REPORT ON AMBIENT ODOR MONITORING AT SOLID WASTE FACILITIES

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					REPORT ON AMBIENT ODOR MONITORING AT SOLID
                          WASTE FACILITIES




             Maine Department of Environmental Protection
                                     17 State House Station
                                Augusta, Maine 04333-0017


                                                April 2010
                     Report on Ambient Odor Monitoring at Solid Waste Facilities
                     Prepared by: Maine Department of Environmental Protection
                     Report Date: April 2010



                                                      TABLE OF CONTENTS

I. INTRODUCTION ................................................................................................................................1

II. BACKGROUND INFORMATION….................................................................................................1

III. AMBIENT ODOR MONITORING STUDY .....................................................................................1

     A.    Training ............................................................................................................................................1
     B.    Solid Waste Facility Selection .........................................................................................................2
     C.    Procedures ........................................................................................................................................2
     D.    Quality Control and Odor Data Assessment ....................................................................................2

IV. AMBIENT ODOR MONITORING AT OTHER SOLID WASTE FACILITIES ….. ..................3

     A. Odor Monitoring using the n-butanol Scale .....................................................................................3
     B. Odor Monitoring using Continuous Hydrogen Sulfide Monitors ....................................................3

V. CONCLUSIONS ….. ............................................................................................................................3

VI. RECOMMENDATIONS......................................................................................................................4


APPENDIX 1, Guidelines for Ambient Odor Monitoring Study at Solid Waste Facilities ..........................5
APPENDIX 2, Ambient Odor Study Monitoring Locations.......................................................................13
APPENDIX 3, Ambient Odor Study Log Results.......................................................................................14
APPENDIX 4, Status Report for Ambient Odor Monitoring Study ...........................................................24
APPENDIX 5, Ambient Odor Survey at CDD Waste Disposal Facility ....................................................30
APPENDIX 6, Ambient Odor Survey Log Results for Sludge Spreading and Storage Facility.................37
                Report on Ambient Odor Monitoring at Solid Waste Facilities
                Prepared by: Maine Department of Environmental Protection
                Report Date: April 2010



REPORT ON AMBIENT ODOR MONITORING AT SOLID WASTE FACILITIES


I.   INTRODUCTION

This report presents the results of an ambient odor monitoring study conducted at several
types of solid waste facilities in Maine. Staff from the Maine Department of
Environmental Protection (“Department”) conducted the study during 2008 and 2009.
The study was designed to determine the presence of odor, if any, at different types of
solid waste facilities, the best method(s) to use to quantify odor, and to aid in the
development of a nuisance odor standard.


II. BACKGROUND INFORMATION

The Department has identified rulemaking related to odor management as a high priority
task. Historically, the Department has regulated odor qualitatively by evaluating the site-
specific location, design and operation of a proposed solid waste facility to determine
whether or not it would cause a nuisance or an unreasonable adverse impact. As noted in
Report on Odor and Gas Management at Solid Waste Facilities1, this approach is
effective for many solid waste facilities, but has proven inadequate for facilities where
odors are more persistent, intense or unpleasant, and for facilities located in close
proximity to the general public.

As noted above, the odor data from this study will be used, in part, to develop a
quantitative nuisance odor standard to be applied at all solid waste disposal facilities
regulated under Maine’s Solid Waste Management Rules: General Provisions, 06-096
CMR 400 (last amended February 18, 2009).


III. AMBIENT ODOR MONITORING STUDY

A. Training

During 2007, Department staff received training in the fundamentals of odor from a firm
specializing in odor science and response. Once trained, four Department staff, with
varying odor sensitivities, were selected for the study based on the results of a sensitivity
screening. All staff were required to read and follow the guidelines outlined in Ambient
Odor Monitoring at Solid Waste Facilities2 (Appendix 1) and were required to read
relevant sections of the referenced operating manual(s) prior to participating in the study.

1
  Report on Odor and Gas Management at Solid Waste Facilities, prepared by Maine Department of
Environmental Protection, January 2009.
2
  Ambient Odor Monitoring at Solid Waste Facilities, prepared by Victoria Eleftheriou, reviewed by Carla
Hopkins, revised date June 16, 2008.


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                Report on Ambient Odor Monitoring at Solid Waste Facilities
                Prepared by: Maine Department of Environmental Protection
                Report Date: April 2010

B. Solid Waste Facility Selection

Solid waste facilities were selected based on their potential to cause nuisance odors based
on historical odor complaints, waste characterization (type of waste received) and/or
anecdotal evidence. A total of five facilities was selected and included a fish waste
compost facility, a municipal solid waste landfill, a wood waste processing facility, a
sludge compost facility, and an incineration facility. The location of the odor sites are
shown as Appendix 2.

C. Procedures

Ambient odor monitoring was conducted in general accordance with the guidelines
outlined in Ambient Odor Monitoring at Solid Waste Facilities3. Total Odor was
measured based on strength, intensity, character, and hedonic tone. Odor strength and
intensity were quantified using the Nasal Ranger® Field Olfactometer and a 5-point n-
butanol scale. Additional information related to the Nasal Ranger® Field Olfactometer
and the modified n-butanol scale can be found as part of Appendix 1. Odor quality was
reported using character descriptors and a scale that represents the pleasantness or
unpleasantness of an odor (“hedonic tone”). Additional information related to the
specific character descriptors and hedonic tone can be found as part of Appendix 1. Site-
specific meteorological data, if known, was noted including temperature, wind direction,
relative humidity, wind speed, barometric pressure, and general conditions such as cloud
cover.

Staff performed the first round of ambient odor monitoring between July 14 and 21, 2008
and the second round between January 26 and February 4, 2009. A summary of the
monitoring data is presented as Appendix 3. Actual field data logs and specific
monitoring locations are available upon request. The January/February monitoring round
was indicative of a time period when temperature inversions were more likely to occur
generally causing more significant dispersion of odors, if present.

D. Quality Control and Odor Data Assessment

As specified in the guidelines for Ambient Odor Monitoring at Solid Waste Facilities4, an
independent reviewer tabulated and evaluated the odor data. To the extent practicable,
data was correlated with actual meteorological conditions. Additionally, potential off-site
influences, as recorded by staff, were taken into consideration when evaluating the data.
A summary report5 was prepared and submitted at the conclusion of the first round of
monitoring (see Appendix 4). Preliminary conclusions and recommendations were
provided as part of the report.

3
  Ibid.
4
  Ibid.
5
  Ambient Odor Monitoring at Solid Waste Facilities – Status Report, prepared by Victoria Eleftheriou,
P.E., dated September 12, 2008.



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              Report on Ambient Odor Monitoring at Solid Waste Facilities
              Prepared by: Maine Department of Environmental Protection
              Report Date: April 2010

IV. AMBIENT ODOR MONITORING AT OTHER SOLID WASTE FACILITIES

A. Odor Monitoring using the n-butanol Scale

During February 2009, Department staff conducted an ambient odor monitoring survey
using the modified n-butanol scale at a construction and demolition debris waste disposal
facility experiencing odor complaints. The survey was conducted in order to obtain some
preliminary information regarding odors at, and surrounding, the facility. The survey
concluded that odors were detected both on-site and off-site. This ambient odor
monitoring survey is provided as Appendix 5.

During the 2008 monitoring round, an ambient odor survey was performed at a fish and
food waste compost facility and sludge spreading and storage facility. Staff did not
detect any odors at the compost facility during the monitoring event because active
composting was not taking place. Odor data was obtained from the sludge spreading and
storage facility and is included as Appendix 6. However, staff did not return for a second
round of monitoring due to a staff change that occurred after this monitoring event.
Other than this instance, staff on the odor panel remained consistent during the first and
second monitoring rounds.

Staff from the Department’s Sludge and Residuals Unit regularly uses the n-butanol scale
when responding to facility odor complaints. N-butanol test kits have been developed
and distributed to the Department’s central and regional offices for staff use.

B. Odor Monitoring using Continuous Hydrogen Sulfide Monitors

Hydrogen sulfide continues to be the most common odor-causing compound at solid
waste landfills in Maine. Since 2001, the Department has operated and maintained MDA
Scientific Single Point Monitors (“SPMs”) located near several solid waste landfills and
has evaluated hydrogen sulfide monitoring data from them on a regular basis. The SPMs
allow the Department to obtain real-time information related to actual concentrations
measured over specified time periods. The information is then used as a tool to design
and direct operational improvements to mitigate off-site odor. Information is also used to
corroborate facility odor complaints.


V. CONCLUSIONS

Based on the odor monitoring study, it is evident that the characterization of odor is
complex and odors can be variable. Despite this, a means and methodology can be
developed to successfully quantify odors with repeatable results. The following is a
summary of conclusions based on the study:

    •   Odor was evident at all types of solid waste facilities monitored.
    •   Odor was rarely evident at the facility property boundary.


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              Report on Ambient Odor Monitoring at Solid Waste Facilities
              Prepared by: Maine Department of Environmental Protection
              Report Date: April 2010

    •    In general, odor was almost always present at the waste handling areas.
    •    The Nasal Ranger® Field Olfactometer did not work well when odors were
         intermittent.
    •    The n-butanol scale was the preferred approach based on the unpredictable
         nature of odors.
    •    Odor character and hedonic tone were an important complement to odor strength
         and intensity especially when determining the origin of the odor and any
         potential off-site influences.
    •    Variation was evident between samplers; however, variation was less significant
         when odor was constant or of longer duration.
    •    Hydrogen sulfide monitoring at landfills provides a benefit to the facility and
         serves to direct operational improvements to mitigate odor.


VI. RECOMMENDATIONS

Odor can be successfully quantified with repeatable results using the modified n-butanol
scale. The modified scale, using five levels ranging from 1 to 5, is easy to use although
qualified personnel need to prepare it. The scale should continue to be used as needed at
solid waste facilities in order to refine its use and verify its repeatability. Because of the
complexities of odor characterization, the definition of nuisance odor should incorporate
the frequency, intensity, and duration of an odor. When determining the origin of the
potential odor, character descriptors similar to those used in this study, should be used.
SPM hydrogen sulfide data should be used to develop a nuisance odor standard at
landfills.




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        Report on Ambient Odor Monitoring at Solid Waste Facilities
        Prepared by: Maine Department of Environmental Protection
        Report Date: April 2010


APPENDIX 1 – Guidelines for Ambient Odor Monitoring Study
               at Solid Waste Facilities




                 Ambient Odor Monitoring
                 At Solid Waste Facilities



 Maine Department of Environmental Protection
 Bureau of Remediation and Waste Management
    Divisions of Solid Waste Management &
              Technical Services




                                                        Prepared by: Victoria Eleftheriou
                                                           Reviewed by: Carla Hopkins
                                                         Revised by: Victoria Eleftheriou




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             Report on Ambient Odor Monitoring at Solid Waste Facilities
             Prepared by: Maine Department of Environmental Protection
             Report Date: April 2010

1.0 APPLICABILITY:

This document is intended to be used as a guideline for the preliminary study of ambient odor at
solid waste facilities in Maine.


2.0 PURPOSE:

The purpose of this document is to outline a study to obtain ambient odor monitoring data at
solid waste facilities in Maine. Staff from the Maine Department of Environmental Protection,
Bureau of Remediation and Waste Management, Divisions of Solid Waste Management and
Technical Services [MEDEP/BRWM/DSWM&TS] will participate in the study. The monitoring
data will be used, in part, as a tool to aid in the development of a quantitative definition of
nuisance odor. Maine’s Solid Waste Management Rules: General Provisions, 06-096 CMR
400(4)(G) (last amended January 23, 2001) requires a solid waste facility to control nuisance
odors. MEDEP/BRWM/DSWM&TS will also use the data to respond to LD 1964, Resolve, To
Determine Appropriate Buffer Zones for Landfill Construction and Expansion. LD 1964 requires,
in part, the establishment of appropriate buffer zones to protect the public and nearby property
owners from the odor of landfills.


3.0 RESPONSIBILITIES:

All Staff must follow this study procedure when monitoring ambient odor at or near solid waste
facilities. Staff must read this procedure and relevant sections of the referenced operating
manual prior to initiating the odor study. All staff have received proper training in the
fundamentals of odor and received a certificate of completion by Tech Environmental of
Waltham, MA. Refresher training will be conducted by designated MEDEP staff prior to
initiating the odor study.


4.0 DEFINITIONS:

    4.1 Total Odor: mixture of odor causing compounds.
    4.2 Odor strength: quantitative measure of strength using a Nasal Ranger® Field
          Olfactometer.
    4.3 Nasal Ranger® Field Olfactometer: creates a calibrated series of discrete dilutions by
          mixing the odorous ambient air with odor-free (carbon) filtered air. Measured using
          “Dilution-to-Threshold” Ratio.
    4.4 Dilution-to-Threshold Ratio: measure of the number of dilutions needed to make the
          odorous ambient air non-detectable.
    4.5 Intensity: measure of the quality or condition of the odor. Measured using the modified
          n-butanol scale.
    4.6 Character: qualitative descriptor of odor.
    4.7 Hedonic Tone: subjective measure of the relative pleasantness or unpleasantness of
          an odor and is measured on a scale of -10 to +10 with 0 being neutral.




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            Report on Ambient Odor Monitoring at Solid Waste Facilities
            Prepared by: Maine Department of Environmental Protection
            Report Date: April 2010

5.0 PROCEDURES:

    5.1 Odor Measurement:
        • Note all known meteorological conditions including temperature, wind direction,
          precipitation information, cloud cover, relative humidity, barometric pressure, and
          wind speed prior to initiating each facility study. Meteorological data will be
          obtained from the closest weather station after the monitoring event if not obtained
          or available prior to monitoring.
        • Staff will commence the study at selected locations at or near each facility property
          boundary. Locations outside the property boundary will be selected and monitored
          if odor is present at the property boundary. If odor is not present at the property
          boundary staff will progress forward to a midpoint location between the property
          boundary and the areas known or suspected of causing nuisance odor. Staff will
          then monitor the targeted locations within the facility that are known or suspected
          of causing nuisance odor conditions.
          o Prevailing wind direction(s) and ease of access will be taken into consideration
               when selecting odor monitoring locations at or near the facility property
               boundary.
          o An aerial photograph of each facility will be distributed prior to the study.
          o Monitoring locations will be appropriately located by global positioning systems.
        • Total odor will be measured based on strength, intensity, character, and hedonic
          tone.
          o Measure and record odor strength using the Nasal Ranger® Field
               Olfactometer. All Staff have received proper training in the use of the
               Olfactometer according to the operating manual. The Nasal Ranger measures
               odor D/T values of 2, 4, 7, 15, 30, and 60.
          o Measure and record odor intensity using the n-butanol scale as follows:
               ▪ Modified n-butanol scale:
                   0 No Odor
                   1 Trace – very faint odor
                   2 Noticeable – faint but noticeable odor
                   3 Moderate – odorous and recognizable
                   4 Strong – intense odor
                   5 Very Strong – extremely strong odor
          o Record odor character using the descriptors and corresponding numbers
               developed by St. Croix Sensory Inc. attached as Appendix A.
          o Record hedonic tone using the scale of -10 to +10 with 0 being neutral. The +
               side of the scale indicates relative pleasantness while the – side of the scale
               indicates relative unpleasantness.
        • Note any known off-site influences that may contribute to nuisance odor conditions.
        • If odor is measured, note duration of odor event at a specific location as either of
          limited or ongoing duration.
        • Solid waste facilities were selected based on their potential to cause nuisance
          odors based on historical odor complaints, waste characterization, and/or
          anecdotal evidence.
        • Scheduled monitoring will occur at the solid waste facilities listed in Appendix B.
          Landfill, compost, sludge, and incinerator facilities will be included in the odor
          study.
        • A figure of the selected solid waste facilities is illustrated in Appendix C.



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            Report on Ambient Odor Monitoring at Solid Waste Facilities
            Prepared by: Maine Department of Environmental Protection
            Report Date: April 2010

        • To the extent practicable, ambient odor monitoring will be grouped by region.
        • To the extent practicable, at least two odor monitoring events should be conducted
          at each facility under different meteorological conditions. Several visits to each
          facility is preferred.

    5.2 Quality Control:
        • In order to represent an average range of odor, staff with varying odor sensitivities
          will be selected for the study based on the results of the sensitivity screening
          conducted by Tech Environmental on July 9, 2007 at MEDEP offices.
          o Four staff will be selected to participate in the odor study.
          o Each staff shall record ambient odor based on the designated procedure at
               each selected monitoring location.
        • Staff shall not discuss data with others during odor monitoring activities.
          Meteorological data may be shared prior to initiating odor monitoring at each
          facility.
        • Designated staff will maintain the Nasal Ranger® Field Olfactometer according to
          the operating manual.
        • N-butanol test kits have been prepared by MEDEP/BRWM Chemist according to
          the Odor Intensity Referencing Scale, Preparation of Samples for Static-Scale
          Method from Tech Environmental and ASTM E 544 – 99 (Reapproved 2004)
          Standard Practices for Referencing Suprathreshold Odor Intensity.
        • Sample ambient odor survey logs are attached as Appendix D.
          o Logs should be completed in entirety at each study location.
          o Notes including potential off-site influences and duration of odor, if present,
               should be placed in the comments section of the survey logs.
          o Staff will initial each ambient odor survey log once completed.

    5.3 Data Assessment:
        • Odor monitoring data should be tabulated by an independent reviewer.
        • To the extent practicable, data should be correlated with meteorological data.
        • Potential off-site influences should be taken into consideration when reviewing and
          tabulating data.
        • A summary report will be drafted for internal review.

6.0 REFERENCES:

    6.1 Fundamentals of Odor, Presented by Tech Environmental to MEDEP, July 9 & 10,
        2007.
    6.2 Nasal Ranger® Field Olfactometer, Operations Manual, Version 6, St. Croix Sensory,
        Inc., 2004.
    6.3 Odor Intensity Referencing Scale (OIRS), Preparation of Samples for Static-Scale
        Method, Tech Environmental.
    6.4 ASTM E 544 – 99 (Reapproved 2004) Standard Practices for Referencing
        Suprathreshold Odor Intensity.




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Report on Ambient Odor Monitoring at Solid Waste Facilities
Prepared by: Maine Department of Environmental Protection
Report Date: April 2010
                Appendix A – Odor Character




                                 Page 9 of 37
               Report on Ambient Odor Monitoring at Solid Waste Facilities
               Prepared by: Maine Department of Environmental Protection
               Report Date: April 2010


          Appendix B – Selected Solid Waste Facilities with Potential to Cause Nuisance Odors

Facility Name                        Type of Site           Location                 Region Project Manager Project Engineer
                                                                                                            (if applicable)
Bath                                 Landfill               Bath                     CMRO   Linda Butler     Amanda Wade
Hawk Ridge                           Compost                Unity Plantation         CMRO   Mark King        Victoria Eleftheriou
P.R. Russell, Inc.                   Processing             Richmond                 CMRO   William Butler
Coast of Maine                       Compost                Marion Township          EMRO   Rick Haffner     Steve Farrar
PERC                                 Incinerator            Orrington                EMRO   Cyndi Darling
PISD Carrier FarmSite1               Sludge                 Chapman                  NMRO   Jay Duncan
PISD Lathrop Road1                   Sludge                 Presque Isle             NMRO   Jay Duncan
Presque Isle2                        Landfill               Presque Isle             NMRO   Lou Pizzuti      David Burns
Kay-Ben Farm                         Compost                Gorham                   SMRO   Mike Clark

1
    Odor monitoring at the PISD sites is dependent on the spreading schedule.
2
    Odor monitoring at the Presque Isle Landfill is dependent on whether the PISD sites are monitored.




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  Report on Ambient Odor Monitoring at Solid Waste Facilities
  Prepared by: Maine Department of Environmental Protection
  Report Date: April 2010


Appendix C – Figure of Selected Solid Waste Facilities




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              Report on Ambient Odor Monitoring at Solid Waste Facilities
              Prepared by: Maine Department of Environmental Protection
              Report Date: April 2010


                                     Appendix D - MEDEP Ambient Odor Survey Log

Date:                                                 Meteorological Conditions:

Facility Name:

Name of Sampler:

   Location               Time           Concentration                Intensity     Character       Hedonic        Comments
                                                 (D/T)                  (1 to 5)    (use attached    Tone
                                                                                     descriptors)   (-10 to +10)




Sampler Initials:



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      Report on Ambient Odor Monitoring at Solid Waste Facilities
      Prepared by: Maine Department of Environmental Protection
      Report Date: April 2010


APPENDIX 2 – Ambient Odor Study Monitoring Locations




                                  Page 13 of 37
                Report on Ambient Odor Monitoring at Solid Waste Facilities
                Prepared by: Maine Department of Environmental Protection
                Report Date: April 2010
                                      APPENDIX 3 – Ambient Odor Study Log Results

                                                  Ambient Odor Study Log Results

    Date: July 14, 2008                                           Meteorological Conditions: Overcast, 75°F, Slight wind

    Facility Name: Eliot Batson Compost Facility

Sampler     Location       Time         Concentration            Intensity              Character            Hedonic          Comments
                                            (D/T)                 (1 to 5)            (use attached           Tone
                                                                                       descriptors)        (-10 to +10)
  A             1           1208                60                   4-5          Decay/Amine/Dead Fish         -7             Turning piles
  B             1           1206                15                    4                    Fishy                -6          Pile being worked
  C             1           1210                 7                    4                  Dead Fish              -5        Removing compost mix
  D             1           1208               30-60                  4                  Dead Fish              -6
  A             2           1224               15-30                 3-4          Woody/Decay/Dead Fish         -4
  B             2           1220                30                    3                    Fishy                -3          Pile being worked
  C             2           1224                 4                    3                  Dead Fish              -5
  D             2           1224               7-15                   3                    Fishy                -3
  A             3           1233                60                   4-5          Decay/Amine/Dead Fish         -9
  B             3           1230                30                    3                    Fishy                -3          Pile being worked
  C             3           1234                 2                    3                  Dead Fish              -5
  D             3           1234               30-60                 2-3                   Fishy                -2
  A             4           1245               7-15                   4           Putrid/Amine/Dead Fish        -8
  B             4           1241               7-15                  2-3                   Fishy                -2          Pile being worked
  C             4           1244                15                    2                    Septic               -4
  D             4           1245               15-30                  2             Woody/Dead Fish             -3
  A             5           1254                4-7                   2                 Musty/Septic            -2            Septage site
  B             5           1252                 2                   2-3                  Septage               -4
  C             5           1254                 2                    3                    Septic               -6
  D             5           1254                4-7                   2                    Septic               -4

 Range          1                              7-60                  4-5                                     -7 to -5
                2                              4-30                  3-4                                     -5 to -3
                3                              2-60                  2-5                                     -9 to -2
                4                              7-30                  2-4                                     -8 to -2
                5                               2-7                  2-3                                     -6 to -2
                                                                      Page 14 of 37
                      Report on Ambient Odor Monitoring at Solid Waste Facilities
                      Prepared by: Maine Department of Environmental Protection
                      Report Date: April 2010

      Date: July 18, 2008                                          Meteorological Conditions: Overcast, 70°F, Still Air

      Facility Name: Bath Landfill

Sampler      Location           Time         Concentration            Intensity               Character        Hedonic             Comments
                                                 (D/T)                 (1 to 5)             (use attached       Tone
                                                                                             descriptors)    (-10 to +10)
  A               1              816               15-30                   2              Rotten Eggs             -2          Variable, Not much wind
  B               1              813                 ND                    3            Hydrogen Sulfide          -2                Odor variable
  C               1              815                ND                     1              Rotten Eggs             -2               Fleeting odors
  D               1              817                ND                     3            Landfill Leachate         -4         Did not have constant odor
  A               2              831               30-60                   4              Rotten Eggs             -8              Slight SW breeze
  B               2              829                 30                    4                    NR                -6         Odor strong when present
  C               2              829                  7                    3              Rotten Eggs             -4
  D               2              829               30-60                   4            Landfill Leachate         -6
  A               3              857                7-15                   4          Garbage/Rotten Eggs/        -4        Odors change from garbage to
                                                                                             Musty                                  rotten eggs
  B               3              856                 15                    2                 Trash                -1
  C               3              900                 15                    4          Rotten Eggs/Garbage         -6               Fleeting odors
  D               3              900                <60                    4            Landfill Leachate         -6                Active area

 Range            1                                ND-30                  1-3                                  -4 to -2
                  2                                 7-60                  3-4                                  -8 to -4
                  3                                15-<60                 2-4                                  -6 to -1
      ND = non-detect




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                       Report on Ambient Odor Monitoring at Solid Waste Facilities
                       Prepared by: Maine Department of Environmental Protection
                       Report Date: April 2010

       Date: July 18, 2008                                          Meteorological Conditions: Hazy, Humid, 76°F, Slight wind

       Facility P.R. Russell

Sampler       Location          Time        Concentration Intensity                          Character        Hedonic            Comments
                                                    (D/T)               (1 to 5)             (use attached     Tone
                                                                                              descriptors)    (-10 to +10)
   A               1              1012               4-7                    3           Pine/Woody/Diesel         +5              Slight NE wind
   B               1              1010                2                     2              Wood Mulch             +2
   C               1              1012               ND                     1                   Pine              +2
   D               1              1012               2-4                    2                   Pine              +6
   A               2              1020              15-30                  2-3             Woody/Diesel           +5               Cedar smell
   B               2              1018                2                     3                  Cedar              +4         Intermittent odor strength
   C               2              1026                2                     2               Pine/Cedar            +2
   D               2              1026               4-7                    3                   Pine              +7
   A               3              1032               4-7                    3          Grassy/Swampy/Septic       -3              Detention pond
   B               3              1030               <2                     2                  Stale              -2            Sedimentation pond
   C               3              1035               ND                     2                  Musty              -1
   D               3              1035               4-7                    3              Pine/Manure            -1         Semi-manure type smell
   A               4              1046              15-30                   3               Pine/Woody            +3
   B               4              1045                2                     3                  Mulch              -3
   C               4              1045               15                     2                   Pine              +2
   D               4              1045              7-15                   3-4                Woody               +5

 Range             1                                 ND-7                  1-3                                  +2 to +6
                   2                                 2-30                  2-3                                  +2 to +7
                   3                                 ND-7                  2-3                                  -3 to -1
                   4                                 2-30                  2-4                                  -3 to +5
       ND = non-detect




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                       Report on Ambient Odor Monitoring at Solid Waste Facilities
                       Prepared by: Maine Department of Environmental Protection
                       Report Date: April 2010

       Date: July 21, 2008                                               Meteorological Conditions: Partly sunny, 72°F, Light NE wind, Humid

       Facility Name: Hawk Ridge Compost Facility

Sampler       Location           Time       Concentration Intensity                          Character        Hedonic             Comments
                                                    (D/T)               (1 to 5)             (use attached     Tone
                                                                                              descriptors)    (-10 to +10)
   A               1              838                 4-7                  1-2           Fecal/Manure/Urine        -2         Nearby cornfield smelled
   B               1              840                 <2                    1                  Sludge              -1              Spotty odor
   C               1              840                 ND                   <1                  Manure               0             Fleeting odors
   D               1              841                 ND                   1-2             Manure/Septic           -3
   A               2              852                 60                    3               Fecal/Septic           -7               Sludge odor
   B               2              850                 4-7                  3-4                  Fecal              -5        Strong odor but intermittent
   C               2              850                  7                    3            Fecal/Sewer/Musty         -5
   D               2              850                30-60                  3                  Septic              -4
   A               3              901                7-15                  3-4              Fecal/Septic           -7
   B               3              900                7-15                  2-3                  Fecal              -3              Fairly constant
   C               3              900                  2                    2            Fecal/Sewer/Musty         -5
   D               3              900                15-30                 3-4                 Septic              -4
   A               4              911                15-30                  3               Fecal/Septic           -7         Near screening operation
   B               4              910                7-15                  3-4                 Earthy              -4               By screener
   C               4              909                 ND                    2            Fecal/Sewer/Musty         -5
   D               4              913                7-15                   3                  Septic              -3

 Range             1                                ND-7                   <1-2                                  -3 to 0
                   2                                 4-60                   3-4                                  -7 to -4
                   3                                 2-30                   2-4                                  -7 to -3
                   4                                ND-30                   2-4                                  -7 to -3
       ND = non-detect




                                                                             Page 17 of 37
                      Report on Ambient Odor Monitoring at Solid Waste Facilities
                      Prepared by: Maine Department of Environmental Protection
                      Report Date: April 2010

       Date: July 21, 2008                                    Meteorological Conditions: Sunny 71°F, Winds 1-2 mph NNE, 31% Humidity

       Facility Name: PERC

Sampler      Location           Time       Concentration Intensity                          Character        Hedonic              Comments
                                                   (D/T)               (1 to 5)             (use attached     Tone
                                                                                             descriptors)    (-10 to +10)
   A              1              1101                 4-7                  2                   Garbage            -3
   B              1              1100                 <2                  1-2                   Trash             -1
   C              1              1100                  7                   2                Burnt/Garbage         -2
   D              1              1101               7-15                  2-3                  Garbage            -4
   A              2              1111               15-30                 3-4               Garbage/Putrid        -5        Metallic smell, variable wind
   B              2              1110                2-4                   2                 Trash/Musty          -1                Variable odor
   C              2              1111                  7                   2                Burnt/Garbage         -2
   D              2              1111                2-4                  2-3                  Garbage            -4        Constant odor from point 1-2
   A              3              1118                4-7                  2-3               Garbage/Putrid        -6        Metallic smell, variable wind
   B              3              1118                7-15                  3                  Unknown             -3
   C              3              1120                  4                   2                Burnt, Garbage        -2
   D              3              1120               7-15                  3-4                  Garbage            -3               Sweeter smell

 Range            1                                 <2-15                 1-3                                  -4 to -1
                  2                                 2-30                  2-4                                  -5 to -1
                  3                                 4-15                  2-4                                  -6 to -2




                                                                            Page 18 of 37
                      Report on Ambient Odor Monitoring at Solid Waste Facilities
                      Prepared by: Maine Department of Environmental Protection
                      Report Date: April 2010

         Date: January 26, 2009                                         Meteorological Conditions: Sunny, Very Cold, ~ -19°F

         Facility Name: Eliot Batson Compost Facility

Sampler Location Time                  Concentration             Intensity               Character             Hedonic        Duration        Comments
                                               (D/T)               (1 to 5)             (use attached           Tone
                                                                                         descriptors)          (-10 to +10)
  A               1          1053                ND                   3-4                   Amine                   -3          Steady
  B               1          1050                ND                   3-4                   Fishy                   -3        Intermittent
  C               1          1053                ND                    2              Amine, Dead Fish              -3         Transitory
  D               1          1056                ND                    1            Musty, Dead Fish, Mold,          2          Fleeting
                                                                                      Grass, Mushroom
  A               2          1106              15-30                   4                    Amine                   -5          Steady
  B               2          1100               ND                     4                    Fishy                   -5                       Downwind from pile
  C               2          1106                2                     3              Amine, Dead Fish              -3        Steady Faint
  D               2          1102                2                     4            Musty, Dead Fish, Mold,         -3
                                                                                      Grassy, Mushroom
  A               3          1114              15-30                   4               Amine, Manure                -4          Steady
  B               3          1114               2-4                   4-5                   Fishy                   -6                       Downwind between
                                                                                                                                                   pile
  C               3          1114                ND                    3               Amine, Dead Fish             -5        Steady Faint
                                                                                    Sewer, Musty, Dead Fish,
  D               3          1114                 2                    4            Mold, Grassy, Mushroom,         -4
                                                                                            Garbage
  A               4          1124                ND                    3             Amine, Musty, Manure           -5          Fleeting
  B               4          1124                ND                   2-3                 Fishy, Musty              -1                        Downwind of pile
  C               4          1124                ND                    2            Amine, Dead Fish, Burnt         -5        Steady Faint
                                                                                     Swampy, Musty, Dead                                      Field olfactometer
  D               4          1124                 4                    4              Fish, Mold, Grassy,           -2                       did not perform well
                                                                                           Mushroom                                                 in cold

 Range            1                             ND                    1-4                                        -3 to -2
                  2                            ND-30                  3-4                                        -5 to -3
                  3                            ND-30                  3-5                                        -6 to -4
                  4                            ND-4                   2-4                                        -5 to -1
         ND = non-detect



                                                                            Page 19 of 37
                      Report on Ambient Odor Monitoring at Solid Waste Facilities
                      Prepared by: Maine Department of Environmental Protection
                      Report Date: April 2010

         Date: February 2, 2009                                    Meteorological Conditions: 20°F, Winds SW 0-2 mph, 96% relative humidity,
                                                                   barometric pressure 29.88
         Facility Name: PERC

Sampler Location Time                  Concentration             Intensity               Character              Hedonic        Duration       Comments
                                               (D/T)               (1 to 5)             (use attached            Tone
                                                                                         descriptors)           (-10 to +10)
  A               1           945                 4                    2                    Garbage                  -2          Steady       Calm conditions
  B               1           943                ND                    2                Burnt, Garbage               -1
  C               1          943                 ND                    2             Burnt Plastic, Garbage          -3        Intermittent
  D               1          943                 ND                    2            Fecal, Decay, Leachate           -1
  A               2          1008                4-7                   3                    Garbage                  -3          Steady         Calm, cold
  B               2          1007                ND                   2-3                   Garbage                  -2
  C               2          1007                ND                   2-3               Garbage, Diesel              -4         Constant
                                                                                      Stale, Ashes, Amine,
  D               2          1007                ND                    3            Burnt, Chalk like, Decay,        -3        Sustained
                                                                                            Garbage
  A               3          1019                15                    4                Garbage, Rancid              -5          Steady        Tipping floor
  B               3          1019                ND                    3                    Garbage                  -2
  C               3          1019                 7                    4            Garbage, Burnt Plastic,          -6         Constant       Fairly intense
                                                                                              Burnt
  D               3          1019                15                    4             Yeast, Musky, Musty,            -1        Sustained
                                                                                          Grassy, Mold
  A               4          1035                 2                    2                    Garbage                  -2          Steady       Chemical odor
  B               4          1035                ND                    2                                                                      Unknown odor
  C               4          1035                 2                   2-3           Garbage, Resins, Burnt           -4         Constant
                                                                                            Rubber
  D               4          1035                 2                    2             Paint, Varnish, Vomit           -2        Sustained

 Range            1                            ND-4                    2                                          -3 to -1
                  2                            ND-4                   2-3                                         -4 to -2
                  3                            ND-15                  3-4                                         -6 to -1
                  4                            ND-2                   2-3                                         -4 to -2
         ND = non-detect




                                                                            Page 20 of 37
                      Report on Ambient Odor Monitoring at Solid Waste Facilities
                      Prepared by: Maine Department of Environmental Protection
                      Report Date: April 2010

         Date: February 2, 2009                                    Meteorological Conditions: Cloudy, 37°F, Winds S 1-2 mph

         Facility Name: Hawk Ridge Compost Facility

Sampler Location Time Concentration Intensity                                         Character               Hedonic         Duration          Comments
                                            (D/T)              (1 to 5)       (use attached descriptors)       Tone
                                                                                                              (-10 to +10)
   A            1          1211               ND                   2                  Fecal, Septic                -3            Fleeting       Odor dissipated
   B            1          1210               ND                  1-2                    Sludge                    -1          Intermittent
   C            1          1211               ND                   1              Fecal, Putrid, Sewer             -5            Fleeting       Odor dissipated
   D            1          1211               ND                  <1           Decay, Fecal, Septic, Sewer          0                            Odor quickly
                                                                                                                                                  dissipated
   A            2          1234               15                  3-4             Fecal, Septic, Sewer             -5             Steady
   B            2          1234                4                   3                     Sludge                    -5             Steady
   C            2          1234               ND                  2-3             Fecal, Putrid, Sewer             -5         Fairly constant
   D            2          1234                2                   3           Decay, Fecal, Septic, Sewer         -2           Sustained       Difficult detecting
                                                                                                                                                with olfactometer
   A            3          1246             15-30                  4              Fecal, Woody, Septic             -6            Steady
   B            3          1245               2                   3-4                     Earthy                   -3          Fluctuating       Intensity varies
   C            3          1246               2                   1-3               Sour, Spoiled milk             -5           Fleeting
                                                                               Ashes, Chalk like, Molasses,                  Mostly sustained
   D            3          1246               7                     3                  Woody, Pine                 -3
   A            4          1304               30                    4             Fecal, Septic, Sewer             -6             Steady
   B            4          1304               2                    >2                Earthy, Woody                  0          Fairly steady
   C            4          1304               4                    3                   Burnt, Fecal                -5         Fairly constant
   D            4          1304               4                    4              Grassy, Mold, Decay,             -1           Sustained
                                                                                        Cucumber
   A            5          1316               60                  >5              Fecal, Septic, Sewer            -10            Steady           Strong odor
   B            5          1315               15                  4-5                    Sludge                   -10            Steady
   C            5          1316               15                   5            Fecal, Putrid, Sewer, Sour        -10           Constant
   D            5          1316               7                    5               Septic, Sewer, Sour             -7

 Range          1                             ND                 <1-2                                             -5 to 0
                2                           ND-15                 2-4                                            -5 to -2
                3                            2-30                 1-4                                            -6 to -3
                4                            2-30                >2-4                                             -6 to 0
                5                            7-60                4->5                                           -10 to -7
         ND = non-detect
                                                                            Page 21 of 37
                      Report on Ambient Odor Monitoring at Solid Waste Facilities
                      Prepared by: Maine Department of Environmental Protection
                      Report Date: April 2010

         Date: February 4, 2009                                    Meteorological Conditions: 10°F, Light Snow, Winds NW 3-4 mph

         Facility P.R. Russell

Sampler Location Time Concentration Intensity                                            Character               Hedonic        Duration          Comments
                                             (D/T)               (1 to 5)                (use attached            Tone
                                                                                          descriptors)           (-10 to +10)
   A              1          858              7-15                   3                 Pine, Woody, Diesel           +3            Steady         Loader running
                                                                                                                                                     nearby
   B              1          858                2                    2                    Woody                      +1           Constant
   C              1          NR                ND                   2-3                Pine, Woody                   0          Fairly constant
   D              1          858               ND                    4            Woody, Pine, Solvent,              -1           Sustained
                                                                                   Vinegar, Disinfectant
   A              2          910               ND                    2          Pine, Woody, Putrid, Diesel          +3          Intermittent     Difficult to use
                                                                                                                                                   olfactometer
   B              2          910               ND                   2-3                      Woody                   +1            Variable
   C              2          910               ND                    1                    Pine, Woody                 0
   D              2          910                4                    3               Woody, Pine, Stale, Sour        +1
   A              3          926              7-15                  3-4                   Pine, Diesel               +4          Intermittent
   B              3          925               ND                    2                       Woody                   +2
   C              3          926                2                    3              Car Exhaust, Pine, Woody,         0         Fairly constant
                                                                                            Vinegar
   D              3          925                2                    3              Woody, Grain Silage, Pine,       +2
                                                                                              Sour
   A              4          944               ND                    3                    Pine, Diesel               +4          Intermittent     Difficult to use
                                                                                                                                                   olfactometer
   B              4          945               ND                    2                      Woody                    +2
   C              4          945                2                   2-3             Car Exhaust, Diesel, Pine,        0         Fairly constant
                                                                                            Woody
   D              4          945               ND                   NR              Woody, Pine, Disinfectant,       +3           Sustained       Difficult to use
                                                                                            Solvent                                                olfactometer

 Range            1                          ND-15                  2-4                                            -1 to +3
                  2                          ND-4                   1-3                                             0 to +3
                  3                          ND-15                  2-4                                             0 to +4
                  4                          ND-2                   2-3                                             0 to +4
         ND = non-detect


                                                                            Page 22 of 37
                      Report on Ambient Odor Monitoring at Solid Waste Facilities
                      Prepared by: Maine Department of Environmental Protection
                      Report Date: April 2010

         Date: February 4, 2009                          Meteorological Conditions: Partly Sunny, 15°F, Winds NNW 5 mph

         Facility Name: Bath Landfill

Sampler Location            Time        Concentration Intensity                         Character              Hedonic        Duration          Comments
                                                (D/T)              (1 to 5)             (use attached           Tone
                                                                                         descriptors)          (-10 to +10)
   A              1          1046                4-7                  3-4           Garbage, Decay, Putrid,        -3             Steady
   B              1          1046                 4                   2-3                  Garbage                 -2           Constant
   C              1          1046                ND                   2-3            Garbage, Rotten Eggs          -3         Fairly constant
   D              1          1046                ND                    2            Garbage, Decay, Landfill       +1           Sustained
                                                                                           Leachate
   A              2          1056               30-60                  4                  Rotten Eggs              -4          Intermittent
   B              2          1056                 7                   >4                  Rotten Eggs              -6            Variable
   C              2          1056                15                    4                  Rotten Eggs              -7                           Variable intensity
   D              2          1056                30                    5                  Rotten Eggs              -3            Variable
   A              3          1107                2-4                  2-3             Rotten Eggs, Diesel,         NR          Intermittent     Odor dissipated
                                                                                           Garbage                                               then returned
   B              3          1107                NR                   2-3                 Rotten Eggs              NR          Intermittent
   C              3          1107                ND                    2                  Rotten Eggs              -2            Fleeting
   D              3          1107                ND                    4             Rotten Eggs, Landfill         -3            Variable
                                                                                           Leachate

 Range            1                             ND-7                  2-4                                        -3 to +1
                  2                             7-60                  4-5                                        -3 to -7
                  3                             ND-4                  2-4                                        -3 to -2
         ND = non-detect




                                                                            Page 23 of 37
              Report on Ambient Odor Monitoring at Solid Waste Facilities
              Prepared by: Maine Department of Environmental Protection
              Report Date: April 2010


 APPENDIX 4 – Status Report for Ambient Odor Monitoring Study
                                       STATUS REPORT

To:      Paula Clark, Director – Division of Solid Waste Management
From: Victoria Eleftheriou, P.E., Senior Environmental Engineer – Technical Services
Date:    September 12, 2008
Subject: Ambient Odor Monitoring at Solid Waste Facilities – Status Report
______________________________________________________________________

Please find below a status report regarding ambient odor monitoring at solid waste
facilities. Section 5.3 of the guidelines for Ambient Odor Monitoring at Solid Waste
Facilities, dated June 16, 2008, required that an independent reviewer tabulate the data
and draft a summary report. Staff comments have been incorporated in this draft report.
The overall goal of the study is to obtain data and information that will be used, in part,
as a tool to aid in the development of a quantitative definition of nuisance odor. Total
odor was measured based on strength, intensity, character, and hedonic tone. Facilities
were selected based on their potential to cause nuisance odors based on historical odor
complaints, waste characterization, and/or anecdotal evidence.

MEDEP staff performed the first round of ambient odor monitoring between July 14 and
21, 2008. A summary of the monitoring data is presented in Attachment 1.
Photographic documentation is presented in Attachment 2. Monitoring was conducted in
general accordance with the guidelines for Ambient Odor Monitoring at Solid Waste
Facilities, dated June 16, 2008. These guidelines are appended as Attachment 3 of this
report.

Odor monitoring occurred at the Eliot Batson Compost Facility, Bath Landfill, P.R.
Russell Processing Facility, Hawk Ridge Compost Facility, and Penobscot Energy
Recovery Company. A revised figure of odor sites is illustrated as Attachment 4. Odor
monitoring was not conducted at the Presque Isle sites because the sludge spreading
activities did not coincide with the proposed dates of odor monitoring. Additionally, an
odor survey was not performed at the Kay-Ben Farm Compost Facility because only
finished compost was being stored at the facility. An odor monitoring survey occurred at
the Coast of Maine Compost Facility however staff did not detect any odors during the
monitoring event. Odor data and information obtained from the Brunswick Sewer District
Egypt Site in Bowdoinham is not included in this report due to a staff change that
occurred after this monitoring event. This data is available upon request and may be
used in the final evaluation report.

Odor strength and intensity was quantified using the Nasal Ranger® Field Olfactometer
and the n-butanol scale. Odor quality was reported using character descriptors and a
scale that represents the pleasantness or unpleasantness of an odor. Based on a
preliminary assessment of the data, it is evident that odor characterization is complex
and odors can be variable. The following is a preliminary assessment based on the first
round of ambient odor monitoring data and information.




                                           Page 24 of 37
              Report on Ambient Odor Monitoring at Solid Waste Facilities
              Prepared by: Maine Department of Environmental Protection
              Report Date: April 2010

Preliminary Conclusions

•   The Nasal Ranger® Field Olfactometer did not work well when odors were
    intermittent.
•   Odor character and hedonic tone was a worthwhile compliment to odor
    concentration and intensity.
•   Variation was evident between samplers however variation appeared to be less
    significant when odor was constant or of longer duration.
•   Staff indicated that the use of the n-butanol scale was the preferred approach based
    on the unpredictable nature of odors.

Preliminary Recommendations

•   Additional odor surveys should be conducted at the previously monitored solid
    waste facilities in order to obtain odor information over a range of operational and
    meteorological conditions.
•   As time allows, the duration of odor should be recorded at each monitoring point.
    Qualitative time descriptors could be used such as limited, intermittent, and
    prolonged duration.
•   Additional effort should be made to record all monitoring locations and information
    even when odor is not present along the facility property boundaries.

As noted above, additional odor surveys need to be completed. In conjunction with the
odor survey information, we have also compiled a preliminary list of states that have
specific odor laws, rules, and guidelines and are currently researching other entities that
have established specific odor rules. For example, the City of Biddeford has established
specific odor monitoring guidelines including a quantitative odor intensity standard that
must be met by the Maine Energy Recovery Company as a condition of their waste
handling agreement. This research along with the ambient odor monitoring data and
information should help us to establish a meaningful quantitative standard for nuisance
odor. We expect that our next round of odor surveys should take place during the
fall/winter months when temperature inversions are more likely to occur. In the
meantime, please feel free to contact us with any questions or comments.




Pc: Stephen Bates – Division of Solid Waste Management
    David Burns, P.E. – Division of Technical Services
    Aaron Dumont – Division of Solid Waste Management
    Rick Haffner – Division of Solid Waste Management
    Carla Hopkins – Division of Solid Waste Management


                                           Page 25 of 37
Report on Ambient Odor Monitoring at Solid Waste Facilities
Prepared by: Maine Department of Environmental Protection
Report Date: April 2010



               Attachment 1 - MEDEP Ambient Odor Survey Log Results




Note: This Attachment not included. See Appendix 3 of this Report.




                                                      Page 26 of 37
       Report on Ambient Odor Monitoring at Solid Waste Facilities
       Prepared by: Maine Department of Environmental Protection
       Report Date: April 2010
                       Attachment 2 – Photographs
       Project Name: MEDEP Odor Study
       Location: Brunswick Sewer District Egypt Facility
       Date: July 1, 2008
       Photographs Taken By: Mark King




   conducting odor survey                                            n-butanol scale




     using n-butanol scale                               Nasal Ranger® Field Olfactometer




Nasal Ranger® Field Olfactometer


                                       Page 27 of 37
        Report on Ambient Odor Monitoring at Solid Waste Facilities
        Prepared by: Maine Department of Environmental Protection
        Report Date: April 2010


                                     Attachment 3




                     Ambient Odor Monitoring
                     At Solid Waste Facilities



   Maine Department of Environmental Protection
   Bureau of Remediation and Waste Management
      Divisions of Solid Waste Management &
                Technical Services




Note: This Attachment not included. See Appendix 1 of this
                        Report.




                                                                 Prepared by: Victoria Eleftheriou
                                                                    Reviewed by: Carla Hopkins
                                                                  Revised by: Victoria Eleftheriou
                                                                    Revised date: June 16, 2008



                                        Page 28 of 37
  Report on Ambient Odor Monitoring at Solid Waste Facilities
  Prepared by: Maine Department of Environmental Protection
  Report Date: April 2010


Attachment 4 – Figure of Selected Solid Waste Facilities




                                  Page 29 of 37
             Report on Ambient Odor Monitoring at Solid Waste Facilities
             Prepared by: Maine Department of Environmental Protection
             Report Date: April 2010


   APPENDIX 5 – Ambient Odor Monitoring Survey at CDD Waste
                      Disposal Facility
                                         MEMORANDUM

To:    William Butler, Environmental Specialist – Division of Solid Waste Management
From:  Victoria Eleftheriou, P.E., Senior Environmental Engineer – Technical Services
Date:  February 13, 2009
       Mid-Coast Solid Waste Corporation (MCSWC) – Jacob’s Quarry
Subject:
       Ambient Odor Monitoring Study – February 9, 2009
       Technical Services Log Numbers 19107.4 &
       MEDEP Project Number S-7829-WH
______________________________________________________________________________

Please find attached an Ambient Odor Monitoring Report (Report) from the odor survey
conducted at the Jacob’s Quarry Landfill on February 9, 2009 by MEDEP staff. It is my
understanding that the odor survey was conducted in order to obtain some preliminary
information regarding reported odors at the Jacob’s Quarry Landfill and surrounding
neighborhood. The Report indicates that odors were detected both on-site and off-site although
odors were variable and the subsequent characterization of the odors was problematic primarily
due to wind conditions at the time of monitoring.

Since odors were evident outside the solid waste facility property boundary at the time of
monitoring, we recommend that MCSWC take actions to mitigate the potential for further off-
site odor impacts. We have some conceptual ideas about possible actions and would welcome
the opportunity to discuss the concepts with MCSWC in the near future.


Please see me if you have any questions.




Pc: Richard Heath, project hydrogeologist


                                             Page 30 of 37
              Report on Ambient Odor Monitoring at Solid Waste Facilities
              Prepared by: Maine Department of Environmental Protection
              Report Date: April 2010

                            AMBIENT ODOR MONITORING REPORT

Completed By: Victoria Eleftheriou, P.E., Senior Environmental Engineer – Technical Services
Date:         February 13, 2009
Subject:      Mid-Coast Solid Waste Corporation (MCSWC) – Jacob’s Quarry
              Ambient Odor Monitoring
              MEDEP Project Number S-7829-WH
____________________________________________________________________________

Please find below a report of the results of the ambient odor monitoring survey conducted at the
Jacob’s Quarry Landfill and surrounding neighborhood on February 9, 2009. The odor survey
was completed by MEDEP staff in general accordance with the guidelines established by
Ambient Odor Monitoring at Solid Waste Facilities, dated June 16, 2008. These guidelines are
appended as Attachment 1 of this report. The overall goal of the study was to obtain some
preliminary information regarding reported odors at the Jacob’s Quarry Landfill and in the
surrounding neighborhood. Odor monitoring locations were selected based on the
meteorological conditions at the time of monitoring, historical odor complaints, and
topographical information. Ambient odor monitoring locations are shown in Attachment 2.

Total odor was measured based on strength, intensity, character, and hedonic tone. Odor
strength and intensity was quantified using the Nasal Ranger® Field Olfactometer and the
n-butanol scale. Odor quality was reported using character descriptors and a scale that
represents the pleasantness or unpleasantness of an odor.

MEDEP staff commenced the odor study at approximately 930 AM. The data is tabulated in
Attachment 3 of this report. The observed meteorological conditions at the time of monitoring
are also noted. For comparison, the actual meteorological conditions recorded by a nearby
weather station at the Knox County Regional Airport in Rockland are illustrated in Attachment 4.
The meteorological conditions at the time of monitoring indicate northwest winds in the range of
10 to 13 miles per hour.

Odors were detected at the time of monitoring but were highly variable, most likely due to wind
conditions. All MEDEP staff noted that odors were intermittent. Because of this, a limited
amount of data was collected. MEDEP staff noted that the Nasal Ranger® Field Olfactometer
did not work well to quantify the odor. Odors that were detected but could not be measured due
to the intermittent nature of the odor are denoted as “NR” meaning that no reading was taken.
“NO” means that no odor was detected at the location by any MEDEP staff. A total of 8
locations were monitored (7 off-site and 1 on-site). Odors were detected at 4 of the off-site
locations and at the on-site location. Odors were measured at 2 of the off-site locations. At
these locations, odor intensity was variable with an average intensity in the 2 to 3 range (based
on a scale of 1 to 5). All MEDEP staff noted that the observed odor was in the unpleasant
range with a similar “rotten egg” character. The off-site locations where odors were detected
were consistent with the wind direction at the time of monitoring.




                                              Page 31 of 37
        Report on Ambient Odor Monitoring at Solid Waste Facilities
        Prepared by: Maine Department of Environmental Protection
        Report Date: April 2010


                                     Attachment 1




                     Ambient Odor Monitoring
                     At Solid Waste Facilities



   Maine Department of Environmental Protection
   Bureau of Remediation and Waste Management
      Divisions of Solid Waste Management &
                Technical Services




Note: This Attachment not included. See Appendix 1 of this
                        Report.




                                                                 Prepared by: Victoria Eleftheriou
                                                                    Reviewed by: Carla Hopkins
                                                                  Revised by: Victoria Eleftheriou
                                                                    Revised date: June 16, 2008



                                        Page 32 of 37
       Report on Ambient Odor Monitoring at Solid Waste Facilities
       Prepared by: Maine Department of Environmental Protection
       Report Date: April 2010


Attachment 2 – Figure of Ambient Odor Monitoring Locations




                                    Page 33 of 37
                Report on Ambient Odor Monitoring at Solid Waste Facilities
                Prepared by: Maine Department of Environmental Protection
                Report Date: April 2010


                               Attachment 3 - MEDEP Ambient Odor Survey Log Results

    Date: February 9, 2009                                        Meteorological Conditions: Clear, Cold, ~ 15°F,
                                                                  Winds from North/Northwest
    Facility Name: MCSWC – Jacob’s Quarry

Sampler     Location         Time       Concentration            Intensity              Character          Hedonic          Comments
                                            (D/T)                 (1 to 5)            (use attached         Tone
                                                                                       descriptors)      (-10 to +10)
  A             1            950                4-7                   4                  Rotten               -2              Variable
                                                                                   Eggs/Septic/Sewer
  B             1            950                NR                    2               Rotten Eggs             -5             Intermittent
  C             1             950               NR                   1-2              Rotten Eggs             -1               Variable
  D             1             950               NR                   1-2          Garbage, Rotten Eggs        -3               Variable
  A             2            1018                2                    4                  Rotten               -3
                                                                                   Eggs/Septic/Sewer
  B             2            1018              7-15                   3            Rotten Eggs, Burnt         -6             Intermittent
  C             2            1020                2                   2-3              Rotten Eggs             -2               Variable
  D             2            1018               NR                   2-3          Garbage, Rotten Eggs        -3        More Intense, Variable
  -             3             NR
  -             4             NR
  -             5             NO                 -                     -                    -                 -                   -
  -             6             NO                 -                     -                    -                 -                   -
  -             7             NO                 -                     -                    -                 -                   -
  -             8             NR

 Range          1                             NR-7                   1-4                                   -5 to -1
                2                             NR-15                  2-4                                   -6 to -2
    NR = No Readings Taken
    NO = No Odor




                                                                      Page 34 of 37
Report on Ambient Odor Monitoring at Solid Waste Facilities
Prepared by: Maine Department of Environmental Protection
Report Date: April 2010


              Attachment 4 – Meteorological Data




                                    Page 35 of 37
Report on Ambient Odor Monitoring at Solid Waste Facilities
Prepared by: Maine Department of Environmental Protection
Report Date: April 2010


     Attachment 4 – Meteorological Data, Continued




                                    Page 36 of 37
                   Report on Ambient Odor Monitoring at Solid Waste Facilities
                   Prepared by: Maine Department of Environmental Protection
                   Report Date: April 2010

         APPENDIX 6 – Ambient Odor Survey Log Results for Sludge Spreading and Storage Facility
                                               MEDEP Ambient Odor Survey Log Results
    Date: July 1, 2008                                                Meteorological Conditions: Sunny, humid, ~74° F, slight SW wind

    Facility Name: BSD Egypt Site, Bowdoinham

Sampler       Location         Time         Concentration            Intensity               Character            Hedonic         Comments
                                                (D/T)                 (1 to 5)             (use attached           Tone
                                                                                            descriptors)        (-10 to +10)
  A                1            859                 ND                   0-1                     Fecal               -1               Fleeting
  B                1            845                 ND                   <1                      Earthy               0        Fleeting odor, upwind
  C                1            848                 ND                    0                       NA                  0
  D                1            850                 ND                    0                       NA                  0            No wind, still
  A                2            910                 30                    2                      Fecal               -5           Very little wind
  B                2            904                 30                    2                      Fecal               -3        Fleeting odor, upwind
  C                2            909                  2                    1                      Fecal               -2        Sludge smell, fleeting
  D                2            919                 ND                   2-3             Fecal, Mold, Swampy,     -5 to -3
                                                                                                 Burnt
  A                3            938                 ND                   4-5                     Fecal               -7              Odor lost
  B                3            935                 ND                    3                      Fecal               -3           Odor dispersed
  C                3            936                 ND                    2                      Fecal               -3         Fleeting, wind shift
  D                3            942                 ND                    4              Fecal, Mold, Swampy,        -5          20 feet from pad
                                                                                                 Burnt
  A                4            950                 30                   4-5                     Fecal               -8               On pad
  B                4            948                <60                   3-4                     Fecal               -5           Constant odor
  C                4            950                ND                     3                  Burnt, Fecal            -5              Fleeting
  D                4            950                ND                     4              Fecal, Mold, Swampy,        -5        Within 3.5 feet of pad
                                                                                                 Burnt

 Range             1                              ND-30                 0-1                                        -1 to 0
                   2                              ND-30                 1-3                                       -5 to -2
                   3                                ND                  2-5                                       -7 to -3
                   4                             ND-<60                 3-5                                       -8 to -5
    Note: Only sludge storage occurring at facility, covers placed over piles for odor control.
    ND = non-detect


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