHANE                                  ug/L
PZ4C-GW-044          N                   10/30/2006    1,2-DICHLOROPROPANE                                 ug/L
PZ4C-GW-044          N                   10/30/2006    1,4-DICHLOROBENZENE                                 ug/L
PZ4C-GW-044          N                   10/30/2006    BENZENE                                             ug/L
PZ4C-GW-044          N                   10/30/2006    CHLOROBENZENE                                       ug/L
PZ4C-GW-044          N                   10/30/2006    CHLOROFORM                                          ug/L
PZ4C-GW-044          N                   10/30/2006    CIS-1,2-DICHLOROETHENE                              ug/L
PZ4C-GW-044          N                   10/30/2006    TETRACHLOROETHENE                                   ug/L



                                                                                41 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
PZ4C-GW-044          N                   10/30/2006    TOLUENE                                             ug/L
PZ4C-GW-044          N                   10/30/2006    TRANS-1,2-DICHLOROETHENE                            ug/L
PZ4C-GW-044          N                   10/30/2006    TRICHLOROETHENE                                     ug/L
PZ4C-GW-044          N                   10/30/2006    TRICHLOROFLUOROMETHANE                              ug/L
PZ4C-GW-044          N                   10/30/2006    VINYL CHLORIDE                                      ug/L
CDM10A-GW-045        FD                  1/22/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10A-GW-045        FD                  1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10A-GW-045        FD                  1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10A-GW-045        FD                  1/22/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10A-GW-045        FD                  1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10A-GW-045        FD                  1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10A-GW-045        FD                  1/22/2007     BENZENE                                             ug/L
CDM10A-GW-045        FD                  1/22/2007     CHLOROBENZENE                                       ug/L
CDM10A-GW-045        FD                  1/22/2007     CHLOROFORM                                          ug/L
CDM10A-GW-045        FD                  1/22/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10A-GW-045        FD                  1/22/2007     TETRACHLOROETHENE                    2              ug/L
CDM10A-GW-045        FD                  1/22/2007     TOLUENE                                             ug/L
CDM10A-GW-045        FD                  1/22/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10A-GW-045        FD                  1/22/2007     TRICHLOROETHENE                      1              ug/L
CDM10A-GW-045        FD                  1/22/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10A-GW-045        FD                  1/22/2007     VINYL CHLORIDE                                      ug/L
CDM12A-GW-045        N                   1/22/2007     1,1-DICHLOROETHANE                   4.1            ug/L
CDM12A-GW-045        N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM12A-GW-045        N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM12A-GW-045        N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
CDM12A-GW-045        N                   1/22/2007     1,2-DICHLOROPROPANE                  2.1            ug/L
CDM12A-GW-045        N                   1/22/2007     1,4-DICHLOROBENZENE                  1.8            ug/L
CDM12A-GW-045        N                   1/22/2007     BENZENE                              0.69           ug/L
CDM12A-GW-045        N                   1/22/2007     CHLOROBENZENE                                       ug/L
CDM12A-GW-045        N                   1/22/2007     CHLOROFORM                                          ug/L
CDM12A-GW-045        N                   1/22/2007     CIS-1,2-DICHLOROETHENE               220            ug/L
CDM12A-GW-045        N                   1/22/2007     TETRACHLOROETHENE                    7.5            ug/L
CDM12A-GW-045        N                   1/22/2007     TOLUENE                                             ug/L
CDM12A-GW-045        N                   1/22/2007     TRANS-1,2-DICHLOROETHENE             11             ug/L
CDM12A-GW-045        N                   1/22/2007     TRICHLOROETHENE                      7.7            ug/L
CDM12A-GW-045        N                   1/22/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM12A-GW-045        N                   1/22/2007     VINYL CHLORIDE                       33             ug/L
CDM12B-GW-045        N                   1/22/2007     1,1-DICHLOROETHANE                   1.4            ug/L
CDM12B-GW-045        N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM12B-GW-045        N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM12B-GW-045        N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
CDM12B-GW-045        N                   1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM12B-GW-045        N                   1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM12B-GW-045        N                   1/22/2007     BENZENE                                             ug/L
CDM12B-GW-045        N                   1/22/2007     CHLOROBENZENE                                       ug/L
CDM12B-GW-045        N                   1/22/2007     CHLOROFORM                                          ug/L
CDM12B-GW-045        N                   1/22/2007     CIS-1,2-DICHLOROETHENE               19             ug/L
CDM12B-GW-045        N                   1/22/2007     TETRACHLOROETHENE                    17             ug/L
CDM12B-GW-045        N                   1/22/2007     TOLUENE                                             ug/L
CDM12B-GW-045        N                   1/22/2007     TRANS-1,2-DICHLOROETHENE             1.6            ug/L
CDM12B-GW-045        N                   1/22/2007     TRICHLOROETHENE                      8.6            ug/L
CDM12B-GW-045        N                   1/22/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM12B-GW-045        N                   1/22/2007     VINYL CHLORIDE                       4.6            ug/L
CDM13A-GW-045        N                   1/22/2007     1,1-DICHLOROETHANE                   1.8            ug/L
CDM13A-GW-045        N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13A-GW-045        N                   1/22/2007     1,2-DICHLOROBENZENE                  0.68           ug/L
CDM13A-GW-045        N                   1/22/2007     1,2-DICHLOROETHANE                   0.89           ug/L
CDM13A-GW-045        N                   1/22/2007     1,2-DICHLOROPROPANE                  2.6            ug/L
CDM13A-GW-045        N                   1/22/2007     1,4-DICHLOROBENZENE                  6.3            ug/L
CDM13A-GW-045        N                   1/22/2007     BENZENE                                             ug/L
CDM13A-GW-045        N                   1/22/2007     CHLOROBENZENE                        0.64           ug/L
CDM13A-GW-045        N                   1/22/2007     CHLOROFORM                                          ug/L
CDM13A-GW-045        N                   1/22/2007     CIS-1,2-DICHLOROETHENE               190            ug/L
CDM13A-GW-045        N                   1/22/2007     TETRACHLOROETHENE                    9.2            ug/L
CDM13A-GW-045        N                   1/22/2007     TOLUENE                                             ug/L
CDM13A-GW-045        N                   1/22/2007     TRANS-1,2-DICHLOROETHENE             6.6            ug/L
CDM13A-GW-045        N                   1/22/2007     TRICHLOROETHENE                      21             ug/L
CDM13A-GW-045        N                   1/22/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13A-GW-045        N                   1/22/2007     VINYL CHLORIDE                       2              ug/L
CDM13B2-GW-045       N                   1/22/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13B2-GW-045       N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13B2-GW-045       N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-045       N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13B2-GW-045       N                   1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13B2-GW-045       N                   1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-045       N                   1/22/2007     BENZENE                                             ug/L
CDM13B2-GW-045       N                   1/22/2007     CHLOROBENZENE                                       ug/L
CDM13B2-GW-045       N                   1/22/2007     CHLOROFORM                                          ug/L
CDM13B2-GW-045       N                   1/22/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM13B2-GW-045       N                   1/22/2007     TETRACHLOROETHENE                    2.2            ug/L
CDM13B2-GW-045       N                   1/22/2007     TOLUENE                                             ug/L
CDM13B2-GW-045       N                   1/22/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13B2-GW-045       N                   1/22/2007     TRICHLOROETHENE                      1.1            ug/L



                                                                                42 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM13B2-GW-045       N                   1/22/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13B2-GW-045       N                   1/22/2007     VINYL CHLORIDE                                      ug/L
CDM13B-GW-045        N                   1/22/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13B-GW-045        N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13B-GW-045        N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13B-GW-045        N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13B-GW-045        N                   1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13B-GW-045        N                   1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13B-GW-045        N                   1/22/2007     BENZENE                                             ug/L
CDM13B-GW-045        N                   1/22/2007     CHLOROBENZENE                                       ug/L
CDM13B-GW-045        N                   1/22/2007     CHLOROFORM                                          ug/L
CDM13B-GW-045        N                   1/22/2007     CIS-1,2-DICHLOROETHENE               2.4            ug/L
CDM13B-GW-045        N                   1/22/2007     TETRACHLOROETHENE                    6              ug/L
CDM13B-GW-045        N                   1/22/2007     TOLUENE                                             ug/L
CDM13B-GW-045        N                   1/22/2007     TRANS-1,2-DICHLOROETHENE             0.74           ug/L
CDM13B-GW-045        N                   1/22/2007     TRICHLOROETHENE                      3.2            ug/L
CDM13B-GW-045        N                   1/22/2007     TRICHLOROFLUOROMETHANE               0.92           ug/L
CDM13B-GW-045        N                   1/22/2007     VINYL CHLORIDE                       5.1            ug/L
CDM13C-GW-045        N                   1/22/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13C-GW-045        N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13C-GW-045        N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13C-GW-045        N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13C-GW-045        N                   1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13C-GW-045        N                   1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13C-GW-045        N                   1/22/2007     BENZENE                                             ug/L
CDM13C-GW-045        N                   1/22/2007     CHLOROBENZENE                                       ug/L
CDM13C-GW-045        N                   1/22/2007     CHLOROFORM                                          ug/L
CDM13C-GW-045        N                   1/22/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM13C-GW-045        N                   1/22/2007     TETRACHLOROETHENE                                   ug/L
CDM13C-GW-045        N                   1/22/2007     TOLUENE                                             ug/L
CDM13C-GW-045        N                   1/22/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13C-GW-045        N                   1/22/2007     TRICHLOROETHENE                                     ug/L
CDM13C-GW-045        N                   1/22/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13C-GW-045        N                   1/22/2007     VINYL CHLORIDE                                      ug/L
PZ5B2-GW-045         N                   1/22/2007     1,1-DICHLOROETHANE                                  ug/L
PZ5B2-GW-045         N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5B2-GW-045         N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-045         N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5B2-GW-045         N                   1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5B2-GW-045         N                   1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-045         N                   1/22/2007     BENZENE                                             ug/L
PZ5B2-GW-045         N                   1/22/2007     CHLOROBENZENE                                       ug/L
PZ5B2-GW-045         N                   1/22/2007     CHLOROFORM                                          ug/L
PZ5B2-GW-045         N                   1/22/2007     CIS-1,2-DICHLOROETHENE               1.1            ug/L
PZ5B2-GW-045         N                   1/22/2007     TETRACHLOROETHENE                    11             ug/L
PZ5B2-GW-045         N                   1/22/2007     TOLUENE                                             ug/L
PZ5B2-GW-045         N                   1/22/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5B2-GW-045         N                   1/22/2007     TRICHLOROETHENE                      3.6            ug/L
PZ5B2-GW-045         N                   1/22/2007     TRICHLOROFLUOROMETHANE               0.7            ug/L
PZ5B2-GW-045         N                   1/22/2007     VINYL CHLORIDE                                      ug/L
PZ5B-GW-045          N                   1/22/2007     1,1-DICHLOROETHANE                   5.1            ug/L
PZ5B-GW-045          N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5B-GW-045          N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5B-GW-045          N                   1/22/2007     1,2-DICHLOROETHANE                   0.62           ug/L
PZ5B-GW-045          N                   1/22/2007     1,2-DICHLOROPROPANE                  0.59           ug/L
PZ5B-GW-045          N                   1/22/2007     1,4-DICHLOROBENZENE                  2.6            ug/L
PZ5B-GW-045          N                   1/22/2007     BENZENE                              0.65           ug/L
PZ5B-GW-045          N                   1/22/2007     CHLOROBENZENE                                       ug/L
PZ5B-GW-045          N                   1/22/2007     CHLOROFORM                                          ug/L
PZ5B-GW-045          N                   1/22/2007     CIS-1,2-DICHLOROETHENE               26             ug/L
PZ5B-GW-045          N                   1/22/2007     TETRACHLOROETHENE                    76             ug/L
PZ5B-GW-045          N                   1/22/2007     TOLUENE                                             ug/L
PZ5B-GW-045          N                   1/22/2007     TRANS-1,2-DICHLOROETHENE             3.3            ug/L
PZ5B-GW-045          N                   1/22/2007     TRICHLOROETHENE                      22             ug/L
PZ5B-GW-045          N                   1/22/2007     TRICHLOROFLUOROMETHANE               2.8            ug/L
PZ5B-GW-045          N                   1/22/2007     VINYL CHLORIDE                       20             ug/L
PZ5C-GW-045          N                   1/22/2007     1,1-DICHLOROETHANE                                  ug/L
PZ5C-GW-045          N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5C-GW-045          N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5C-GW-045          N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5C-GW-045          N                   1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5C-GW-045          N                   1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5C-GW-045          N                   1/22/2007     BENZENE                                             ug/L
PZ5C-GW-045          N                   1/22/2007     CHLOROBENZENE                                       ug/L
PZ5C-GW-045          N                   1/22/2007     CHLOROFORM                                          ug/L
PZ5C-GW-045          N                   1/22/2007     CIS-1,2-DICHLOROETHENE                              ug/L
PZ5C-GW-045          N                   1/22/2007     TETRACHLOROETHENE                    10             ug/L
PZ5C-GW-045          N                   1/22/2007     TOLUENE                                             ug/L
PZ5C-GW-045          N                   1/22/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5C-GW-045          N                   1/22/2007     TRICHLOROETHENE                      2.6            ug/L
PZ5C-GW-045          N                   1/22/2007     TRICHLOROFLUOROMETHANE               0.64           ug/L
PZ5C-GW-045          N                   1/22/2007     VINYL CHLORIDE                                      ug/L
PZ5C-GW-045Q         FD                  1/22/2007     1,1-DICHLOROETHANE                                  ug/L



                                                                                43 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
PZ5C-GW-045Q         FD                  1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5C-GW-045Q         FD                  1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5C-GW-045Q         FD                  1/22/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5C-GW-045Q         FD                  1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5C-GW-045Q         FD                  1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5C-GW-045Q         FD                  1/22/2007     BENZENE                                             ug/L
PZ5C-GW-045Q         FD                  1/22/2007     CHLOROBENZENE                                       ug/L
PZ5C-GW-045Q         FD                  1/22/2007     CHLOROFORM                                          ug/L
PZ5C-GW-045Q         FD                  1/22/2007     CIS-1,2-DICHLOROETHENE                              ug/L
PZ5C-GW-045Q         FD                  1/22/2007     TETRACHLOROETHENE                    10             ug/L
PZ5C-GW-045Q         FD                  1/22/2007     TOLUENE                                             ug/L
PZ5C-GW-045Q         FD                  1/22/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5C-GW-045Q         FD                  1/22/2007     TRICHLOROETHENE                      2.7            ug/L
PZ5C-GW-045Q         FD                  1/22/2007     TRICHLOROFLUOROMETHANE               0.64           ug/L
PZ5C-GW-045Q         FD                  1/22/2007     VINYL CHLORIDE                                      ug/L
W6-GW-045            N                   1/22/2007     1,1-DICHLOROETHANE                                  ug/L
W6-GW-045            N                   1/22/2007     1,1-DICHLOROETHYLENE                                ug/L
W6-GW-045            N                   1/22/2007     1,2-DICHLOROBENZENE                                 ug/L
W6-GW-045            N                   1/22/2007     1,2-DICHLOROETHANE                                  ug/L
W6-GW-045            N                   1/22/2007     1,2-DICHLOROPROPANE                                 ug/L
W6-GW-045            N                   1/22/2007     1,4-DICHLOROBENZENE                                 ug/L
W6-GW-045            N                   1/22/2007     BENZENE                                             ug/L
W6-GW-045            N                   1/22/2007     CHLOROBENZENE                                       ug/L
W6-GW-045            N                   1/22/2007     CHLOROFORM                                          ug/L
W6-GW-045            N                   1/22/2007     CIS-1,2-DICHLOROETHENE                              ug/L
W6-GW-045            N                   1/22/2007     TETRACHLOROETHENE                                   ug/L
W6-GW-045            N                   1/22/2007     TOLUENE                                             ug/L
W6-GW-045            N                   1/22/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
W6-GW-045            N                   1/22/2007     TRICHLOROETHENE                                     ug/L
W6-GW-045            N                   1/22/2007     TRICHLOROFLUOROMETHANE                              ug/L
W6-GW-045            N                   1/22/2007     VINYL CHLORIDE                                      ug/L
CDM10B-GW-045        FD                  1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10B-GW-045        FD                  1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10B-GW-045        FD                  1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10B-GW-045        FD                  1/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10B-GW-045        FD                  1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10B-GW-045        FD                  1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10B-GW-045        FD                  1/23/2007     BENZENE                                             ug/L
CDM10B-GW-045        FD                  1/23/2007     CHLOROBENZENE                                       ug/L
CDM10B-GW-045        FD                  1/23/2007     CHLOROFORM                                          ug/L
CDM10B-GW-045        FD                  1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10B-GW-045        FD                  1/23/2007     TETRACHLOROETHENE                                   ug/L
CDM10B-GW-045        FD                  1/23/2007     TOLUENE                                             ug/L
CDM10B-GW-045        FD                  1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10B-GW-045        FD                  1/23/2007     TRICHLOROETHENE                                     ug/L
CDM10B-GW-045        FD                  1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10B-GW-045        FD                  1/23/2007     VINYL CHLORIDE                                      ug/L
CDM15A-GW-045        N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15A-GW-045        N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15A-GW-045        N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15A-GW-045        N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15A-GW-045        N                   1/23/2007     1,2-DICHLOROPROPANE                  0.92           ug/L
CDM15A-GW-045        N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15A-GW-045        N                   1/23/2007     BENZENE                                             ug/L
CDM15A-GW-045        N                   1/23/2007     CHLOROBENZENE                                       ug/L
CDM15A-GW-045        N                   1/23/2007     CHLOROFORM                                          ug/L
CDM15A-GW-045        N                   1/23/2007     CIS-1,2-DICHLOROETHENE               34             ug/L
CDM15A-GW-045        N                   1/23/2007     TETRACHLOROETHENE                    4.6            ug/L
CDM15A-GW-045        N                   1/23/2007     TOLUENE                                             ug/L
CDM15A-GW-045        N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15A-GW-045        N                   1/23/2007     TRICHLOROETHENE                      1.5            ug/L
CDM15A-GW-045        N                   1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM15A-GW-045        N                   1/23/2007     VINYL CHLORIDE                                      ug/L
CDM15B2-GW-045       N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15B2-GW-045       N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15B2-GW-045       N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-045       N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15B2-GW-045       N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM15B2-GW-045       N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-045       N                   1/23/2007     BENZENE                                             ug/L
CDM15B2-GW-045       N                   1/23/2007     CHLOROBENZENE                                       ug/L
CDM15B2-GW-045       N                   1/23/2007     CHLOROFORM                                          ug/L
CDM15B2-GW-045       N                   1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM15B2-GW-045       N                   1/23/2007     TETRACHLOROETHENE                    7.1            ug/L
CDM15B2-GW-045       N                   1/23/2007     TOLUENE                                             ug/L
CDM15B2-GW-045       N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B2-GW-045       N                   1/23/2007     TRICHLOROETHENE                      0.89           ug/L
CDM15B2-GW-045       N                   1/23/2007     TRICHLOROFLUOROMETHANE               1.1            ug/L
CDM15B2-GW-045       N                   1/23/2007     VINYL CHLORIDE                                      ug/L
CDM15B-GW-045        N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15B-GW-045        N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15B-GW-045        N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15B-GW-045        N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L



                                                                                44 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM15B-GW-045        N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM15B-GW-045        N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15B-GW-045        N                   1/23/2007     BENZENE                                             ug/L
CDM15B-GW-045        N                   1/23/2007     CHLOROBENZENE                                       ug/L
CDM15B-GW-045        N                   1/23/2007     CHLOROFORM                                          ug/L
CDM15B-GW-045        N                   1/23/2007     CIS-1,2-DICHLOROETHENE               2.4            ug/L
CDM15B-GW-045        N                   1/23/2007     TETRACHLOROETHENE                    26             ug/L
CDM15B-GW-045        N                   1/23/2007     TOLUENE                                             ug/L
CDM15B-GW-045        N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B-GW-045        N                   1/23/2007     TRICHLOROETHENE                      3.3            ug/L
CDM15B-GW-045        N                   1/23/2007     TRICHLOROFLUOROMETHANE               3.9            ug/L
CDM15B-GW-045        N                   1/23/2007     VINYL CHLORIDE                                      ug/L
CDM16A-GW-045        N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM16A-GW-045        N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM16A-GW-045        N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM16A-GW-045        N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM16A-GW-045        N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM16A-GW-045        N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM16A-GW-045        N                   1/23/2007     BENZENE                                             ug/L
CDM16A-GW-045        N                   1/23/2007     CHLOROBENZENE                                       ug/L
CDM16A-GW-045        N                   1/23/2007     CHLOROFORM                                          ug/L
CDM16A-GW-045        N                   1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16A-GW-045        N                   1/23/2007     TETRACHLOROETHENE                                   ug/L
CDM16A-GW-045        N                   1/23/2007     TOLUENE                                             ug/L
CDM16A-GW-045        N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16A-GW-045        N                   1/23/2007     TRICHLOROETHENE                                     ug/L
CDM16A-GW-045        N                   1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM16A-GW-045        N                   1/23/2007     VINYL CHLORIDE                                      ug/L
CDM16B-GW-045        N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM16B-GW-045        N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM16B-GW-045        N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM16B-GW-045        N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM16B-GW-045        N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM16B-GW-045        N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM16B-GW-045        N                   1/23/2007     BENZENE                                             ug/L
CDM16B-GW-045        N                   1/23/2007     CHLOROBENZENE                                       ug/L
CDM16B-GW-045        N                   1/23/2007     CHLOROFORM                                          ug/L
CDM16B-GW-045        N                   1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16B-GW-045        N                   1/23/2007     TETRACHLOROETHENE                    1.7            ug/L
CDM16B-GW-045        N                   1/23/2007     TOLUENE                                             ug/L
CDM16B-GW-045        N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16B-GW-045        N                   1/23/2007     TRICHLOROETHENE                                     ug/L
CDM16B-GW-045        N                   1/23/2007     TRICHLOROFLUOROMETHANE               2.6            ug/L
CDM16B-GW-045        N                   1/23/2007     VINYL CHLORIDE                                      ug/L
CDM16C-GW-045        N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM16C-GW-045        N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM16C-GW-045        N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM16C-GW-045        N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM16C-GW-045        N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM16C-GW-045        N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM16C-GW-045        N                   1/23/2007     BENZENE                                             ug/L
CDM16C-GW-045        N                   1/23/2007     CHLOROBENZENE                                       ug/L
CDM16C-GW-045        N                   1/23/2007     CHLOROFORM                                          ug/L
CDM16C-GW-045        N                   1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16C-GW-045        N                   1/23/2007     TETRACHLOROETHENE                                   ug/L
CDM16C-GW-045        N                   1/23/2007     TOLUENE                                             ug/L
CDM16C-GW-045        N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16C-GW-045        N                   1/23/2007     TRICHLOROETHENE                                     ug/L
CDM16C-GW-045        N                   1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM16C-GW-045        N                   1/23/2007     VINYL CHLORIDE                                      ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     BENZENE                                             ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     CHLOROBENZENE                                       ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     CHLOROFORM                                          ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     TETRACHLOROETHENE                                   ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     TOLUENE                                             ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     TRICHLOROETHENE                                     ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM16C-GW-045 Q      FD                  1/23/2007     VINYL CHLORIDE                                      ug/L
DW2B-GW-045          N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
DW2B-GW-045          N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
DW2B-GW-045          N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
DW2B-GW-045          N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
DW2B-GW-045          N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
DW2B-GW-045          N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
DW2B-GW-045          N                   1/23/2007     BENZENE                                             ug/L



                                                                                45 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
DW2B-GW-045          N                   1/23/2007     CHLOROBENZENE                                       ug/L
DW2B-GW-045          N                   1/23/2007     CHLOROFORM                                          ug/L
DW2B-GW-045          N                   1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
DW2B-GW-045          N                   1/23/2007     TETRACHLOROETHENE                    1.8            ug/L
DW2B-GW-045          N                   1/23/2007     TOLUENE                                             ug/L
DW2B-GW-045          N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
DW2B-GW-045          N                   1/23/2007     TRICHLOROETHENE                                     ug/L
DW2B-GW-045          N                   1/23/2007     TRICHLOROFLUOROMETHANE               0.62           ug/L
DW2B-GW-045          N                   1/23/2007     VINYL CHLORIDE                                      ug/L
PZ2A-GW-045          N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
PZ2A-GW-045          N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ2A-GW-045          N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ2A-GW-045          N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
PZ2A-GW-045          N                   1/23/2007     1,2-DICHLOROPROPANE                  0.78           ug/L
PZ2A-GW-045          N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ2A-GW-045          N                   1/23/2007     BENZENE                                             ug/L
PZ2A-GW-045          N                   1/23/2007     CHLOROBENZENE                                       ug/L
PZ2A-GW-045          N                   1/23/2007     CHLOROFORM                                          ug/L
PZ2A-GW-045          N                   1/23/2007     CIS-1,2-DICHLOROETHENE               18             ug/L
PZ2A-GW-045          N                   1/23/2007     TETRACHLOROETHENE                    3.4            ug/L
PZ2A-GW-045          N                   1/23/2007     TOLUENE                                             ug/L
PZ2A-GW-045          N                   1/23/2007     TRANS-1,2-DICHLOROETHENE             0.54           ug/L
PZ2A-GW-045          N                   1/23/2007     TRICHLOROETHENE                      1.7            ug/L
PZ2A-GW-045          N                   1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
PZ2A-GW-045          N                   1/23/2007     VINYL CHLORIDE                                      ug/L
PZ2B-GW-045          N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
PZ2B-GW-045          N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ2B-GW-045          N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ2B-GW-045          N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
PZ2B-GW-045          N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ2B-GW-045          N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ2B-GW-045          N                   1/23/2007     BENZENE                                             ug/L
PZ2B-GW-045          N                   1/23/2007     CHLOROBENZENE                                       ug/L
PZ2B-GW-045          N                   1/23/2007     CHLOROFORM                                          ug/L
PZ2B-GW-045          N                   1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
PZ2B-GW-045          N                   1/23/2007     TETRACHLOROETHENE                                   ug/L
PZ2B-GW-045          N                   1/23/2007     TOLUENE                                             ug/L
PZ2B-GW-045          N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ2B-GW-045          N                   1/23/2007     TRICHLOROETHENE                                     ug/L
PZ2B-GW-045          N                   1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
PZ2B-GW-045          N                   1/23/2007     VINYL CHLORIDE                                      ug/L
PZ4B-GW-045          N                   1/23/2007     1,1-DICHLOROETHANE                                  ug/L
PZ4B-GW-045          N                   1/23/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ4B-GW-045          N                   1/23/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ4B-GW-045          N                   1/23/2007     1,2-DICHLOROETHANE                                  ug/L
PZ4B-GW-045          N                   1/23/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ4B-GW-045          N                   1/23/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ4B-GW-045          N                   1/23/2007     BENZENE                                             ug/L
PZ4B-GW-045          N                   1/23/2007     CHLOROBENZENE                                       ug/L
PZ4B-GW-045          N                   1/23/2007     CHLOROFORM                                          ug/L
PZ4B-GW-045          N                   1/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
PZ4B-GW-045          N                   1/23/2007     TETRACHLOROETHENE                    1              ug/L
PZ4B-GW-045          N                   1/23/2007     TOLUENE                                             ug/L
PZ4B-GW-045          N                   1/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ4B-GW-045          N                   1/23/2007     TRICHLOROETHENE                                     ug/L
PZ4B-GW-045          N                   1/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
PZ4B-GW-045          N                   1/23/2007     VINYL CHLORIDE                                      ug/L
CDM 8C-GW-045        N                   1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM 8C-GW-045        N                   1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM 8C-GW-045        N                   1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM 8C-GW-045        N                   1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM 8C-GW-045        N                   1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM 8C-GW-045        N                   1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM 8C-GW-045        N                   1/24/2007     BENZENE                                             ug/L
CDM 8C-GW-045        N                   1/24/2007     CHLOROBENZENE                                       ug/L
CDM 8C-GW-045        N                   1/24/2007     CHLOROFORM                                          ug/L
CDM 8C-GW-045        N                   1/24/2007     CIS-1,2-DICHLOROETHENE               1.9            ug/L
CDM 8C-GW-045        N                   1/24/2007     TETRACHLOROETHENE                    3.8            ug/L
CDM 8C-GW-045        N                   1/24/2007     TOLUENE                                             ug/L
CDM 8C-GW-045        N                   1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM 8C-GW-045        N                   1/24/2007     TRICHLOROETHENE                      1.2            ug/L
CDM 8C-GW-045        N                   1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM 8C-GW-045        N                   1/24/2007     VINYL CHLORIDE                                      ug/L
CDM10C-GW-045        FD                  1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10C-GW-045        FD                  1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10C-GW-045        FD                  1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10C-GW-045        FD                  1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10C-GW-045        FD                  1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10C-GW-045        FD                  1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10C-GW-045        FD                  1/24/2007     BENZENE                                             ug/L
CDM10C-GW-045        FD                  1/24/2007     CHLOROBENZENE                                       ug/L
CDM10C-GW-045        FD                  1/24/2007     CHLOROFORM                                          ug/L
CDM10C-GW-045        FD                  1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L



                                                                                46 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM10C-GW-045        FD                  1/24/2007     TETRACHLOROETHENE                    0.55           ug/L
CDM10C-GW-045        FD                  1/24/2007     TOLUENE                                             ug/L
CDM10C-GW-045        FD                  1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10C-GW-045        FD                  1/24/2007     TRICHLOROETHENE                                     ug/L
CDM10C-GW-045        FD                  1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10C-GW-045        FD                  1/24/2007     VINYL CHLORIDE                                      ug/L
CDM18A-GW-045        N                   1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM18A-GW-045        N                   1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM18A-GW-045        N                   1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM18A-GW-045        N                   1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM18A-GW-045        N                   1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM18A-GW-045        N                   1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM18A-GW-045        N                   1/24/2007     BENZENE                              3              ug/L
CDM18A-GW-045        N                   1/24/2007     CHLOROBENZENE                                       ug/L
CDM18A-GW-045        N                   1/24/2007     CHLOROFORM                                          ug/L
CDM18A-GW-045        N                   1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18A-GW-045        N                   1/24/2007     TETRACHLOROETHENE                                   ug/L
CDM18A-GW-045        N                   1/24/2007     TOLUENE                                             ug/L
CDM18A-GW-045        N                   1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18A-GW-045        N                   1/24/2007     TRICHLOROETHENE                                     ug/L
CDM18A-GW-045        N                   1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM18A-GW-045        N                   1/24/2007     VINYL CHLORIDE                                      ug/L
CDM18B-GW-045        N                   1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM18B-GW-045        N                   1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM18B-GW-045        N                   1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM18B-GW-045        N                   1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM18B-GW-045        N                   1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM18B-GW-045        N                   1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM18B-GW-045        N                   1/24/2007     BENZENE                                             ug/L
CDM18B-GW-045        N                   1/24/2007     CHLOROBENZENE                                       ug/L
CDM18B-GW-045        N                   1/24/2007     CHLOROFORM                                          ug/L
CDM18B-GW-045        N                   1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18B-GW-045        N                   1/24/2007     TETRACHLOROETHENE                                   ug/L
CDM18B-GW-045        N                   1/24/2007     TOLUENE                                             ug/L
CDM18B-GW-045        N                   1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18B-GW-045        N                   1/24/2007     TRICHLOROETHENE                                     ug/L
CDM18B-GW-045        N                   1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM18B-GW-045        N                   1/24/2007     VINYL CHLORIDE                                      ug/L
CDM18C-GW-045        N                   1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM18C-GW-045        N                   1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM18C-GW-045        N                   1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM18C-GW-045        N                   1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM18C-GW-045        N                   1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM18C-GW-045        N                   1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM18C-GW-045        N                   1/24/2007     BENZENE                                             ug/L
CDM18C-GW-045        N                   1/24/2007     CHLOROBENZENE                                       ug/L
CDM18C-GW-045        N                   1/24/2007     CHLOROFORM                                          ug/L
CDM18C-GW-045        N                   1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18C-GW-045        N                   1/24/2007     TETRACHLOROETHENE                    0.55           ug/L
CDM18C-GW-045        N                   1/24/2007     TOLUENE                                             ug/L
CDM18C-GW-045        N                   1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18C-GW-045        N                   1/24/2007     TRICHLOROETHENE                                     ug/L
CDM18C-GW-045        N                   1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM18C-GW-045        N                   1/24/2007     VINYL CHLORIDE                                      ug/L
CDM4A-GW-045         N                   1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM4A-GW-045         N                   1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM4A-GW-045         N                   1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM4A-GW-045         N                   1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM4A-GW-045         N                   1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM4A-GW-045         N                   1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM4A-GW-045         N                   1/24/2007     BENZENE                                             ug/L
CDM4A-GW-045         N                   1/24/2007     CHLOROBENZENE                                       ug/L
CDM4A-GW-045         N                   1/24/2007     CHLOROFORM                                          ug/L
CDM4A-GW-045         N                   1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM4A-GW-045         N                   1/24/2007     TETRACHLOROETHENE                                   ug/L
CDM4A-GW-045         N                   1/24/2007     TOLUENE                                             ug/L
CDM4A-GW-045         N                   1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4A-GW-045         N                   1/24/2007     TRICHLOROETHENE                                     ug/L
CDM4A-GW-045         N                   1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM4A-GW-045         N                   1/24/2007     VINYL CHLORIDE                                      ug/L
CDM4B-GW-045         N                   1/24/2007     1,1-DICHLOROETHANE                   2.4            ug/L
CDM4B-GW-045         N                   1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM4B-GW-045         N                   1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM4B-GW-045         N                   1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM4B-GW-045         N                   1/24/2007     1,2-DICHLOROPROPANE                  0.53           ug/L
CDM4B-GW-045         N                   1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM4B-GW-045         N                   1/24/2007     BENZENE                                             ug/L
CDM4B-GW-045         N                   1/24/2007     CHLOROBENZENE                                       ug/L
CDM4B-GW-045         N                   1/24/2007     CHLOROFORM                                          ug/L
CDM4B-GW-045         N                   1/24/2007     CIS-1,2-DICHLOROETHENE               12             ug/L
CDM4B-GW-045         N                   1/24/2007     TETRACHLOROETHENE                    48             ug/L
CDM4B-GW-045         N                   1/24/2007     TOLUENE                                             ug/L
CDM4B-GW-045         N                   1/24/2007     TRANS-1,2-DICHLOROETHENE             2.4            ug/L



                                                                                47 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM4B-GW-045             N               1/24/2007     TRICHLOROETHENE                      26             ug/L
CDM4B-GW-045             N               1/24/2007     TRICHLOROFLUOROMETHANE               2.8            ug/L
CDM4B-GW-045             N               1/24/2007     VINYL CHLORIDE                       0.59           ug/L
CDM5A-GW-045             N               1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM5A-GW-045             N               1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM5A-GW-045             N               1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM5A-GW-045             N               1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM5A-GW-045             N               1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM5A-GW-045             N               1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM5A-GW-045             N               1/24/2007     BENZENE                                             ug/L
CDM5A-GW-045             N               1/24/2007     CHLOROBENZENE                                       ug/L
CDM5A-GW-045             N               1/24/2007     CHLOROFORM                                          ug/L
CDM5A-GW-045             N               1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM5A-GW-045             N               1/24/2007     TETRACHLOROETHENE                                   ug/L
CDM5A-GW-045             N               1/24/2007     TOLUENE                                             ug/L
CDM5A-GW-045             N               1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5A-GW-045             N               1/24/2007     TRICHLOROETHENE                                     ug/L
CDM5A-GW-045             N               1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM5A-GW-045             N               1/24/2007     VINYL CHLORIDE                                      ug/L
CDM5B-GW-045             N               1/24/2007     1,1-DICHLOROETHANE                   2.3            ug/L
CDM5B-GW-045             N               1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM5B-GW-045             N               1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM5B-GW-045             N               1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM5B-GW-045             N               1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM5B-GW-045             N               1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM5B-GW-045             N               1/24/2007     BENZENE                                             ug/L
CDM5B-GW-045             N               1/24/2007     CHLOROBENZENE                                       ug/L
CDM5B-GW-045             N               1/24/2007     CHLOROFORM                                          ug/L
CDM5B-GW-045             N               1/24/2007     CIS-1,2-DICHLOROETHENE               17             ug/L
CDM5B-GW-045             N               1/24/2007     TETRACHLOROETHENE                    25             ug/L
CDM5B-GW-045             N               1/24/2007     TOLUENE                                             ug/L
CDM5B-GW-045             N               1/24/2007     TRANS-1,2-DICHLOROETHENE             0.91           ug/L
CDM5B-GW-045             N               1/24/2007     TRICHLOROETHENE                      8.4            ug/L
CDM5B-GW-045             N               1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM5B-GW-045             N               1/24/2007     VINYL CHLORIDE                                      ug/L
CDM8A-GW-045             N               1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM8A-GW-045             N               1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM8A-GW-045             N               1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM8A-GW-045             N               1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM8A-GW-045             N               1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM8A-GW-045             N               1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM8A-GW-045             N               1/24/2007     BENZENE                                             ug/L
CDM8A-GW-045             N               1/24/2007     CHLOROBENZENE                                       ug/L
CDM8A-GW-045             N               1/24/2007     CHLOROFORM                                          ug/L
CDM8A-GW-045             N               1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM8A-GW-045             N               1/24/2007     TETRACHLOROETHENE                                   ug/L
CDM8A-GW-045             N               1/24/2007     TOLUENE                                             ug/L
CDM8A-GW-045             N               1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8A-GW-045             N               1/24/2007     TRICHLOROETHENE                                     ug/L
CDM8A-GW-045             N               1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM8A-GW-045             N               1/24/2007     VINYL CHLORIDE                                      ug/L
CDM8B-GW-045             N               1/24/2007     1,1-DICHLOROETHANE                                  ug/L
CDM8B-GW-045             N               1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM8B-GW-045             N               1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM8B-GW-045             N               1/24/2007     1,2-DICHLOROETHANE                                  ug/L
CDM8B-GW-045             N               1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM8B-GW-045             N               1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM8B-GW-045             N               1/24/2007     BENZENE                                             ug/L
CDM8B-GW-045             N               1/24/2007     CHLOROBENZENE                                       ug/L
CDM8B-GW-045             N               1/24/2007     CHLOROFORM                                          ug/L
CDM8B-GW-045             N               1/24/2007     CIS-1,2-DICHLOROETHENE               1.1            ug/L
CDM8B-GW-045             N               1/24/2007     TETRACHLOROETHENE                    1.1            ug/L
CDM8B-GW-045             N               1/24/2007     TOLUENE                                             ug/L
CDM8B-GW-045             N               1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8B-GW-045             N               1/24/2007     TRICHLOROETHENE                                     ug/L
CDM8B-GW-045             N               1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM8B-GW-045             N               1/24/2007     VINYL CHLORIDE                                      ug/L
Travel Blank 27-DEC-06   N               1/24/2007     1,1-DICHLOROETHANE                                  ug/L
Travel Blank 27-DEC-06   N               1/24/2007     1,1-DICHLOROETHYLENE                                ug/L
Travel Blank 27-DEC-06   N               1/24/2007     1,2-DICHLOROBENZENE                                 ug/L
Travel Blank 27-DEC-06   N               1/24/2007     1,2-DICHLOROETHANE                                  ug/L
Travel Blank 27-DEC-06   N               1/24/2007     1,2-DICHLOROPROPANE                                 ug/L
Travel Blank 27-DEC-06   N               1/24/2007     1,4-DICHLOROBENZENE                                 ug/L
Travel Blank 27-DEC-06   N               1/24/2007     BENZENE                                             ug/L
Travel Blank 27-DEC-06   N               1/24/2007     CHLOROBENZENE                                       ug/L
Travel Blank 27-DEC-06   N               1/24/2007     CHLOROFORM                                          ug/L
Travel Blank 27-DEC-06   N               1/24/2007     CIS-1,2-DICHLOROETHENE                              ug/L
Travel Blank 27-DEC-06   N               1/24/2007     TETRACHLOROETHENE                                   ug/L
Travel Blank 27-DEC-06   N               1/24/2007     TOLUENE                                             ug/L
Travel Blank 27-DEC-06   N               1/24/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
Travel Blank 27-DEC-06   N               1/24/2007     TRICHLOROETHENE                                     ug/L
Travel Blank 27-DEC-06   N               1/24/2007     TRICHLOROFLUOROMETHANE                              ug/L
Travel Blank 27-DEC-06   N               1/24/2007     VINYL CHLORIDE                                      ug/L



                                                                                48 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM10D-GW-045        FD                  1/25/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10D-GW-045        FD                  1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10D-GW-045        FD                  1/25/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10D-GW-045        FD                  1/25/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10D-GW-045        FD                  1/25/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10D-GW-045        FD                  1/25/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10D-GW-045        FD                  1/25/2007     BENZENE                                             ug/L
CDM10D-GW-045        FD                  1/25/2007     CHLOROBENZENE                                       ug/L
CDM10D-GW-045        FD                  1/25/2007     CHLOROFORM                                          ug/L
CDM10D-GW-045        FD                  1/25/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10D-GW-045        FD                  1/25/2007     TETRACHLOROETHENE                                   ug/L
CDM10D-GW-045        FD                  1/25/2007     TOLUENE                                             ug/L
CDM10D-GW-045        FD                  1/25/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10D-GW-045        FD                  1/25/2007     TRICHLOROETHENE                                     ug/L
CDM10D-GW-045        FD                  1/25/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10D-GW-045        FD                  1/25/2007     VINYL CHLORIDE                                      ug/L
CDM17A-GW-045        N                   1/25/2007     1,1-DICHLOROETHANE                                  ug/L
CDM17A-GW-045        N                   1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM17A-GW-045        N                   1/25/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM17A-GW-045        N                   1/25/2007     1,2-DICHLOROETHANE                                  ug/L
CDM17A-GW-045        N                   1/25/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM17A-GW-045        N                   1/25/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM17A-GW-045        N                   1/25/2007     BENZENE                                             ug/L
CDM17A-GW-045        N                   1/25/2007     CHLOROBENZENE                                       ug/L
CDM17A-GW-045        N                   1/25/2007     CHLOROFORM                                          ug/L
CDM17A-GW-045        N                   1/25/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17A-GW-045        N                   1/25/2007     TETRACHLOROETHENE                                   ug/L
CDM17A-GW-045        N                   1/25/2007     TOLUENE                                             ug/L
CDM17A-GW-045        N                   1/25/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17A-GW-045        N                   1/25/2007     TRICHLOROETHENE                                     ug/L
CDM17A-GW-045        N                   1/25/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM17A-GW-045        N                   1/25/2007     VINYL CHLORIDE                                      ug/L
CDM17B-GW-045        N                   1/25/2007     1,1-DICHLOROETHANE                                  ug/L
CDM17B-GW-045        N                   1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM17B-GW-045        N                   1/25/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM17B-GW-045        N                   1/25/2007     1,2-DICHLOROETHANE                                  ug/L
CDM17B-GW-045        N                   1/25/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM17B-GW-045        N                   1/25/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM17B-GW-045        N                   1/25/2007     BENZENE                                             ug/L
CDM17B-GW-045        N                   1/25/2007     CHLOROBENZENE                                       ug/L
CDM17B-GW-045        N                   1/25/2007     CHLOROFORM                                          ug/L
CDM17B-GW-045        N                   1/25/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17B-GW-045        N                   1/25/2007     TETRACHLOROETHENE                    0.51           ug/L
CDM17B-GW-045        N                   1/25/2007     TOLUENE                                             ug/L
CDM17B-GW-045        N                   1/25/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17B-GW-045        N                   1/25/2007     TRICHLOROETHENE                                     ug/L
CDM17B-GW-045        N                   1/25/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM17B-GW-045        N                   1/25/2007     VINYL CHLORIDE                                      ug/L
CDM17C-GW-045        N                   1/25/2007     1,1-DICHLOROETHANE                                  ug/L
CDM17C-GW-045        N                   1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM17C-GW-045        N                   1/25/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM17C-GW-045        N                   1/25/2007     1,2-DICHLOROETHANE                                  ug/L
CDM17C-GW-045        N                   1/25/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM17C-GW-045        N                   1/25/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM17C-GW-045        N                   1/25/2007     BENZENE                                             ug/L
CDM17C-GW-045        N                   1/25/2007     CHLOROBENZENE                                       ug/L
CDM17C-GW-045        N                   1/25/2007     CHLOROFORM                                          ug/L
CDM17C-GW-045        N                   1/25/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17C-GW-045        N                   1/25/2007     TETRACHLOROETHENE                    1.2            ug/L
CDM17C-GW-045        N                   1/25/2007     TOLUENE                                             ug/L
CDM17C-GW-045        N                   1/25/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17C-GW-045        N                   1/25/2007     TRICHLOROETHENE                                     ug/L
CDM17C-GW-045        N                   1/25/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM17C-GW-045        N                   1/25/2007     VINYL CHLORIDE                                      ug/L
EFF-GW-045           N                   1/25/2007     1,1-DICHLOROETHANE                                  ug/L
EFF-GW-045           N                   1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
EFF-GW-045           N                   1/25/2007     1,2-DICHLOROBENZENE                                 ug/L
EFF-GW-045           N                   1/25/2007     1,2-DICHLOROETHANE                                  ug/L
EFF-GW-045           N                   1/25/2007     1,2-DICHLOROPROPANE                                 ug/L
EFF-GW-045           N                   1/25/2007     1,4-DICHLOROBENZENE                                 ug/L
EFF-GW-045           N                   1/25/2007     BENZENE                                             ug/L
EFF-GW-045           N                   1/25/2007     CHLOROBENZENE                                       ug/L
EFF-GW-045           N                   1/25/2007     CHLOROFORM                                          ug/L
EFF-GW-045           N                   1/25/2007     CIS-1,2-DICHLOROETHENE                              ug/L
EFF-GW-045           N                   1/25/2007     TETRACHLOROETHENE                                   ug/L
EFF-GW-045           N                   1/25/2007     TOLUENE                                             ug/L
EFF-GW-045           N                   1/25/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
EFF-GW-045           N                   1/25/2007     TRICHLOROETHENE                                     ug/L
EFF-GW-045           N                   1/25/2007     TRICHLOROFLUOROMETHANE                              ug/L
EFF-GW-045           N                   1/25/2007     VINYL CHLORIDE                                      ug/L
INF-GW-045           N                   1/25/2007     1,1-DICHLOROETHANE                   1.4            ug/L
INF-GW-045           N                   1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
INF-GW-045           N                   1/25/2007     1,2-DICHLOROBENZENE                                 ug/L



                                                                                49 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
INF-GW-045           N                   1/25/2007     1,2-DICHLOROETHANE                                  ug/L
INF-GW-045           N                   1/25/2007     1,2-DICHLOROPROPANE                  0.6            ug/L
INF-GW-045           N                   1/25/2007     1,4-DICHLOROBENZENE                  1.4            ug/L
INF-GW-045           N                   1/25/2007     BENZENE                                             ug/L
INF-GW-045           N                   1/25/2007     CHLOROBENZENE                                       ug/L
INF-GW-045           N                   1/25/2007     CHLOROFORM                                          ug/L
INF-GW-045           N                   1/25/2007     CIS-1,2-DICHLOROETHENE               30             ug/L
INF-GW-045           N                   1/25/2007     TETRACHLOROETHENE                    14             ug/L
INF-GW-045           N                   1/25/2007     TOLUENE                                             ug/L
INF-GW-045           N                   1/25/2007     TRANS-1,2-DICHLOROETHENE             1.5            ug/L
INF-GW-045           N                   1/25/2007     TRICHLOROETHENE                      8.3            ug/L
INF-GW-045           N                   1/25/2007     TRICHLOROFLUOROMETHANE               0.55           ug/L
INF-GW-045           N                   1/25/2007     VINYL CHLORIDE                       2              ug/L
PW5A-GW-045          N                   1/25/2007     1,1-DICHLOROETHANE                                  ug/L
PW5A-GW-045          N                   1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
PW5A-GW-045          N                   1/25/2007     1,2-DICHLOROBENZENE                                 ug/L
PW5A-GW-045          N                   1/25/2007     1,2-DICHLOROETHANE                                  ug/L
PW5A-GW-045          N                   1/25/2007     1,2-DICHLOROPROPANE                  0.7            ug/L
PW5A-GW-045          N                   1/25/2007     1,4-DICHLOROBENZENE                  1.6            ug/L
PW5A-GW-045          N                   1/25/2007     BENZENE                                             ug/L
PW5A-GW-045          N                   1/25/2007     CHLOROBENZENE                                       ug/L
PW5A-GW-045          N                   1/25/2007     CHLOROFORM                                          ug/L
PW5A-GW-045          N                   1/25/2007     CIS-1,2-DICHLOROETHENE               24             ug/L
PW5A-GW-045          N                   1/25/2007     TETRACHLOROETHENE                    12             ug/L
PW5A-GW-045          N                   1/25/2007     TOLUENE                                             ug/L
PW5A-GW-045          N                   1/25/2007     TRANS-1,2-DICHLOROETHENE             2.2            ug/L
PW5A-GW-045          N                   1/25/2007     TRICHLOROETHENE                      9.4            ug/L
PW5A-GW-045          N                   1/25/2007     TRICHLOROFLUOROMETHANE                              ug/L
PW5A-GW-045          N                   1/25/2007     VINYL CHLORIDE                       0.88           ug/L
SAC-GW-045           N                   1/25/2007     1,1-DICHLOROETHANE                                  ug/L
SAC-GW-045           N                   1/25/2007     1,1-DICHLOROETHYLENE                                ug/L
SAC-GW-045           N                   1/25/2007     1,2-DICHLOROBENZENE                                 ug/L
SAC-GW-045           N                   1/25/2007     1,2-DICHLOROETHANE                                  ug/L
SAC-GW-045           N                   1/25/2007     1,2-DICHLOROPROPANE                                 ug/L
SAC-GW-045           N                   1/25/2007     1,4-DICHLOROBENZENE                                 ug/L
SAC-GW-045           N                   1/25/2007     BENZENE                                             ug/L
SAC-GW-045           N                   1/25/2007     CHLOROBENZENE                                       ug/L
SAC-GW-045           N                   1/25/2007     CHLOROFORM                                          ug/L
SAC-GW-045           N                   1/25/2007     CIS-1,2-DICHLOROETHENE               3.8            ug/L
SAC-GW-045           N                   1/25/2007     TETRACHLOROETHENE                    0.52           ug/L
SAC-GW-045           N                   1/25/2007     TOLUENE                                             ug/L
SAC-GW-045           N                   1/25/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
SAC-GW-045           N                   1/25/2007     TRICHLOROETHENE                                     ug/L
SAC-GW-045           N                   1/25/2007     TRICHLOROFLUOROMETHANE                              ug/L
SAC-GW-045           N                   1/25/2007     VINYL CHLORIDE                                      ug/L
CDM10A-GW-046        FD                  4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10A-GW-046        FD                  4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10A-GW-046        FD                  4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10A-GW-046        FD                  4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10A-GW-046        FD                  4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10A-GW-046        FD                  4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10A-GW-046        FD                  4/16/2007     BENZENE                                             ug/L
CDM10A-GW-046        FD                  4/16/2007     CHLOROBENZENE                                       ug/L
CDM10A-GW-046        FD                  4/16/2007     CHLOROFORM                                          ug/L
CDM10A-GW-046        FD                  4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10A-GW-046        FD                  4/16/2007     TETRACHLOROETHENE                                   ug/L
CDM10A-GW-046        FD                  4/16/2007     TOLUENE                                             ug/L
CDM10A-GW-046        FD                  4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10A-GW-046        FD                  4/16/2007     TRICHLOROETHENE                                     ug/L
CDM10A-GW-046        FD                  4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10A-GW-046        FD                  4/16/2007     VINYL CHLORIDE                                      ug/L
CDM15A-GW-046        N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15A-GW-046        N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15A-GW-046        N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15A-GW-046        N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15A-GW-046        N                   4/16/2007     1,2-DICHLOROPROPANE                  2              ug/L
CDM15A-GW-046        N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15A-GW-046        N                   4/16/2007     BENZENE                                             ug/L
CDM15A-GW-046        N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM15A-GW-046        N                   4/16/2007     CHLOROFORM                                          ug/L
CDM15A-GW-046        N                   4/16/2007     CIS-1,2-DICHLOROETHENE               68             ug/L
CDM15A-GW-046        N                   4/16/2007     TETRACHLOROETHENE                    5.7            ug/L
CDM15A-GW-046        N                   4/16/2007     TOLUENE                                             ug/L
CDM15A-GW-046        N                   4/16/2007     TRANS-1,2-DICHLOROETHENE             0.93           ug/L
CDM15A-GW-046        N                   4/16/2007     TRICHLOROETHENE                      2.7            ug/L
CDM15A-GW-046        N                   4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM15A-GW-046        N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM15B2-GW-046       N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15B2-GW-046       N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15B2-GW-046       N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-046       N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15B2-GW-046       N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM15B2-GW-046       N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L



                                                                                50 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM15B2-GW-046       N                   4/16/2007     BENZENE                                             ug/L
CDM15B2-GW-046       N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM15B2-GW-046       N                   4/16/2007     CHLOROFORM                                          ug/L
CDM15B2-GW-046       N                   4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM15B2-GW-046       N                   4/16/2007     TETRACHLOROETHENE                    12             ug/L
CDM15B2-GW-046       N                   4/16/2007     TOLUENE                                             ug/L
CDM15B2-GW-046       N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B2-GW-046       N                   4/16/2007     TRICHLOROETHENE                      1.5            ug/L
CDM15B2-GW-046       N                   4/16/2007     TRICHLOROFLUOROMETHANE               1.7            ug/L
CDM15B2-GW-046       N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM15B-GW-046        N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15B-GW-046        N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15B-GW-046        N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15B-GW-046        N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15B-GW-046        N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM15B-GW-046        N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15B-GW-046        N                   4/16/2007     BENZENE                                             ug/L
CDM15B-GW-046        N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM15B-GW-046        N                   4/16/2007     CHLOROFORM                                          ug/L
CDM15B-GW-046        N                   4/16/2007     CIS-1,2-DICHLOROETHENE               11             ug/L
CDM15B-GW-046        N                   4/16/2007     TETRACHLOROETHENE                    16             ug/L
CDM15B-GW-046        N                   4/16/2007     TOLUENE                                             ug/L
CDM15B-GW-046        N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B-GW-046        N                   4/16/2007     TRICHLOROETHENE                      2.2            ug/L
CDM15B-GW-046        N                   4/16/2007     TRICHLOROFLUOROMETHANE               1.5            ug/L
CDM15B-GW-046        N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM15C-GW-046        N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15C-GW-046        N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15C-GW-046        N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15C-GW-046        N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15C-GW-046        N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM15C-GW-046        N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15C-GW-046        N                   4/16/2007     BENZENE                                             ug/L
CDM15C-GW-046        N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM15C-GW-046        N                   4/16/2007     CHLOROFORM                                          ug/L
CDM15C-GW-046        N                   4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM15C-GW-046        N                   4/16/2007     TETRACHLOROETHENE                    4.4            ug/L
CDM15C-GW-046        N                   4/16/2007     TOLUENE                                             ug/L
CDM15C-GW-046        N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15C-GW-046        N                   4/16/2007     TRICHLOROETHENE                      0.61           ug/L
CDM15C-GW-046        N                   4/16/2007     TRICHLOROFLUOROMETHANE               0.63           ug/L
CDM15C-GW-046        N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM4A-GW-046         N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM4A-GW-046         N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM4A-GW-046         N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM4A-GW-046         N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM4A-GW-046         N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM4A-GW-046         N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM4A-GW-046         N                   4/16/2007     BENZENE                                             ug/L
CDM4A-GW-046         N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM4A-GW-046         N                   4/16/2007     CHLOROFORM                                          ug/L
CDM4A-GW-046         N                   4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM4A-GW-046         N                   4/16/2007     TETRACHLOROETHENE                    0.62           ug/L
CDM4A-GW-046         N                   4/16/2007     TOLUENE                                             ug/L
CDM4A-GW-046         N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4A-GW-046         N                   4/16/2007     TRICHLOROETHENE                                     ug/L
CDM4A-GW-046         N                   4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM4A-GW-046         N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM4B-GW-046         N                   4/16/2007     1,1-DICHLOROETHANE                   2.3            ug/L
CDM4B-GW-046         N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM4B-GW-046         N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM4B-GW-046         N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM4B-GW-046         N                   4/16/2007     1,2-DICHLOROPROPANE                  0.51           ug/L
CDM4B-GW-046         N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM4B-GW-046         N                   4/16/2007     BENZENE                                             ug/L
CDM4B-GW-046         N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM4B-GW-046         N                   4/16/2007     CHLOROFORM                                          ug/L
CDM4B-GW-046         N                   4/16/2007     CIS-1,2-DICHLOROETHENE               12             ug/L
CDM4B-GW-046         N                   4/16/2007     TETRACHLOROETHENE                    45             ug/L
CDM4B-GW-046         N                   4/16/2007     TOLUENE                                             ug/L
CDM4B-GW-046         N                   4/16/2007     TRANS-1,2-DICHLOROETHENE             2.4            ug/L
CDM4B-GW-046         N                   4/16/2007     TRICHLOROETHENE                      27             ug/L
CDM4B-GW-046         N                   4/16/2007     TRICHLOROFLUOROMETHANE               2.8            ug/L
CDM4B-GW-046         N                   4/16/2007     VINYL CHLORIDE                       0.77           ug/L
CDM4C-GW-046         N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM4C-GW-046         N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM4C-GW-046         N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM4C-GW-046         N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM4C-GW-046         N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM4C-GW-046         N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM4C-GW-046         N                   4/16/2007     BENZENE                                             ug/L
CDM4C-GW-046         N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM4C-GW-046         N                   4/16/2007     CHLOROFORM                                          ug/L



                                                                                51 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM4C-GW-046         N                   4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM4C-GW-046         N                   4/16/2007     TETRACHLOROETHENE                    3.3            ug/L
CDM4C-GW-046         N                   4/16/2007     TOLUENE                                             ug/L
CDM4C-GW-046         N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM4C-GW-046         N                   4/16/2007     TRICHLOROETHENE                      1.3            ug/L
CDM4C-GW-046         N                   4/16/2007     TRICHLOROFLUOROMETHANE               0.54           ug/L
CDM4C-GW-046         N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM6A-GW-046         N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM6A-GW-046         N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM6A-GW-046         N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM6A-GW-046         N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM6A-GW-046         N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM6A-GW-046         N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM6A-GW-046         N                   4/16/2007     BENZENE                                             ug/L
CDM6A-GW-046         N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM6A-GW-046         N                   4/16/2007     CHLOROFORM                                          ug/L
CDM6A-GW-046         N                   4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM6A-GW-046         N                   4/16/2007     TETRACHLOROETHENE                    5.1            ug/L
CDM6A-GW-046         N                   4/16/2007     TOLUENE                                             ug/L
CDM6A-GW-046         N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM6A-GW-046         N                   4/16/2007     TRICHLOROETHENE                                     ug/L
CDM6A-GW-046         N                   4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM6A-GW-046         N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM6A-GW-046Q        FD                  4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM6A-GW-046Q        FD                  4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM6A-GW-046Q        FD                  4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM6A-GW-046Q        FD                  4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM6A-GW-046Q        FD                  4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM6A-GW-046Q        FD                  4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM6A-GW-046Q        FD                  4/16/2007     BENZENE                                             ug/L
CDM6A-GW-046Q        FD                  4/16/2007     CHLOROBENZENE                                       ug/L
CDM6A-GW-046Q        FD                  4/16/2007     CHLOROFORM                                          ug/L
CDM6A-GW-046Q        FD                  4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM6A-GW-046Q        FD                  4/16/2007     TETRACHLOROETHENE                    5.2            ug/L
CDM6A-GW-046Q        FD                  4/16/2007     TOLUENE                                             ug/L
CDM6A-GW-046Q        FD                  4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM6A-GW-046Q        FD                  4/16/2007     TRICHLOROETHENE                                     ug/L
CDM6A-GW-046Q        FD                  4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM6A-GW-046Q        FD                  4/16/2007     VINYL CHLORIDE                                      ug/L
CDM8A-GW-046         N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM8A-GW-046         N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM8A-GW-046         N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM8A-GW-046         N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM8A-GW-046         N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM8A-GW-046         N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM8A-GW-046         N                   4/16/2007     BENZENE                                             ug/L
CDM8A-GW-046         N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM8A-GW-046         N                   4/16/2007     CHLOROFORM                                          ug/L
CDM8A-GW-046         N                   4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM8A-GW-046         N                   4/16/2007     TETRACHLOROETHENE                                   ug/L
CDM8A-GW-046         N                   4/16/2007     TOLUENE                                             ug/L
CDM8A-GW-046         N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8A-GW-046         N                   4/16/2007     TRICHLOROETHENE                                     ug/L
CDM8A-GW-046         N                   4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM8A-GW-046         N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM8B-GW-046         N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM8B-GW-046         N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM8B-GW-046         N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM8B-GW-046         N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM8B-GW-046         N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM8B-GW-046         N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM8B-GW-046         N                   4/16/2007     BENZENE                                             ug/L
CDM8B-GW-046         N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM8B-GW-046         N                   4/16/2007     CHLOROFORM                                          ug/L
CDM8B-GW-046         N                   4/16/2007     CIS-1,2-DICHLOROETHENE               1.3            ug/L
CDM8B-GW-046         N                   4/16/2007     TETRACHLOROETHENE                    1.2            ug/L
CDM8B-GW-046         N                   4/16/2007     TOLUENE                                             ug/L
CDM8B-GW-046         N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8B-GW-046         N                   4/16/2007     TRICHLOROETHENE                                     ug/L
CDM8B-GW-046         N                   4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM8B-GW-046         N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM8C-GW-046         N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
CDM8C-GW-046         N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM8C-GW-046         N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM8C-GW-046         N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
CDM8C-GW-046         N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM8C-GW-046         N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM8C-GW-046         N                   4/16/2007     BENZENE                                             ug/L
CDM8C-GW-046         N                   4/16/2007     CHLOROBENZENE                                       ug/L
CDM8C-GW-046         N                   4/16/2007     CHLOROFORM                                          ug/L
CDM8C-GW-046         N                   4/16/2007     CIS-1,2-DICHLOROETHENE               2.8            ug/L
CDM8C-GW-046         N                   4/16/2007     TETRACHLOROETHENE                    6              ug/L
CDM8C-GW-046         N                   4/16/2007     TOLUENE                                             ug/L



                                                                                52 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM8C-GW-046         N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM8C-GW-046         N                   4/16/2007     TRICHLOROETHENE                      1.7            ug/L
CDM8C-GW-046         N                   4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM8C-GW-046         N                   4/16/2007     VINYL CHLORIDE                                      ug/L
PZ2B-GW-046          N                   4/16/2007     1,1-DICHLOROETHANE                                  ug/L
PZ2B-GW-046          N                   4/16/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ2B-GW-046          N                   4/16/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ2B-GW-046          N                   4/16/2007     1,2-DICHLOROETHANE                                  ug/L
PZ2B-GW-046          N                   4/16/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ2B-GW-046          N                   4/16/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ2B-GW-046          N                   4/16/2007     BENZENE                                             ug/L
PZ2B-GW-046          N                   4/16/2007     CHLOROBENZENE                                       ug/L
PZ2B-GW-046          N                   4/16/2007     CHLOROFORM                                          ug/L
PZ2B-GW-046          N                   4/16/2007     CIS-1,2-DICHLOROETHENE                              ug/L
PZ2B-GW-046          N                   4/16/2007     TETRACHLOROETHENE                                   ug/L
PZ2B-GW-046          N                   4/16/2007     TOLUENE                                             ug/L
PZ2B-GW-046          N                   4/16/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ2B-GW-046          N                   4/16/2007     TRICHLOROETHENE                                     ug/L
PZ2B-GW-046          N                   4/16/2007     TRICHLOROFLUOROMETHANE                              ug/L
PZ2B-GW-046          N                   4/16/2007     VINYL CHLORIDE                                      ug/L
CDM10B-GW-046        FD                  4/17/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10B-GW-046        FD                  4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10B-GW-046        FD                  4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10B-GW-046        FD                  4/17/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10B-GW-046        FD                  4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10B-GW-046        FD                  4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10B-GW-046        FD                  4/17/2007     BENZENE                                             ug/L
CDM10B-GW-046        FD                  4/17/2007     CHLOROBENZENE                                       ug/L
CDM10B-GW-046        FD                  4/17/2007     CHLOROFORM                                          ug/L
CDM10B-GW-046        FD                  4/17/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10B-GW-046        FD                  4/17/2007     TETRACHLOROETHENE                                   ug/L
CDM10B-GW-046        FD                  4/17/2007     TOLUENE                                             ug/L
CDM10B-GW-046        FD                  4/17/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10B-GW-046        FD                  4/17/2007     TRICHLOROETHENE                                     ug/L
CDM10B-GW-046        FD                  4/17/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10B-GW-046        FD                  4/17/2007     VINYL CHLORIDE                                      ug/L
CDM16A-GW-046        N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
CDM16A-GW-046        N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM16A-GW-046        N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM16A-GW-046        N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
CDM16A-GW-046        N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM16A-GW-046        N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM16A-GW-046        N                   4/17/2007     BENZENE                                             ug/L
CDM16A-GW-046        N                   4/17/2007     CHLOROBENZENE                                       ug/L
CDM16A-GW-046        N                   4/17/2007     CHLOROFORM                                          ug/L
CDM16A-GW-046        N                   4/17/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16A-GW-046        N                   4/17/2007     TETRACHLOROETHENE                                   ug/L
CDM16A-GW-046        N                   4/17/2007     TOLUENE                                             ug/L
CDM16A-GW-046        N                   4/17/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16A-GW-046        N                   4/17/2007     TRICHLOROETHENE                                     ug/L
CDM16A-GW-046        N                   4/17/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM16A-GW-046        N                   4/17/2007     VINYL CHLORIDE                                      ug/L
CDM16B-GW-046        N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
CDM16B-GW-046        N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM16B-GW-046        N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM16B-GW-046        N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
CDM16B-GW-046        N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM16B-GW-046        N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM16B-GW-046        N                   4/17/2007     BENZENE                                             ug/L
CDM16B-GW-046        N                   4/17/2007     CHLOROBENZENE                                       ug/L
CDM16B-GW-046        N                   4/17/2007     CHLOROFORM                                          ug/L
CDM16B-GW-046        N                   4/17/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16B-GW-046        N                   4/17/2007     TETRACHLOROETHENE                    2.1            ug/L
CDM16B-GW-046        N                   4/17/2007     TOLUENE                                             ug/L
CDM16B-GW-046        N                   4/17/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16B-GW-046        N                   4/17/2007     TRICHLOROETHENE                                     ug/L
CDM16B-GW-046        N                   4/17/2007     TRICHLOROFLUOROMETHANE               2.7            ug/L
CDM16B-GW-046        N                   4/17/2007     VINYL CHLORIDE                                      ug/L
CDM16C-GW-046        N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
CDM16C-GW-046        N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM16C-GW-046        N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM16C-GW-046        N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
CDM16C-GW-046        N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM16C-GW-046        N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM16C-GW-046        N                   4/17/2007     BENZENE                                             ug/L
CDM16C-GW-046        N                   4/17/2007     CHLOROBENZENE                                       ug/L
CDM16C-GW-046        N                   4/17/2007     CHLOROFORM                                          ug/L
CDM16C-GW-046        N                   4/17/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM16C-GW-046        N                   4/17/2007     TETRACHLOROETHENE                                   ug/L
CDM16C-GW-046        N                   4/17/2007     TOLUENE                                             ug/L
CDM16C-GW-046        N                   4/17/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM16C-GW-046        N                   4/17/2007     TRICHLOROETHENE                                     ug/L
CDM16C-GW-046        N                   4/17/2007     TRICHLOROFLUOROMETHANE                              ug/L



                                                                                53 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM16C-GW-046        N                   4/17/2007     VINYL CHLORIDE                                      ug/L
DW1B-GW-046          N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
DW1B-GW-046          N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
DW1B-GW-046          N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
DW1B-GW-046          N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
DW1B-GW-046          N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
DW1B-GW-046          N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
DW1B-GW-046          N                   4/17/2007     BENZENE                                             ug/L
DW1B-GW-046          N                   4/17/2007     CHLOROBENZENE                                       ug/L
DW1B-GW-046          N                   4/17/2007     CHLOROFORM                                          ug/L
DW1B-GW-046          N                   4/17/2007     CIS-1,2-DICHLOROETHENE               5              ug/L
DW1B-GW-046          N                   4/17/2007     TETRACHLOROETHENE                    22             ug/L
DW1B-GW-046          N                   4/17/2007     TOLUENE                                             ug/L
DW1B-GW-046          N                   4/17/2007     TRANS-1,2-DICHLOROETHENE             1.6            ug/L
DW1B-GW-046          N                   4/17/2007     TRICHLOROETHENE                      8.5            ug/L
DW1B-GW-046          N                   4/17/2007     TRICHLOROFLUOROMETHANE                              ug/L
DW1B-GW-046          N                   4/17/2007     VINYL CHLORIDE                       2.4            ug/L
DW1C-GW-046          N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
DW1C-GW-046          N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
DW1C-GW-046          N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
DW1C-GW-046          N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
DW1C-GW-046          N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
DW1C-GW-046          N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
DW1C-GW-046          N                   4/17/2007     BENZENE                                             ug/L
DW1C-GW-046          N                   4/17/2007     CHLOROBENZENE                                       ug/L
DW1C-GW-046          N                   4/17/2007     CHLOROFORM                                          ug/L
DW1C-GW-046          N                   4/17/2007     CIS-1,2-DICHLOROETHENE               2.3            ug/L
DW1C-GW-046          N                   4/17/2007     TETRACHLOROETHENE                    13             ug/L
DW1C-GW-046          N                   4/17/2007     TOLUENE                                             ug/L
DW1C-GW-046          N                   4/17/2007     TRANS-1,2-DICHLOROETHENE             0.52           ug/L
DW1C-GW-046          N                   4/17/2007     TRICHLOROETHENE                      4.9            ug/L
DW1C-GW-046          N                   4/17/2007     TRICHLOROFLUOROMETHANE                              ug/L
DW1C-GW-046          N                   4/17/2007     VINYL CHLORIDE                       0.65           ug/L
PZ5A-GW-046          N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
PZ5A-GW-046          N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5A-GW-046          N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5A-GW-046          N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5A-GW-046          N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5A-GW-046          N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5A-GW-046          N                   4/17/2007     BENZENE                                             ug/L
PZ5A-GW-046          N                   4/17/2007     CHLOROBENZENE                                       ug/L
PZ5A-GW-046          N                   4/17/2007     CHLOROFORM                                          ug/L
PZ5A-GW-046          N                   4/17/2007     CIS-1,2-DICHLOROETHENE               9.1            ug/L
PZ5A-GW-046          N                   4/17/2007     TETRACHLOROETHENE                    0.63           ug/L
PZ5A-GW-046          N                   4/17/2007     TOLUENE                                             ug/L
PZ5A-GW-046          N                   4/17/2007     TRANS-1,2-DICHLOROETHENE             0.52           ug/L
PZ5A-GW-046          N                   4/17/2007     TRICHLOROETHENE                      2.2            ug/L
PZ5A-GW-046          N                   4/17/2007     TRICHLOROFLUOROMETHANE                              ug/L
PZ5A-GW-046          N                   4/17/2007     VINYL CHLORIDE                       2.9            ug/L
PZ5B2-GW-046         N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
PZ5B2-GW-046         N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5B2-GW-046         N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-046         N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5B2-GW-046         N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5B2-GW-046         N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-046         N                   4/17/2007     BENZENE                                             ug/L
PZ5B2-GW-046         N                   4/17/2007     CHLOROBENZENE                                       ug/L
PZ5B2-GW-046         N                   4/17/2007     CHLOROFORM                                          ug/L
PZ5B2-GW-046         N                   4/17/2007     CIS-1,2-DICHLOROETHENE               1              ug/L
PZ5B2-GW-046         N                   4/17/2007     TETRACHLOROETHENE                    11             ug/L
PZ5B2-GW-046         N                   4/17/2007     TOLUENE                                             ug/L
PZ5B2-GW-046         N                   4/17/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5B2-GW-046         N                   4/17/2007     TRICHLOROETHENE                      3.4            ug/L
PZ5B2-GW-046         N                   4/17/2007     TRICHLOROFLUOROMETHANE               0.75           ug/L
PZ5B2-GW-046         N                   4/17/2007     VINYL CHLORIDE                                      ug/L
PZ5C-GW-046          N                   4/17/2007     1,1-DICHLOROETHANE                                  ug/L
PZ5C-GW-046          N                   4/17/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5C-GW-046          N                   4/17/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5C-GW-046          N                   4/17/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5C-GW-046          N                   4/17/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5C-GW-046          N                   4/17/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5C-GW-046          N                   4/17/2007     BENZENE                                             ug/L
PZ5C-GW-046          N                   4/17/2007     CHLOROBENZENE                                       ug/L
PZ5C-GW-046          N                   4/17/2007     CHLOROFORM                                          ug/L
PZ5C-GW-046          N                   4/17/2007     CIS-1,2-DICHLOROETHENE               0.52           ug/L
PZ5C-GW-046          N                   4/17/2007     TETRACHLOROETHENE                    11             ug/L
PZ5C-GW-046          N                   4/17/2007     TOLUENE                                             ug/L
PZ5C-GW-046          N                   4/17/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5C-GW-046          N                   4/17/2007     TRICHLOROETHENE                      2.9            ug/L
PZ5C-GW-046          N                   4/17/2007     TRICHLOROFLUOROMETHANE               0.7            ug/L
PZ5C-GW-046          N                   4/17/2007     VINYL CHLORIDE                                      ug/L
CDM10C-GW-046        FD                  4/18/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10C-GW-046        FD                  4/18/2007     1,1-DICHLOROETHYLENE                                ug/L



                                                                                54 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM10C-GW-046        FD                  4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10C-GW-046        FD                  4/18/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10C-GW-046        FD                  4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10C-GW-046        FD                  4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10C-GW-046        FD                  4/18/2007     BENZENE                                             ug/L
CDM10C-GW-046        FD                  4/18/2007     CHLOROBENZENE                                       ug/L
CDM10C-GW-046        FD                  4/18/2007     CHLOROFORM                                          ug/L
CDM10C-GW-046        FD                  4/18/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10C-GW-046        FD                  4/18/2007     TETRACHLOROETHENE                                   ug/L
CDM10C-GW-046        FD                  4/18/2007     TOLUENE                                             ug/L
CDM10C-GW-046        FD                  4/18/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10C-GW-046        FD                  4/18/2007     TRICHLOROETHENE                                     ug/L
CDM10C-GW-046        FD                  4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10C-GW-046        FD                  4/18/2007     VINYL CHLORIDE                                      ug/L
CDM12A-GW-046        N                   4/18/2007     1,1-DICHLOROETHANE                   6.2            ug/L
CDM12A-GW-046        N                   4/18/2007     1,1-DICHLOROETHYLENE                 0.55           ug/L
CDM12A-GW-046        N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM12A-GW-046        N                   4/18/2007     1,2-DICHLOROETHANE                   0.71           ug/L
CDM12A-GW-046        N                   4/18/2007     1,2-DICHLOROPROPANE                  3.2            ug/L
CDM12A-GW-046        N                   4/18/2007     1,4-DICHLOROBENZENE                  2.3            ug/L
CDM12A-GW-046        N                   4/18/2007     BENZENE                              1.1            ug/L
CDM12A-GW-046        N                   4/18/2007     CHLOROBENZENE                                       ug/L
CDM12A-GW-046        N                   4/18/2007     CHLOROFORM                                          ug/L
CDM12A-GW-046        N                   4/18/2007     CIS-1,2-DICHLOROETHENE               310            ug/L
CDM12A-GW-046        N                   4/18/2007     TETRACHLOROETHENE                    9.8            ug/L
CDM12A-GW-046        N                   4/18/2007     TOLUENE                                             ug/L
CDM12A-GW-046        N                   4/18/2007     TRANS-1,2-DICHLOROETHENE             16             ug/L
CDM12A-GW-046        N                   4/18/2007     TRICHLOROETHENE                      11             ug/L
CDM12A-GW-046        N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM12A-GW-046        N                   4/18/2007     VINYL CHLORIDE                       44             ug/L
CDM12B-GW-046        N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
CDM12B-GW-046        N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM12B-GW-046        N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM12B-GW-046        N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
CDM12B-GW-046        N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM12B-GW-046        N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM12B-GW-046        N                   4/18/2007     BENZENE                                             ug/L
CDM12B-GW-046        N                   4/18/2007     CHLOROBENZENE                                       ug/L
CDM12B-GW-046        N                   4/18/2007     CHLOROFORM                                          ug/L
CDM12B-GW-046        N                   4/18/2007     CIS-1,2-DICHLOROETHENE               8.7            ug/L
CDM12B-GW-046        N                   4/18/2007     TETRACHLOROETHENE                    16             ug/L
CDM12B-GW-046        N                   4/18/2007     TOLUENE                                             ug/L
CDM12B-GW-046        N                   4/18/2007     TRANS-1,2-DICHLOROETHENE             0.85           ug/L
CDM12B-GW-046        N                   4/18/2007     TRICHLOROETHENE                      6              ug/L
CDM12B-GW-046        N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM12B-GW-046        N                   4/18/2007     VINYL CHLORIDE                       2.4            ug/L
CDM13A-GW-046        N                   4/18/2007     1,1-DICHLOROETHANE                   1.7            ug/L
CDM13A-GW-046        N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13A-GW-046        N                   4/18/2007     1,2-DICHLOROBENZENE                  0.7            ug/L
CDM13A-GW-046        N                   4/18/2007     1,2-DICHLOROETHANE                   0.9            ug/L
CDM13A-GW-046        N                   4/18/2007     1,2-DICHLOROPROPANE                  2.6            ug/L
CDM13A-GW-046        N                   4/18/2007     1,4-DICHLOROBENZENE                  6.3            ug/L
CDM13A-GW-046        N                   4/18/2007     BENZENE                                             ug/L
CDM13A-GW-046        N                   4/18/2007     CHLOROBENZENE                        0.69           ug/L
CDM13A-GW-046        N                   4/18/2007     CHLOROFORM                                          ug/L
CDM13A-GW-046        N                   4/18/2007     CIS-1,2-DICHLOROETHENE               180            ug/L
CDM13A-GW-046        N                   4/18/2007     TETRACHLOROETHENE                    9.3            ug/L
CDM13A-GW-046        N                   4/18/2007     TOLUENE                                             ug/L
CDM13A-GW-046        N                   4/18/2007     TRANS-1,2-DICHLOROETHENE             6.7            ug/L
CDM13A-GW-046        N                   4/18/2007     TRICHLOROETHENE                      19             ug/L
CDM13A-GW-046        N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13A-GW-046        N                   4/18/2007     VINYL CHLORIDE                       4.5            ug/L
CDM13B2-GW-046       N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13B2-GW-046       N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13B2-GW-046       N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-046       N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13B2-GW-046       N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13B2-GW-046       N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-046       N                   4/18/2007     BENZENE                                             ug/L
CDM13B2-GW-046       N                   4/18/2007     CHLOROBENZENE                                       ug/L
CDM13B2-GW-046       N                   4/18/2007     CHLOROFORM                                          ug/L
CDM13B2-GW-046       N                   4/18/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM13B2-GW-046       N                   4/18/2007     TETRACHLOROETHENE                    3.4            ug/L
CDM13B2-GW-046       N                   4/18/2007     TOLUENE                                             ug/L
CDM13B2-GW-046       N                   4/18/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13B2-GW-046       N                   4/18/2007     TRICHLOROETHENE                      1.8            ug/L
CDM13B2-GW-046       N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13B2-GW-046       N                   4/18/2007     VINYL CHLORIDE                       1.1            ug/L
CDM13B-GW-046        N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13B-GW-046        N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13B-GW-046        N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13B-GW-046        N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13B-GW-046        N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L



                                                                                55 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM13B-GW-046        N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13B-GW-046        N                   4/18/2007     BENZENE                                             ug/L
CDM13B-GW-046        N                   4/18/2007     CHLOROBENZENE                                       ug/L
CDM13B-GW-046        N                   4/18/2007     CHLOROFORM                                          ug/L
CDM13B-GW-046        N                   4/18/2007     CIS-1,2-DICHLOROETHENE               3.6            ug/L
CDM13B-GW-046        N                   4/18/2007     TETRACHLOROETHENE                    7.3            ug/L
CDM13B-GW-046        N                   4/18/2007     TOLUENE                                             ug/L
CDM13B-GW-046        N                   4/18/2007     TRANS-1,2-DICHLOROETHENE             0.88           ug/L
CDM13B-GW-046        N                   4/18/2007     TRICHLOROETHENE                      3.8            ug/L
CDM13B-GW-046        N                   4/18/2007     TRICHLOROFLUOROMETHANE               0.82           ug/L
CDM13B-GW-046        N                   4/18/2007     VINYL CHLORIDE                       6.1            ug/L
CDM13C-GW-046        N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13C-GW-046        N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13C-GW-046        N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13C-GW-046        N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13C-GW-046        N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13C-GW-046        N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13C-GW-046        N                   4/18/2007     BENZENE                                             ug/L
CDM13C-GW-046        N                   4/18/2007     CHLOROBENZENE                                       ug/L
CDM13C-GW-046        N                   4/18/2007     CHLOROFORM                                          ug/L
CDM13C-GW-046        N                   4/18/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM13C-GW-046        N                   4/18/2007     TETRACHLOROETHENE                                   ug/L
CDM13C-GW-046        N                   4/18/2007     TOLUENE                                             ug/L
CDM13C-GW-046        N                   4/18/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13C-GW-046        N                   4/18/2007     TRICHLOROETHENE                                     ug/L
CDM13C-GW-046        N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13C-GW-046        N                   4/18/2007     VINYL CHLORIDE                                      ug/L
CDM3A-GW-046         N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
CDM3A-GW-046         N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM3A-GW-046         N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM3A-GW-046         N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
CDM3A-GW-046         N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM3A-GW-046         N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM3A-GW-046         N                   4/18/2007     BENZENE                                             ug/L
CDM3A-GW-046         N                   4/18/2007     CHLOROBENZENE                                       ug/L
CDM3A-GW-046         N                   4/18/2007     CHLOROFORM                                          ug/L
CDM3A-GW-046         N                   4/18/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM3A-GW-046         N                   4/18/2007     TETRACHLOROETHENE                                   ug/L
CDM3A-GW-046         N                   4/18/2007     TOLUENE                                             ug/L
CDM3A-GW-046         N                   4/18/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM3A-GW-046         N                   4/18/2007     TRICHLOROETHENE                                     ug/L
CDM3A-GW-046         N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM3A-GW-046         N                   4/18/2007     VINYL CHLORIDE                                      ug/L
CDM3B-GW-046         N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
CDM3B-GW-046         N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM3B-GW-046         N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM3B-GW-046         N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
CDM3B-GW-046         N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM3B-GW-046         N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM3B-GW-046         N                   4/18/2007     BENZENE                                             ug/L
CDM3B-GW-046         N                   4/18/2007     CHLOROBENZENE                                       ug/L
CDM3B-GW-046         N                   4/18/2007     CHLOROFORM                                          ug/L
CDM3B-GW-046         N                   4/18/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM3B-GW-046         N                   4/18/2007     TETRACHLOROETHENE                                   ug/L
CDM3B-GW-046         N                   4/18/2007     TOLUENE                                             ug/L
CDM3B-GW-046         N                   4/18/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM3B-GW-046         N                   4/18/2007     TRICHLOROETHENE                                     ug/L
CDM3B-GW-046         N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM3B-GW-046         N                   4/18/2007     VINYL CHLORIDE                                      ug/L
UW1B-GW-046          N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
UW1B-GW-046          N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
UW1B-GW-046          N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
UW1B-GW-046          N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
UW1B-GW-046          N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
UW1B-GW-046          N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
UW1B-GW-046          N                   4/18/2007     BENZENE                                             ug/L
UW1B-GW-046          N                   4/18/2007     CHLOROBENZENE                                       ug/L
UW1B-GW-046          N                   4/18/2007     CHLOROFORM                                          ug/L
UW1B-GW-046          N                   4/18/2007     CIS-1,2-DICHLOROETHENE                              ug/L
UW1B-GW-046          N                   4/18/2007     TETRACHLOROETHENE                                   ug/L
UW1B-GW-046          N                   4/18/2007     TOLUENE                                             ug/L
UW1B-GW-046          N                   4/18/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
UW1B-GW-046          N                   4/18/2007     TRICHLOROETHENE                                     ug/L
UW1B-GW-046          N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
UW1B-GW-046          N                   4/18/2007     VINYL CHLORIDE                                      ug/L
UW1C-GW-046          N                   4/18/2007     1,1-DICHLOROETHANE                                  ug/L
UW1C-GW-046          N                   4/18/2007     1,1-DICHLOROETHYLENE                                ug/L
UW1C-GW-046          N                   4/18/2007     1,2-DICHLOROBENZENE                                 ug/L
UW1C-GW-046          N                   4/18/2007     1,2-DICHLOROETHANE                                  ug/L
UW1C-GW-046          N                   4/18/2007     1,2-DICHLOROPROPANE                                 ug/L
UW1C-GW-046          N                   4/18/2007     1,4-DICHLOROBENZENE                                 ug/L
UW1C-GW-046          N                   4/18/2007     BENZENE                                             ug/L
UW1C-GW-046          N                   4/18/2007     CHLOROBENZENE                                       ug/L



                                                                                56 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
UW1C-GW-046          N                   4/18/2007     CHLOROFORM                                          ug/L
UW1C-GW-046          N                   4/18/2007     CIS-1,2-DICHLOROETHENE                              ug/L
UW1C-GW-046          N                   4/18/2007     TETRACHLOROETHENE                                   ug/L
UW1C-GW-046          N                   4/18/2007     TOLUENE                                             ug/L
UW1C-GW-046          N                   4/18/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
UW1C-GW-046          N                   4/18/2007     TRICHLOROETHENE                                     ug/L
UW1C-GW-046          N                   4/18/2007     TRICHLOROFLUOROMETHANE                              ug/L
UW1C-GW-046          N                   4/18/2007     VINYL CHLORIDE                                      ug/L
CDM10D-GW-046        FD                  4/19/2007     1,1-DICHLOROETHANE                   2.5            ug/L
CDM10D-GW-046        FD                  4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10D-GW-046        FD                  4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10D-GW-046        FD                  4/19/2007     1,2-DICHLOROETHANE                   0.5            ug/L
CDM10D-GW-046        FD                  4/19/2007     1,2-DICHLOROPROPANE                  0.5            ug/L
CDM10D-GW-046        FD                  4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10D-GW-046        FD                  4/19/2007     BENZENE                                             ug/L
CDM10D-GW-046        FD                  4/19/2007     CHLOROBENZENE                                       ug/L
CDM10D-GW-046        FD                  4/19/2007     CHLOROFORM                                          ug/L
CDM10D-GW-046        FD                  4/19/2007     CIS-1,2-DICHLOROETHENE               18             ug/L
CDM10D-GW-046        FD                  4/19/2007     TETRACHLOROETHENE                    27             ug/L
CDM10D-GW-046        FD                  4/19/2007     TOLUENE                                             ug/L
CDM10D-GW-046        FD                  4/19/2007     TRANS-1,2-DICHLOROETHENE             1              ug/L
CDM10D-GW-046        FD                  4/19/2007     TRICHLOROETHENE                      9.5            ug/L
CDM10D-GW-046        FD                  4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10D-GW-046        FD                  4/19/2007     VINYL CHLORIDE                                      ug/L
CDM17A-GW-046        N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM17A-GW-046        N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM17A-GW-046        N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM17A-GW-046        N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM17A-GW-046        N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM17A-GW-046        N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM17A-GW-046        N                   4/19/2007     BENZENE                                             ug/L
CDM17A-GW-046        N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM17A-GW-046        N                   4/19/2007     CHLOROFORM                                          ug/L
CDM17A-GW-046        N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17A-GW-046        N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
CDM17A-GW-046        N                   4/19/2007     TOLUENE                                             ug/L
CDM17A-GW-046        N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17A-GW-046        N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM17A-GW-046        N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM17A-GW-046        N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM17B-GW-046        N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM17B-GW-046        N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM17B-GW-046        N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM17B-GW-046        N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM17B-GW-046        N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM17B-GW-046        N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM17B-GW-046        N                   4/19/2007     BENZENE                                             ug/L
CDM17B-GW-046        N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM17B-GW-046        N                   4/19/2007     CHLOROFORM                                          ug/L
CDM17B-GW-046        N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17B-GW-046        N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
CDM17B-GW-046        N                   4/19/2007     TOLUENE                                             ug/L
CDM17B-GW-046        N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17B-GW-046        N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM17B-GW-046        N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM17B-GW-046        N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM17C-GW-046        N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM17C-GW-046        N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM17C-GW-046        N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM17C-GW-046        N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM17C-GW-046        N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM17C-GW-046        N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM17C-GW-046        N                   4/19/2007     BENZENE                                             ug/L
CDM17C-GW-046        N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM17C-GW-046        N                   4/19/2007     CHLOROFORM                                          ug/L
CDM17C-GW-046        N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM17C-GW-046        N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
CDM17C-GW-046        N                   4/19/2007     TOLUENE                                             ug/L
CDM17C-GW-046        N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM17C-GW-046        N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM17C-GW-046        N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM17C-GW-046        N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM18A-GW-046        N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM18A-GW-046        N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM18A-GW-046        N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM18A-GW-046        N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM18A-GW-046        N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM18A-GW-046        N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM18A-GW-046        N                   4/19/2007     BENZENE                                             ug/L
CDM18A-GW-046        N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM18A-GW-046        N                   4/19/2007     CHLOROFORM                                          ug/L
CDM18A-GW-046        N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18A-GW-046        N                   4/19/2007     TETRACHLOROETHENE                                   ug/L



                                                                                57 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM18A-GW-046        N                   4/19/2007     TOLUENE                                             ug/L
CDM18A-GW-046        N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18A-GW-046        N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM18A-GW-046        N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM18A-GW-046        N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM18B-GW-046        N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM18B-GW-046        N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM18B-GW-046        N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM18B-GW-046        N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM18B-GW-046        N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM18B-GW-046        N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM18B-GW-046        N                   4/19/2007     BENZENE                                             ug/L
CDM18B-GW-046        N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM18B-GW-046        N                   4/19/2007     CHLOROFORM                                          ug/L
CDM18B-GW-046        N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18B-GW-046        N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
CDM18B-GW-046        N                   4/19/2007     TOLUENE                                             ug/L
CDM18B-GW-046        N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18B-GW-046        N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM18B-GW-046        N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM18B-GW-046        N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM18C-GW-046        N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM18C-GW-046        N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM18C-GW-046        N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM18C-GW-046        N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM18C-GW-046        N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM18C-GW-046        N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM18C-GW-046        N                   4/19/2007     BENZENE                                             ug/L
CDM18C-GW-046        N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM18C-GW-046        N                   4/19/2007     CHLOROFORM                                          ug/L
CDM18C-GW-046        N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM18C-GW-046        N                   4/19/2007     TETRACHLOROETHENE                    0.56           ug/L
CDM18C-GW-046        N                   4/19/2007     TOLUENE                                             ug/L
CDM18C-GW-046        N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM18C-GW-046        N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM18C-GW-046        N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM18C-GW-046        N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM5A-GW -046        N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM5A-GW -046        N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM5A-GW -046        N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM5A-GW -046        N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM5A-GW -046        N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM5A-GW -046        N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM5A-GW -046        N                   4/19/2007     BENZENE                                             ug/L
CDM5A-GW -046        N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM5A-GW -046        N                   4/19/2007     CHLOROFORM                                          ug/L
CDM5A-GW -046        N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM5A-GW -046        N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
CDM5A-GW -046        N                   4/19/2007     TOLUENE                                             ug/L
CDM5A-GW -046        N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5A-GW -046        N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM5A-GW -046        N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM5A-GW -046        N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM5B-GW-046         N                   4/19/2007     1,1-DICHLOROETHANE                   2.3            ug/L
CDM5B-GW-046         N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM5B-GW-046         N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM5B-GW-046         N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM5B-GW-046         N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM5B-GW-046         N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM5B-GW-046         N                   4/19/2007     BENZENE                                             ug/L
CDM5B-GW-046         N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM5B-GW-046         N                   4/19/2007     CHLOROFORM                                          ug/L
CDM5B-GW-046         N                   4/19/2007     CIS-1,2-DICHLOROETHENE               17             ug/L
CDM5B-GW-046         N                   4/19/2007     TETRACHLOROETHENE                    27             ug/L
CDM5B-GW-046         N                   4/19/2007     TOLUENE                                             ug/L
CDM5B-GW-046         N                   4/19/2007     TRANS-1,2-DICHLOROETHENE             0.94           ug/L
CDM5B-GW-046         N                   4/19/2007     TRICHLOROETHENE                      9.4            ug/L
CDM5B-GW-046         N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM5B-GW-046         N                   4/19/2007     VINYL CHLORIDE                                      ug/L
CDM5B-GW-046Q        FD                  4/19/2007     1,1-DICHLOROETHANE                   2.4            ug/L
CDM5B-GW-046Q        FD                  4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM5B-GW-046Q        FD                  4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM5B-GW-046Q        FD                  4/19/2007     1,2-DICHLOROETHANE                   0.5            ug/L
CDM5B-GW-046Q        FD                  4/19/2007     1,2-DICHLOROPROPANE                  0.54           ug/L
CDM5B-GW-046Q        FD                  4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM5B-GW-046Q        FD                  4/19/2007     BENZENE                                             ug/L
CDM5B-GW-046Q        FD                  4/19/2007     CHLOROBENZENE                                       ug/L
CDM5B-GW-046Q        FD                  4/19/2007     CHLOROFORM                                          ug/L
CDM5B-GW-046Q        FD                  4/19/2007     CIS-1,2-DICHLOROETHENE               17             ug/L
CDM5B-GW-046Q        FD                  4/19/2007     TETRACHLOROETHENE                    27             ug/L
CDM5B-GW-046Q        FD                  4/19/2007     TOLUENE                                             ug/L
CDM5B-GW-046Q        FD                  4/19/2007     TRANS-1,2-DICHLOROETHENE             0.99           ug/L
CDM5B-GW-046Q        FD                  4/19/2007     TRICHLOROETHENE                      9.4            ug/L



                                                                                58 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM5B-GW-046Q        FD                  4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM5B-GW-046Q        FD                  4/19/2007     VINYL CHLORIDE                                      ug/L
CDM5C-GW-046         N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
CDM5C-GW-046         N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM5C-GW-046         N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM5C-GW-046         N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
CDM5C-GW-046         N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM5C-GW-046         N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM5C-GW-046         N                   4/19/2007     BENZENE                                             ug/L
CDM5C-GW-046         N                   4/19/2007     CHLOROBENZENE                                       ug/L
CDM5C-GW-046         N                   4/19/2007     CHLOROFORM                                          ug/L
CDM5C-GW-046         N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM5C-GW-046         N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
CDM5C-GW-046         N                   4/19/2007     TOLUENE                                             ug/L
CDM5C-GW-046         N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM5C-GW-046         N                   4/19/2007     TRICHLOROETHENE                                     ug/L
CDM5C-GW-046         N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM5C-GW-046         N                   4/19/2007     VINYL CHLORIDE                                      ug/L
MW2-GW-046           N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
MW2-GW-046           N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
MW2-GW-046           N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
MW2-GW-046           N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
MW2-GW-046           N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
MW2-GW-046           N                   4/19/2007     1,4-DICHLOROBENZENE                  0.91           ug/L
MW2-GW-046           N                   4/19/2007     BENZENE                                             ug/L
MW2-GW-046           N                   4/19/2007     CHLOROBENZENE                                       ug/L
MW2-GW-046           N                   4/19/2007     CHLOROFORM                                          ug/L
MW2-GW-046           N                   4/19/2007     CIS-1,2-DICHLOROETHENE               2.7            ug/L
MW2-GW-046           N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
MW2-GW-046           N                   4/19/2007     TOLUENE                                             ug/L
MW2-GW-046           N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
MW2-GW-046           N                   4/19/2007     TRICHLOROETHENE                                     ug/L
MW2-GW-046           N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
MW2-GW-046           N                   4/19/2007     VINYL CHLORIDE                                      ug/L
PZ4C-GW-046          N                   4/19/2007     1,1-DICHLOROETHANE                                  ug/L
PZ4C-GW-046          N                   4/19/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ4C-GW-046          N                   4/19/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ4C-GW-046          N                   4/19/2007     1,2-DICHLOROETHANE                                  ug/L
PZ4C-GW-046          N                   4/19/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ4C-GW-046          N                   4/19/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ4C-GW-046          N                   4/19/2007     BENZENE                                             ug/L
PZ4C-GW-046          N                   4/19/2007     CHLOROBENZENE                                       ug/L
PZ4C-GW-046          N                   4/19/2007     CHLOROFORM                                          ug/L
PZ4C-GW-046          N                   4/19/2007     CIS-1,2-DICHLOROETHENE                              ug/L
PZ4C-GW-046          N                   4/19/2007     TETRACHLOROETHENE                                   ug/L
PZ4C-GW-046          N                   4/19/2007     TOLUENE                                             ug/L
PZ4C-GW-046          N                   4/19/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ4C-GW-046          N                   4/19/2007     TRICHLOROETHENE                                     ug/L
PZ4C-GW-046          N                   4/19/2007     TRICHLOROFLUOROMETHANE                              ug/L
PZ4C-GW-046          N                   4/19/2007     VINYL CHLORIDE                                      ug/L
1304J-GW-046         N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
1304J-GW-046         N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
1304J-GW-046         N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
1304J-GW-046         N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
1304J-GW-046         N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
1304J-GW-046         N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
1304J-GW-046         N                   4/20/2007     BENZENE                                             ug/L
1304J-GW-046         N                   4/20/2007     CHLOROBENZENE                                       ug/L
1304J-GW-046         N                   4/20/2007     CHLOROFORM                                          ug/L
1304J-GW-046         N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
1304J-GW-046         N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
1304J-GW-046         N                   4/20/2007     TOLUENE                                             ug/L
1304J-GW-046         N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
1304J-GW-046         N                   4/20/2007     TRICHLOROETHENE                                     ug/L
1304J-GW-046         N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
1304J-GW-046         N                   4/20/2007     VINYL CHLORIDE                                      ug/L
1346J-GW-046         N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
1346J-GW-046         N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
1346J-GW-046         N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
1346J-GW-046         N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
1346J-GW-046         N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
1346J-GW-046         N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
1346J-GW-046         N                   4/20/2007     BENZENE                                             ug/L
1346J-GW-046         N                   4/20/2007     CHLOROBENZENE                                       ug/L
1346J-GW-046         N                   4/20/2007     CHLOROFORM                                          ug/L
1346J-GW-046         N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
1346J-GW-046         N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
1346J-GW-046         N                   4/20/2007     TOLUENE                                             ug/L
1346J-GW-046         N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
1346J-GW-046         N                   4/20/2007     TRICHLOROETHENE                                     ug/L
1346J-GW-046         N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
1346J-GW-046         N                   4/20/2007     VINYL CHLORIDE                                      ug/L
1642J-GW-046         N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L



                                                                                59 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
1642J-GW-046         N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
1642J-GW-046         N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
1642J-GW-046         N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
1642J-GW-046         N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
1642J-GW-046         N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
1642J-GW-046         N                   4/20/2007     BENZENE                                             ug/L
1642J-GW-046         N                   4/20/2007     CHLOROBENZENE                                       ug/L
1642J-GW-046         N                   4/20/2007     CHLOROFORM                                          ug/L
1642J-GW-046         N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
1642J-GW-046         N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
1642J-GW-046         N                   4/20/2007     TOLUENE                                             ug/L
1642J-GW-046         N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
1642J-GW-046         N                   4/20/2007     TRICHLOROETHENE                                     ug/L
1642J-GW-046         N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
1642J-GW-046         N                   4/20/2007     VINYL CHLORIDE                                      ug/L
1650J-GW-046         N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
1650J-GW-046         N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
1650J-GW-046         N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
1650J-GW-046         N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
1650J-GW-046         N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
1650J-GW-046         N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
1650J-GW-046         N                   4/20/2007     BENZENE                                             ug/L
1650J-GW-046         N                   4/20/2007     CHLOROBENZENE                                       ug/L
1650J-GW-046         N                   4/20/2007     CHLOROFORM                                          ug/L
1650J-GW-046         N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
1650J-GW-046         N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
1650J-GW-046         N                   4/20/2007     TOLUENE                                             ug/L
1650J-GW-046         N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
1650J-GW-046         N                   4/20/2007     TRICHLOROETHENE                                     ug/L
1650J-GW-046         N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
1650J-GW-046         N                   4/20/2007     VINYL CHLORIDE                                      ug/L
1770N-GW-046         N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
1770N-GW-046         N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
1770N-GW-046         N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
1770N-GW-046         N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
1770N-GW-046         N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
1770N-GW-046         N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
1770N-GW-046         N                   4/20/2007     BENZENE                                             ug/L
1770N-GW-046         N                   4/20/2007     CHLOROBENZENE                                       ug/L
1770N-GW-046         N                   4/20/2007     CHLOROFORM                                          ug/L
1770N-GW-046         N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
1770N-GW-046         N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
1770N-GW-046         N                   4/20/2007     TOLUENE                                             ug/L
1770N-GW-046         N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
1770N-GW-046         N                   4/20/2007     TRICHLOROETHENE                                     ug/L
1770N-GW-046         N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
1770N-GW-046         N                   4/20/2007     VINYL CHLORIDE                                      ug/L
1912 J-GW-046        N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
1912 J-GW-046        N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
1912 J-GW-046        N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
1912 J-GW-046        N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
1912 J-GW-046        N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
1912 J-GW-046        N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
1912 J-GW-046        N                   4/20/2007     BENZENE                                             ug/L
1912 J-GW-046        N                   4/20/2007     CHLOROBENZENE                                       ug/L
1912 J-GW-046        N                   4/20/2007     CHLOROFORM                                          ug/L
1912 J-GW-046        N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
1912 J-GW-046        N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
1912 J-GW-046        N                   4/20/2007     TOLUENE                                             ug/L
1912 J-GW-046        N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
1912 J-GW-046        N                   4/20/2007     TRICHLOROETHENE                                     ug/L
1912 J-GW-046        N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
1912 J-GW-046        N                   4/20/2007     VINYL CHLORIDE                                      ug/L
2045N-GW-046         N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
2045N-GW-046         N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
2045N-GW-046         N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
2045N-GW-046         N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
2045N-GW-046         N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
2045N-GW-046         N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
2045N-GW-046         N                   4/20/2007     BENZENE                                             ug/L
2045N-GW-046         N                   4/20/2007     CHLOROBENZENE                                       ug/L
2045N-GW-046         N                   4/20/2007     CHLOROFORM                                          ug/L
2045N-GW-046         N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
2045N-GW-046         N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
2045N-GW-046         N                   4/20/2007     TOLUENE                                             ug/L
2045N-GW-046         N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
2045N-GW-046         N                   4/20/2007     TRICHLOROETHENE                                     ug/L
2045N-GW-046         N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
2045N-GW-046         N                   4/20/2007     VINYL CHLORIDE                                      ug/L
2429N-GW-046         N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
2429N-GW-046         N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
2429N-GW-046         N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
2429N-GW-046         N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L



                                                                                60 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
2429N-GW-046         N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
2429N-GW-046         N                   4/20/2007     1,4-DICHLOROBENZENE                                 ug/L
2429N-GW-046         N                   4/20/2007     BENZENE                                             ug/L
2429N-GW-046         N                   4/20/2007     CHLOROBENZENE                                       ug/L
2429N-GW-046         N                   4/20/2007     CHLOROFORM                                          ug/L
2429N-GW-046         N                   4/20/2007     CIS-1,2-DICHLOROETHENE                              ug/L
2429N-GW-046         N                   4/20/2007     TETRACHLOROETHENE                    1.8            ug/L
2429N-GW-046         N                   4/20/2007     TOLUENE                                             ug/L
2429N-GW-046         N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
2429N-GW-046         N                   4/20/2007     TRICHLOROETHENE                                     ug/L
2429N-GW-046         N                   4/20/2007     TRICHLOROFLUOROMETHANE               1.5            ug/L
2429N-GW-046         N                   4/20/2007     VINYL CHLORIDE                                      ug/L
CDM10E-GW-046        FD                  4/20/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10E-GW-046        FD                  4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10E-GW-046        FD                  4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10E-GW-046        FD                  4/20/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10E-GW-046        FD                  4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10E-GW-046        FD                  4/20/2007     1,4-DICHLOROBENZENE                  0.97           ug/L
CDM10E-GW-046        FD                  4/20/2007     BENZENE                                             ug/L
CDM10E-GW-046        FD                  4/20/2007     CHLOROBENZENE                                       ug/L
CDM10E-GW-046        FD                  4/20/2007     CHLOROFORM                                          ug/L
CDM10E-GW-046        FD                  4/20/2007     CIS-1,2-DICHLOROETHENE               7.7            ug/L
CDM10E-GW-046        FD                  4/20/2007     TETRACHLOROETHENE                                   ug/L
CDM10E-GW-046        FD                  4/20/2007     TOLUENE                                             ug/L
CDM10E-GW-046        FD                  4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10E-GW-046        FD                  4/20/2007     TRICHLOROETHENE                      0.52           ug/L
CDM10E-GW-046        FD                  4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10E-GW-046        FD                  4/20/2007     VINYL CHLORIDE                                      ug/L
PW2A-GW-046          N                   4/20/2007     1,1-DICHLOROETHANE                                  ug/L
PW2A-GW-046          N                   4/20/2007     1,1-DICHLOROETHYLENE                                ug/L
PW2A-GW-046          N                   4/20/2007     1,2-DICHLOROBENZENE                                 ug/L
PW2A-GW-046          N                   4/20/2007     1,2-DICHLOROETHANE                                  ug/L
PW2A-GW-046          N                   4/20/2007     1,2-DICHLOROPROPANE                                 ug/L
PW2A-GW-046          N                   4/20/2007     1,4-DICHLOROBENZENE                  0.98           ug/L
PW2A-GW-046          N                   4/20/2007     BENZENE                                             ug/L
PW2A-GW-046          N                   4/20/2007     CHLOROBENZENE                                       ug/L
PW2A-GW-046          N                   4/20/2007     CHLOROFORM                                          ug/L
PW2A-GW-046          N                   4/20/2007     CIS-1,2-DICHLOROETHENE               7.7            ug/L
PW2A-GW-046          N                   4/20/2007     TETRACHLOROETHENE                                   ug/L
PW2A-GW-046          N                   4/20/2007     TOLUENE                                             ug/L
PW2A-GW-046          N                   4/20/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PW2A-GW-046          N                   4/20/2007     TRICHLOROETHENE                      0.52           ug/L
PW2A-GW-046          N                   4/20/2007     TRICHLOROFLUOROMETHANE                              ug/L
PW2A-GW-046          N                   4/20/2007     VINYL CHLORIDE                                      ug/L
CDM10F-GW-046        FD                  4/23/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10F-GW-046        FD                  4/23/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10F-GW-046        FD                  4/23/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10F-GW-046        FD                  4/23/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10F-GW-046        FD                  4/23/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10F-GW-046        FD                  4/23/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10F-GW-046        FD                  4/23/2007     BENZENE                                             ug/L
CDM10F-GW-046        FD                  4/23/2007     CHLOROBENZENE                                       ug/L
CDM10F-GW-046        FD                  4/23/2007     CHLOROFORM                                          ug/L
CDM10F-GW-046        FD                  4/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10F-GW-046        FD                  4/23/2007     TETRACHLOROETHENE                                   ug/L
CDM10F-GW-046        FD                  4/23/2007     TOLUENE                                             ug/L
CDM10F-GW-046        FD                  4/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10F-GW-046        FD                  4/23/2007     TRICHLOROETHENE                                     ug/L
CDM10F-GW-046        FD                  4/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM10F-GW-046        FD                  4/23/2007     VINYL CHLORIDE                                      ug/L
EFF-GW-046           N                   4/23/2007     1,1-DICHLOROETHANE                                  ug/L
EFF-GW-046           N                   4/23/2007     1,1-DICHLOROETHYLENE                                ug/L
EFF-GW-046           N                   4/23/2007     1,2-DICHLOROBENZENE                                 ug/L
EFF-GW-046           N                   4/23/2007     1,2-DICHLOROETHANE                                  ug/L
EFF-GW-046           N                   4/23/2007     1,2-DICHLOROPROPANE                                 ug/L
EFF-GW-046           N                   4/23/2007     1,4-DICHLOROBENZENE                                 ug/L
EFF-GW-046           N                   4/23/2007     BENZENE                                             ug/L
EFF-GW-046           N                   4/23/2007     CHLOROBENZENE                                       ug/L
EFF-GW-046           N                   4/23/2007     CHLOROFORM                                          ug/L
EFF-GW-046           N                   4/23/2007     CIS-1,2-DICHLOROETHENE                              ug/L
EFF-GW-046           N                   4/23/2007     TETRACHLOROETHENE                                   ug/L
EFF-GW-046           N                   4/23/2007     TOLUENE                                             ug/L
EFF-GW-046           N                   4/23/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
EFF-GW-046           N                   4/23/2007     TRICHLOROETHENE                                     ug/L
EFF-GW-046           N                   4/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
EFF-GW-046           N                   4/23/2007     VINYL CHLORIDE                                      ug/L
INF-GW-046           N                   4/23/2007     1,1-DICHLOROETHANE                                  ug/L
INF-GW-046           N                   4/23/2007     1,1-DICHLOROETHYLENE                                ug/L
INF-GW-046           N                   4/23/2007     1,2-DICHLOROBENZENE                                 ug/L
INF-GW-046           N                   4/23/2007     1,2-DICHLOROETHANE                                  ug/L
INF-GW-046           N                   4/23/2007     1,2-DICHLOROPROPANE                  0.72           ug/L
INF-GW-046           N                   4/23/2007     1,4-DICHLOROBENZENE                  0.64           ug/L
INF-GW-046           N                   4/23/2007     BENZENE                                             ug/L



                                                                                61 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
INF-GW-046           N                   4/23/2007     CHLOROBENZENE                                       ug/L
INF-GW-046           N                   4/23/2007     CHLOROFORM                                          ug/L
INF-GW-046           N                   4/23/2007     CIS-1,2-DICHLOROETHENE               29             ug/L
INF-GW-046           N                   4/23/2007     TETRACHLOROETHENE                    11             ug/L
INF-GW-046           N                   4/23/2007     TOLUENE                                             ug/L
INF-GW-046           N                   4/23/2007     TRANS-1,2-DICHLOROETHENE             1.4            ug/L
INF-GW-046           N                   4/23/2007     TRICHLOROETHENE                      7.8            ug/L
INF-GW-046           N                   4/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
INF-GW-046           N                   4/23/2007     VINYL CHLORIDE                       1.2            ug/L
PW4A-GW-046          N                   4/23/2007     1,1-DICHLOROETHANE                   3.7            ug/L
PW4A-GW-046          N                   4/23/2007     1,1-DICHLOROETHYLENE                                ug/L
PW4A-GW-046          N                   4/23/2007     1,2-DICHLOROBENZENE                                 ug/L
PW4A-GW-046          N                   4/23/2007     1,2-DICHLOROETHANE                   0.56           ug/L
PW4A-GW-046          N                   4/23/2007     1,2-DICHLOROPROPANE                  1.4            ug/L
PW4A-GW-046          N                   4/23/2007     1,4-DICHLOROBENZENE                  1.7            ug/L
PW4A-GW-046          N                   4/23/2007     BENZENE                                             ug/L
PW4A-GW-046          N                   4/23/2007     CHLOROBENZENE                                       ug/L
PW4A-GW-046          N                   4/23/2007     CHLOROFORM                                          ug/L
PW4A-GW-046          N                   4/23/2007     CIS-1,2-DICHLOROETHENE               110            ug/L
PW4A-GW-046          N                   4/23/2007     TETRACHLOROETHENE                    39             ug/L
PW4A-GW-046          N                   4/23/2007     TOLUENE                                             ug/L
PW4A-GW-046          N                   4/23/2007     TRANS-1,2-DICHLOROETHENE             6.6            ug/L
PW4A-GW-046          N                   4/23/2007     TRICHLOROETHENE                      31             ug/L
PW4A-GW-046          N                   4/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
PW4A-GW-046          N                   4/23/2007     VINYL CHLORIDE                       7              ug/L
PW5A-GW-046          N                   4/23/2007     1,1-DICHLOROETHANE                                  ug/L
PW5A-GW-046          N                   4/23/2007     1,1-DICHLOROETHYLENE                                ug/L
PW5A-GW-046          N                   4/23/2007     1,2-DICHLOROBENZENE                                 ug/L
PW5A-GW-046          N                   4/23/2007     1,2-DICHLOROETHANE                                  ug/L
PW5A-GW-046          N                   4/23/2007     1,2-DICHLOROPROPANE                  0.56           ug/L
PW5A-GW-046          N                   4/23/2007     1,4-DICHLOROBENZENE                  0.93           ug/L
PW5A-GW-046          N                   4/23/2007     BENZENE                                             ug/L
PW5A-GW-046          N                   4/23/2007     CHLOROBENZENE                                       ug/L
PW5A-GW-046          N                   4/23/2007     CHLOROFORM                                          ug/L
PW5A-GW-046          N                   4/23/2007     CIS-1,2-DICHLOROETHENE               20             ug/L
PW5A-GW-046          N                   4/23/2007     TETRACHLOROETHENE                    10             ug/L
PW5A-GW-046          N                   4/23/2007     TOLUENE                                             ug/L
PW5A-GW-046          N                   4/23/2007     TRANS-1,2-DICHLOROETHENE             1.7            ug/L
PW5A-GW-046          N                   4/23/2007     TRICHLOROETHENE                      7.6            ug/L
PW5A-GW-046          N                   4/23/2007     TRICHLOROFLUOROMETHANE                              ug/L
PW5A-GW-046          N                   4/23/2007     VINYL CHLORIDE                       0.6            ug/L
CDM10A-GW-047        FD                  7/30/2007     1,1-DICHLOROETHANE                                  ug/L
CDM10A-GW-047        FD                  7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM10A-GW-047        FD                  7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM10A-GW-047        FD                  7/30/2007     1,2-DICHLOROETHANE                                  ug/L
CDM10A-GW-047        FD                  7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM10A-GW-047        FD                  7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM10A-GW-047        FD                  7/30/2007     BENZENE                                             ug/L
CDM10A-GW-047        FD                  7/30/2007     CHLOROBENZENE                                       ug/L
CDM10A-GW-047        FD                  7/30/2007     CHLOROFORM                                          ug/L
CDM10A-GW-047        FD                  7/30/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM10A-GW-047        FD                  7/30/2007     TETRACHLOROETHENE                    13             ug/L
CDM10A-GW-047        FD                  7/30/2007     TOLUENE                                             ug/L
CDM10A-GW-047        FD                  7/30/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM10A-GW-047        FD                  7/30/2007     TRICHLOROETHENE                      1.8            ug/L
CDM10A-GW-047        FD                  7/30/2007     TRICHLOROFLUOROMETHANE               2.2            ug/L
CDM10A-GW-047        FD                  7/30/2007     VINYL CHLORIDE                                      ug/L
CDM12A-GW-047        N                   7/30/2007     1,1-DICHLOROETHANE                   4.2            ug/L
CDM12A-GW-047        N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM12A-GW-047        N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM12A-GW-047        N                   7/30/2007     1,2-DICHLOROETHANE                   0.51           ug/L
CDM12A-GW-047        N                   7/30/2007     1,2-DICHLOROPROPANE                  2.2            ug/L
CDM12A-GW-047        N                   7/30/2007     1,4-DICHLOROBENZENE                  1.8            ug/L
CDM12A-GW-047        N                   7/30/2007     BENZENE                              0.8            ug/L
CDM12A-GW-047        N                   7/30/2007     CHLOROBENZENE                                       ug/L
CDM12A-GW-047        N                   7/30/2007     CHLOROFORM                                          ug/L
CDM12A-GW-047        N                   7/30/2007     CIS-1,2-DICHLOROETHENE               230            ug/L
CDM12A-GW-047        N                   7/30/2007     TETRACHLOROETHENE                    5.2            ug/L
CDM12A-GW-047        N                   7/30/2007     TOLUENE                                             ug/L
CDM12A-GW-047        N                   7/30/2007     TRANS-1,2-DICHLOROETHENE             11             ug/L
CDM12A-GW-047        N                   7/30/2007     TRICHLOROETHENE                      6.2            ug/L
CDM12A-GW-047        N                   7/30/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM12A-GW-047        N                   7/30/2007     VINYL CHLORIDE                       32             ug/L
CDM12B-GW-047        N                   7/30/2007     1,1-DICHLOROETHANE                   3.3            ug/L
CDM12B-GW-047        N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM12B-GW-047        N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM12B-GW-047        N                   7/30/2007     1,2-DICHLOROETHANE                   0.5            ug/L
CDM12B-GW-047        N                   7/30/2007     1,2-DICHLOROPROPANE                  0.75           ug/L
CDM12B-GW-047        N                   7/30/2007     1,4-DICHLOROBENZENE                  0.84           ug/L
CDM12B-GW-047        N                   7/30/2007     BENZENE                              0.7            ug/L
CDM12B-GW-047        N                   7/30/2007     CHLOROBENZENE                                       ug/L
CDM12B-GW-047        N                   7/30/2007     CHLOROFORM                                          ug/L
CDM12B-GW-047        N                   7/30/2007     CIS-1,2-DICHLOROETHENE               70             ug/L



                                                                                62 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM12B-GW-047        N                   7/30/2007     TETRACHLOROETHENE                    26             ug/L
CDM12B-GW-047        N                   7/30/2007     TOLUENE                                             ug/L
CDM12B-GW-047        N                   7/30/2007     TRANS-1,2-DICHLOROETHENE             4.8            ug/L
CDM12B-GW-047        N                   7/30/2007     TRICHLOROETHENE                      16             ug/L
CDM12B-GW-047        N                   7/30/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM12B-GW-047        N                   7/30/2007     VINYL CHLORIDE                       13             ug/L
CDM13A-GW-047        N                   7/30/2007     1,1-DICHLOROETHANE                   1.6            ug/L
CDM13A-GW-047        N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13A-GW-047        N                   7/30/2007     1,2-DICHLOROBENZENE                  0.62           ug/L
CDM13A-GW-047        N                   7/30/2007     1,2-DICHLOROETHANE                   0.95           ug/L
CDM13A-GW-047        N                   7/30/2007     1,2-DICHLOROPROPANE                  2.4            ug/L
CDM13A-GW-047        N                   7/30/2007     1,4-DICHLOROBENZENE                  5.9            ug/L
CDM13A-GW-047        N                   7/30/2007     BENZENE                                             ug/L
CDM13A-GW-047        N                   7/30/2007     CHLOROBENZENE                        0.61           ug/L
CDM13A-GW-047        N                   7/30/2007     CHLOROFORM                                          ug/L
CDM13A-GW-047        N                   7/30/2007     CIS-1,2-DICHLOROETHENE               170            ug/L
CDM13A-GW-047        N                   7/30/2007     TETRACHLOROETHENE                    7.6            ug/L
CDM13A-GW-047        N                   7/30/2007     TOLUENE                                             ug/L
CDM13A-GW-047        N                   7/30/2007     TRANS-1,2-DICHLOROETHENE             6.4            ug/L
CDM13A-GW-047        N                   7/30/2007     TRICHLOROETHENE                      17             ug/L
CDM13A-GW-047        N                   7/30/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13A-GW-047        N                   7/30/2007     VINYL CHLORIDE                       3.9            ug/L
CDM13B2-GW-047       N                   7/30/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13B2-GW-047       N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13B2-GW-047       N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-047       N                   7/30/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13B2-GW-047       N                   7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13B2-GW-047       N                   7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-047       N                   7/30/2007     BENZENE                                             ug/L
CDM13B2-GW-047       N                   7/30/2007     CHLOROBENZENE                                       ug/L
CDM13B2-GW-047       N                   7/30/2007     CHLOROFORM                                          ug/L
CDM13B2-GW-047       N                   7/30/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM13B2-GW-047       N                   7/30/2007     TETRACHLOROETHENE                    2.4            ug/L
CDM13B2-GW-047       N                   7/30/2007     TOLUENE                                             ug/L
CDM13B2-GW-047       N                   7/30/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13B2-GW-047       N                   7/30/2007     TRICHLOROETHENE                      1.5            ug/L
CDM13B2-GW-047       N                   7/30/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13B2-GW-047       N                   7/30/2007     VINYL CHLORIDE                       0.72           ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     BENZENE                                             ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     CHLOROBENZENE                                       ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     CHLOROFORM                                          ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     TETRACHLOROETHENE                    2.5            ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     TOLUENE                                             ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     TRICHLOROETHENE                      1.4            ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM13B2-GW-047Q      FD                  7/30/2007     VINYL CHLORIDE                       0.72           ug/L
CDM13B-GW-047        N                   7/30/2007     1,1-DICHLOROETHANE                                  ug/L
CDM13B-GW-047        N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM13B-GW-047        N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM13B-GW-047        N                   7/30/2007     1,2-DICHLOROETHANE                                  ug/L
CDM13B-GW-047        N                   7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM13B-GW-047        N                   7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM13B-GW-047        N                   7/30/2007     BENZENE                                             ug/L
CDM13B-GW-047        N                   7/30/2007     CHLOROBENZENE                                       ug/L
CDM13B-GW-047        N                   7/30/2007     CHLOROFORM                                          ug/L
CDM13B-GW-047        N                   7/30/2007     CIS-1,2-DICHLOROETHENE               2.7            ug/L
CDM13B-GW-047        N                   7/30/2007     TETRACHLOROETHENE                    6.7            ug/L
CDM13B-GW-047        N                   7/30/2007     TOLUENE                                             ug/L
CDM13B-GW-047        N                   7/30/2007     TRANS-1,2-DICHLOROETHENE             0.99           ug/L
CDM13B-GW-047        N                   7/30/2007     TRICHLOROETHENE                      3.7            ug/L
CDM13B-GW-047        N                   7/30/2007     TRICHLOROFLUOROMETHANE               0.67           ug/L
CDM13B-GW-047        N                   7/30/2007     VINYL CHLORIDE                       7.2            ug/L
CDM15A-GW-047        N                   7/30/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15A-GW-047        N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15A-GW-047        N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15A-GW-047        N                   7/30/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15A-GW-047        N                   7/30/2007     1,2-DICHLOROPROPANE                  3.2            ug/L
CDM15A-GW-047        N                   7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15A-GW-047        N                   7/30/2007     BENZENE                                             ug/L
CDM15A-GW-047        N                   7/30/2007     CHLOROBENZENE                                       ug/L
CDM15A-GW-047        N                   7/30/2007     CHLOROFORM                                          ug/L
CDM15A-GW-047        N                   7/30/2007     CIS-1,2-DICHLOROETHENE               120            ug/L
CDM15A-GW-047        N                   7/30/2007     TETRACHLOROETHENE                    5.2            ug/L
CDM15A-GW-047        N                   7/30/2007     TOLUENE                                             ug/L
CDM15A-GW-047        N                   7/30/2007     TRANS-1,2-DICHLOROETHENE             1.2            ug/L



                                                                                63 of 128
                                     Attachment 7, Table B. Groundwater Contaminant of Concern Concentrations



sys_sample_code (Well
ID & sample delivery
group)                sample_type_code   sample_date   chemical_name                        result_value   result_unit
CDM15A-GW-047        N                   7/30/2007     TRICHLOROETHENE                      3.4            ug/L
CDM15A-GW-047        N                   7/30/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM15A-GW-047        N                   7/30/2007     VINYL CHLORIDE                                      ug/L
CDM15B2-GW-047       N                   7/30/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15B2-GW-047       N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15B2-GW-047       N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-047       N                   7/30/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15B2-GW-047       N                   7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM15B2-GW-047       N                   7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15B2-GW-047       N                   7/30/2007     BENZENE                                             ug/L
CDM15B2-GW-047       N                   7/30/2007     CHLOROBENZENE                                       ug/L
CDM15B2-GW-047       N                   7/30/2007     CHLOROFORM                                          ug/L
CDM15B2-GW-047       N                   7/30/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM15B2-GW-047       N                   7/30/2007     TETRACHLOROETHENE                    12             ug/L
CDM15B2-GW-047       N                   7/30/2007     TOLUENE                                             ug/L
CDM15B2-GW-047       N                   7/30/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B2-GW-047       N                   7/30/2007     TRICHLOROETHENE                      1.8            ug/L
CDM15B2-GW-047       N                   7/30/2007     TRICHLOROFLUOROMETHANE               2.2            ug/L
CDM15B2-GW-047       N                   7/30/2007     VINYL CHLORIDE                                      ug/L
CDM15B-GW-047        N                   7/30/2007     1,1-DICHLOROETHANE                                  ug/L
CDM15B-GW-047        N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
CDM15B-GW-047        N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
CDM15B-GW-047        N                   7/30/2007     1,2-DICHLOROETHANE                                  ug/L
CDM15B-GW-047        N                   7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
CDM15B-GW-047        N                   7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
CDM15B-GW-047        N                   7/30/2007     BENZENE                                             ug/L
CDM15B-GW-047        N                   7/30/2007     CHLOROBENZENE                                       ug/L
CDM15B-GW-047        N                   7/30/2007     CHLOROFORM                                          ug/L
CDM15B-GW-047        N                   7/30/2007     CIS-1,2-DICHLOROETHENE                              ug/L
CDM15B-GW-047        N                   7/30/2007     TETRACHLOROETHENE                                   ug/L
CDM15B-GW-047        N                   7/30/2007     TOLUENE                                             ug/L
CDM15B-GW-047        N                   7/30/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
CDM15B-GW-047        N                   7/30/2007     TRICHLOROETHENE                                     ug/L
CDM15B-GW-047        N                   7/30/2007     TRICHLOROFLUOROMETHANE                              ug/L
CDM15B-GW-047        N                   7/30/2007     VINYL CHLORIDE                                      ug/L
PZ5B2-GW-047         N                   7/30/2007     1,1-DICHLOROETHANE                                  ug/L
PZ5B2-GW-047         N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5B2-GW-047         N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-047         N                   7/30/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5B2-GW-047         N                   7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5B2-GW-047         N                   7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5B2-GW-047         N                   7/30/2007     BENZENE                                             ug/L
PZ5B2-GW-047         N                   7/30/2007     CHLOROBENZENE                                       ug/L
PZ5B2-GW-047         N                   7/30/2007     CHLOROFORM                                          ug/L
PZ5B2-GW-047         N                   7/30/2007     CIS-1,2-DICHLOROETHENE               1.1            ug/L
PZ5B2-GW-047         N                   7/30/2007     TETRACHLOROETHENE                    9.8            ug/L
PZ5B2-GW-047         N                   7/30/2007     TOLUENE                                             ug/L
PZ5B2-GW-047         N                   7/30/2007     TRANS-1,2-DICHLOROETHENE                            ug/L
PZ5B2-GW-047         N                   7/30/2007     TRICHLOROETHENE                      3              ug/L
PZ5B2-GW-047         N                   7/30/2007     TRICHLOROFLUOROMETHANE               0.99           ug/L
PZ5B2-GW-047         N                   7/30/2007     VINYL CHLORIDE                                      ug/L
PZ5B-GW-047          N                   7/30/2007     1,1-DICHLOROETHANE                   5.9            ug/L
PZ5B-GW-047          N                   7/30/2007     1,1-DICHLOROETHYLENE                 0.61           ug/L
PZ5B-GW-047          N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5B-GW-047          N                   7/30/2007     1,2-DICHLOROETHANE                   0.68           ug/L
PZ5B-GW-047          N                   7/30/2007     1,2-DICHLOROPROPANE                  0.74           ug/L
PZ5B-GW-047          N                   7/30/2007     1,4-DICHLOROBENZENE                  3.4            ug/L
PZ5B-GW-047          N                   7/30/2007     BENZENE                              0.65           ug/L
PZ5B-GW-047          N                   7/30/2007     CHLOROBENZENE                                       ug/L
PZ5B-GW-047          N                   7/30/2007     CHLOROFORM                                          ug/L
PZ5B-GW-047          N                   7/30/2007     CIS-1,2-DICHLOROETHENE               59             ug/L
PZ5B-GW-047          N                   7/30/2007     TETRACHLOROETHENE                    76             ug/L
PZ5B-GW-047          N                   7/30/2007     TOLUENE                                             ug/L
PZ5B-GW-047          N                   7/30/2007     TRANS-1,2-DICHLOROETHENE             4.9            ug/L
PZ5B-GW-047          N                   7/30/2007     TRICHLOROETHENE                      30             ug/L
PZ5B-GW-047          N                   7/30/2007     TRICHLOROFLUOROMETHANE               1.2            ug/L
PZ5B-GW-047          N                   7/30/2007     VINYL CHLORIDE                       28             ug/L
PZ5C-GW-047          N                   7/30/2007     1,1-DICHLOROETHANE                                  ug/L
PZ5C-GW-047          N                   7/30/2007     1,1-DICHLOROETHYLENE                                ug/L
PZ5C-GW-047          N                   7/30/2007     1,2-DICHLOROBENZENE                                 ug/L
PZ5C-GW-047          N                   7/30/2007     1,2-DICHLOROETHANE                                  ug/L
PZ5C-GW-047          N                   7/30/2007     1,2-DICHLOROPROPANE                                 ug/L
PZ5C-GW-047          N                   7/30/2007     1,4-DICHLOROBENZENE                                 ug/L
PZ5C-GW-047          N                   7/30/2007     BENZENE                                             ug/L
PZ5C-GW-047          N                   7/30/2007     CHLOROBENZENE                                       ug/L
PZ5C-GW-047          N                   7/30/2007     CHLOROFORM                                          ug/L
PZ5C-GW-047          N                   7/30/2007     CIS-1,2-DICHLOROETHENE               0.51           ug/L
PZ5C-GW-047          N                   7/30/2007     TETRACHLOROETHENE                    8.4            u