Massachusetts Department of Environmental Protection
Source Water Assessment and Protection (SWAP) Report
Bellingham DPW Water & Sewer Division
What is SWAP?
Table 1: Public Water System Information
The Source Water Assessment
Protection (SWAP) program,
established under the federal PWS Name Bellingham DPW Water & Sewer Division
Safe Drinking Water Act, requires
PWS Address 26 Blackstone Street
every state to:
• inventory land uses within the City/Town Bellingham, Massachusetts
recharge areas of all public PWS ID Number 2025000
water supply sources;
• assess the susceptibili ty of
Local Contact Paul Bokoski
drinking water sources to Phone Number (508) 966-5816
contamination from these land
• publicize the results to provide
support for improved protection.
We are all concerned about the quality of the water we drink. Drinking
Susceptibility and Water water wells may be threatened by many potential contaminant sources,
Quality including storm runoff, road salting, and improper disposal of hazardous
materials. Citizens and local officials can work together to better protect
Susceptibility is a measure of a these drinking water sources.
water supply’s potential to become
contaminated due to land uses and Purpose of this report:
activities within its recharge area. This report is a planning tool to support local and state efforts to improve
water supply protection. By identifying land uses within water supply
A source’s susceptibility to
protection areas that may be potential sources of contamination, the
contamination does not imply poor
assessment helps focus protection efforts on appropriate best
management practices (BMPs) and drinking water source protection
Water suppliers protect drinking measures.
water by monitoring for more than
100 chemicals, disinfecting, Refer to Table 3 for Recommendations to address potential sources of
filtering, or treating water contamination. Department of Environmental Protection (DEP) staff are
supplies, and using source available to provide information about funding and other resources that
protection measures to ensure may be available to your community.
that safe water is delivered to the
This report includes the following sections:
Actual water quality is best
1. Description of the Water System
reflected by the results of regular
2. Land Uses within Protection Areas
water tests. To learn more about
3. Source Water Protection Conclusions and Recommendations
your water quality, refer to your
water supplier’s annual C onsumer
February 26, 2002 Source Water Assessment and Protection Report Page 1
What is a Protection Section 1: Description of the Water System
A well’s water supply protection
Zone II #: 21 Susceptibility: High
area is the land around the well Well Names Source IDs
where protection activities
should be focused. Each well Well #1 2025000-01G
has a Zone I protective radius
Well #2 2025000-02G
and a Zone II protection area.
Well #3 2025000-03G
Well #4 2025000-04G
Well #11 2025000-11G
Zone II #: 258 Susceptibility: High
Well Names Source IDs
Well #5 2025000-05G
Zone II #: 134 Susceptibility: High
Well Names Source IDs
Well #7 2025000-07G
Aquifer: An underground water-
bearing layer of permeable Well #8 2025000-08G
material that will yield water in a
usable quantity to a well.
Zone II #: 125 Susceptibility: High
Hydrogeologic Barrier: An
underground layer of Well Names Source IDs
impermeable material (i.e. clay)
Well #12 2025000-12G
that resists penetration by
Of the fourteen wells for Bellingham DPW Water and Sewer, wells
Recharge Area: The surface #1,2,3,4,11,13,14,15,17, 18 and 19 are located south of Route 140, and east of
area that contributes water to a Route 126, in the Town of Bellingham. The Zone 11 extends into Franklin and
well. Wrentham. Well #7 and 8 are also located south of Route 140, but east of
Interstate 495. The Zone 11 extends into Milford, and Medway. Wells #5 and
Zone I: The area closest to a 12 are both located southeast of Interstate 495, but northeast of Route 140. Each
well; a 100 to 400 foot radius well has a Zone I of 400 feet. The wells are located in an aquifer with a high
proporti onal to the well’s pumping vulnerability to contamination due to the absence of hydrogeologic barriers (i.e.
rate. This area should be owned clay) that can prevent contaminant migration. Please refer to the attached map to
or controlled by the water view the boundaries of the Zone II.
supplier and limited to water
supply activities. All wells have potassium hydroxide added for corrosion control, and the water
from wells #7 and 8 go through filtration. For current information on monitoring
Zone II: The primary recharge results and treatment and a copy of the most recent Consumer Confidence
area for the aquifer. This area is Report, please contact the Public Water System contact person listed above in
defined by hydrogeologic studies Table 1. Drinking water monitoring reporting data are also available on the web
that must be approved by DEP. at http://www.epa.gov/safewater/ccr1.html.
Refer to the attached map to
determine the land within your
February 26, 2002 Source Water Assessment and Protection Report Page 2
Section 2: Land Uses in the Protection Areas
The Zone IIs for Bellingham are a mixture of residential, commercial, and
light industrial land uses (refer to attached map for details). Land uses and Benefits
activities that are potential sources of contamination are listed in Table 2,
of Source Protection
with further detail provided in the Table of Regulated Facilities and Table of
Underground Storage Tanks in Appendix B.
Source Protection helps protect
public health and is also good for
Key Land Uses and Protection Issues include:
1. Inappropriate activities in Zone I
2. Residential land uses
3. Transportation corridors • Protects drinking water quality at
4. Hazardous materials storage and use the source
5. Oil or hazardous material contamination sites
• Reduces monitoring costs through
6. Comprehensive wellhead protection planning
the DEP Waiver Program
7. Agricultural activities
• Treatment can be reduced or
The overall ranking of susceptibility to contamination for the system is high, avoided entirely, saving treatment
based on the presence of at least one high threat land use within the water costs
supply protection areas, as seen in Table 2.
• Prevents costly contamination
1. Inappropriate Activities in Zone Is – The Zone I for each of the wells is a clean-up
400 foot radius around the wellhead. Massachusetts drinking water
regulations (310 CMR 22.00 Drinking Water) requires public water suppliers • Preventing contamination saves
to own the Zone I, or control the Zone I through a conservation restriction. costs on water purchases, and
The fourteen (14) Zone Is for the wells are not owned or controlled by the expensive new source development
public water system. Only water supply activities are allowed in the Zone I.
However, many public water supplies were developed prior to the
Department's regulations and contain non water supply activities such as Contact your regional DEP office
homes and public roads. The following non water supply activities occur in for more information on Source
the Zone Is of the system wells: Protection and the Waiver
Activities in Zone 1s:
Wells #1 & #2 - There is horse riding activities, a stream and a dirt Bike path
runing through their Zone 1s
Well #3 - A private home, a septic system,
and Aboveground Storage Tank and some
parking ares are located within the Zone 1.
Well #4, #7 and #8 - These wells just have
a stream running through their Zone Is. A
Transmission—Line –Right of Way runs
through the Zone I of #7.
Well #5 - A local road runs through the
Well #12 - This well has a dirt bike path
running through the Zone 1.
Zone I Recommendations:
ü To the extent possible, remove all non
water supply activities from the Zone Is
to comply with DEP’s Zone I
ü Use BMPs for the storage, use, and
disposal of hazardous materials such as
water supply chemicals and
February 26, 2002 Source Water Assessment and Protection Report Page 3
ü Do not use road salt within the Zone I.
ü Keep any new non water supply activities out of the Zone I.
2. Residential Land Uses – Approximately 32% of the Zone II consists of What are "BMPs?"
residential areas. Some of the areas have public sewers, and some use septic
systems. If managed improperly, activities associated with residential areas can Best Management Practices (BMPs)
contribute to drinking water contamination. Common potential sources of are measures that are used to
contamination include: protect and improve surface water
• Septic Systems – Improper disposal of household hazardous chemicals to and groundwater quality. BMPs can
septic systems is a potential source of contamination to the groundwater be structural, such as oil & grease
because septic systems lead to the ground. If septic systems fail or are not trap catch basins, nonstructural,
properly maintained they can be a potential source of microbial such as hazardous waste collection
contamination. days or managerial, such as
employee training on proper
• Household Hazardous Materials - Hazardous materials may include
automotive wastes, paints, solvents, pesticides, fertilizers, and other
substances. Improper use, storage, and disposal of chemical products used
in homes are potential sources of contamination.
• Heating Oil Storage - If managed improperly, Underground and
Aboveground Storage Tanks (UST and AST) can be potential sources of
contamination due to leaks or spills of the fuel oil they store. For More Information
• Stormwater – Catch basins transport stormwater from roadways and
Contact Josephine Yemoh-Ndi in
adjacent properties to the ground. As flowing stormwater travels, it picks
DEP’s Worcester Office at (508)
up debris and contaminants from streets and lawns. Common potential
849-4030 for more information
contaminants include lawn chemicals, pet waste, and contaminants from
and assistance on improving current
automotive leaks, maintenance, washing, or accidents.
Residential Land Use Recommendations:
ü Educate residents on best management practices (BMPs) for protecting Copies of this report have been
water supplies. Distribute the fact sheet “Residents Protect Drinking provided to the public water
Water” available in Appendix A and on www.mass.gov/dep/brp/dws/ supplier, board of health, and the
protect.htm, which provides BMPs for common residential issues. town.
ü Work with planners to control new residential developments in the water
supply protection areas.
ü Promote BMPs for stormwater management
and pollution controls.
3. Transportation Corridors - Route 16, Route
109, Route 126 and I-495 run through the Zone IIs.
Local roads are common throughout the Zone II.
Roadway construction, maintenance, and typical
highway use can all be potential sources of
contamination. Accidents can lead to spills of
gasoline and other potentially dangerous
transported chemicals. Roadways are frequent sites
for illegal dumping of hazardous or other
potentially harmful wastes. De-icing salt,
automotive chemicals and other debris on roads
are picked up by stormwater and wash in to
Railroad tracks run through the Zone IIs of wells
#5, 7, 8 and 12. Rail corridors serving passenger or
freight trains are potential sources of
contamination due to chemicals released during
(Continued on page 7)
February 26, 2002 Source Water Assessment and Protection Report Page 4
Potential Source of Contamination vs. Actual Contamination
The activities listed in Table 2 are those that typically use, produce, or store contaminants of concern, which, if managed
improperly, are potential sources of contamination (PSC).
It is important to understand that a release may never occur from the potential source of contamination provided facilities
are using best management practices (BMPs). If BMPs are in place, the actual risk may be lower than the threat ranking
identified in Table 2. Many potential sources of contamination are regulated at the federal, state and/or local levels, to
further reduce the risk.
Table 2: Land Use in the Protection Areas (Zones I and II)
For more information, refer to Appendix B: Regulated Facilities within the Water Supply Protection Area
Activities Quantity Zone II # Threat* Potential Source of Contamination
Livestock Operations Few 21 M Manure (microbial contaminants): improper handling
Vehicle paints, solvents, and primer products: improper
Body Shops Two 21 H
21, 258 Over-application of pesticides: leaks, spills, improper
Cemeteries Two M
&134 handling; historic embalming fluids
Fertilizers or pesticides: over-application or improper
Golf Courses Two 21 M
Junk Yards and 258 Automotive chemicals, wastes, and batteries: spills, leaks,
Salvage Yards 21&125 or improper handling
Photographic chemicals: spills, leaks, or improper
Photo Processors One 134 H
handling or storage
Herbicides: over-application or improper handling; fuel
Railroad Tracks And
One 21 &125 H storage, transported chemicals, and maintenance
chemicals: leaks or spills
Engine fluids, lubricants, and solvents: spills, leaks, or
(Engine, Appliances, One 21 H
improper handling or storage
Sand And Gravel Heavy equipment, fuel storage, clandestine dumping:
One 21 M
Mining/Washing spills or leaks
Hazardous Materials Hazardous materials: spills, leaks, or improper handling
Two 21 H
Storage or storage
Industry/Industrial Industrial chemicals and metals: spills, leaks, or improper
One 21 H
Parks handling or storage
February 26, 2002 Source Water Assessment and Protection Report Page 5
Activities Quantity Zone II # Threat* Potential Source of Contamination
Fuel Oil Storage (at
Several 21 & 258 M Fuel oil: spills, leaks, or improper handling
Pesticides: over-application or improper storage and
Lawn Care / Gardening Several 21 & 258 M
Septic Systems / Hazardous chemicals: microbial contaminants, and
Several 21 & 258 M
Cesspools improper disposal
Aquatic Wildlife Two L Microbial contaminants
125 & 134
Fishing/Boating One 21 & 258 L Fuel and other chemical spills, microbial contaminants
Hazardous materials and waste: spills, leaks, or improper
Hazardous Waste One 21 H
handling or storage
Tier Classified Oil or Hazardous Materials Sites are not
Oil or Hazardous
Three 21 -- ranked due to their site-specific character. Individual sites
are identified in Appendix B.
Fuel oil, laboratory, art, photographic, machine shop, and
Schools, Colleges, and
One 134 M other chemicals: spills, leaks, or improper handling or
Hazardous materials and waste: spills, leaks, or improper
hazardous waste One 258 M
handling or storage
Stormwater Drains/ Debris, pet waste, and chemicals in stormwater from roads,
Several All L
Retention Basins parking lots, and lawns
21, 258 & Corridor maintenance pesticides: over-application or
Rights-of-Way Two L
134 improper handling; construction
Transportation 258 , 125 Fuels and other hazardous materials: accidental leaks or
Corridors & 134 spills; pesticides: over-application or improper handling
Four 134 H Stored materials: spills, leaks, or improper handling
Very Small Quantity
Hazardous materials and waste: spills, leaks, or improper
Hazardous Waste One 258 & 125 L
handling or storage
One 134 M Sludge and wastewater: improper management
See Table Notes on Page 7
February 26, 2002 Source Water Assessment and Protection Report Page 6
Table 2 Notes:
1. When specific potential contaminants are not known, typical potential contaminants or activities for that type of
land use are listed. Facilities within the watershed may not contain all of these potential contaminant sources, may
contain other potential contaminant sources, or may use Best Management Practices to prevent contaminants from
reaching drinking water supplies.
2. For more information on regulated facilities, refer to Appendix B: Regulated Facilities within the Water Supply
Protection Area information about these potential sources of contamination.
3. For information about Oil or Hazardous Materials Sites in your protection areas, refer to Appendix C: Tier Classi-
fied Oil and/or Hazardous Material Sites.
* THREAT RANKING - The rankings (high, moderate or low) represent the relative threat of each land use com-
pared to other PSCs. The ranking of a particular PSC is based on a number of factors, including: the type and quantity
of chemicals typically used or generated by the PSC; the characteristics of the contaminants (such as toxicity, environ-
mental fate and transport); and the behavior and mobility of the pollutants in soils and groundwater.
normal use, track maintenance, and accidents. Accidents can release spills of train
engine fluids and commercially transported chemicals.
Transportation Corridor Recommendations:
ü Identify stormwater drains and the drainage system along transportation
corridors. Work to better manage stormwater by pre -treating contaminated Top 5 Reasons to
stormwater and/or redirecting stormwater outside of the Zone II.
Develop a Local Wellhead
ü Work with the Town and State to have catch basins inspected, maintained,
and cleaned on a regular schedule. Street sweeping reduces the amount of Protection Plan
potential contaminants in runoff.
ü If storm drainage maps are available, review the maps with emergency Œ Reduces Risk to Human
response teams. If maps aren’t yet available, work with town officials to Health
investigate mapping options such as the upcoming Phase II Stormwater Rule
requiring some communities to complete stormwater mapping. • Cost Effective! Reduces or
ü Work with local emergency response teams to ensure that any spills within Eliminates Costs Associated
the Zone II can be effectively contained. With:
ü Work with local officials during their review of the railroad right of way w Increased groundwater
Yearly Operating Plans to ensure that water supplies are protected during monitoring and treatment
w Water supply clean up and
4. Hazardous Materials Storage and Use – Approximately 10 % of the land area
within the Zone II is commercial or industrial land uses. A few businesses and w Replacing a water supply
industries use hazardous materials, produce hazardous waste products, and/or w Purchasing water
store large quantities of hazardous materials in UST/AST. If hazardous materials
are improperly stored, used, or disposed, they become potential sources of Ž Supports municipal bylaws,
contamination. Hazardous materials should never be disposed of to a septic making them less likely to be
system or floor drain leading directly to the ground. challenged
Hazardous Materials Storage and Use Recommendations:
ü Educate local businesses on best management practices for protecting water
• Ensures clean drinki ng water
supplies. Distribute the fact sheet “Businesses Protect Drinking Water”
supplies for future generations
available in Appendix A and on www.mass.gov/dep/brp/dws/protect.htm,
which provides BMP’s for common business issues.
ü Work with local businesses to register those facilities that are unregistered • Enhances real estate values –
clean drinking water is a local
generators of hazardous waste or waste oil. Partnerships between businesses,
amenity. A community known
water suppliers, and communities enhance successful public drinking water
for its great drinking water in a
place people want to live and
ü Educate local businesses on Massachusetts floordrain requirements. See
businesses want to locate.
brochure “Industrial Floor Drains” for more information.
(Continued on page 9)
February 26, 2002 Source Water Assessment and Protection Report Page 7
Table 3: Current Protection and Recommendations
Protection Measures Status Recommendations
Follow Best Management Practices (BMP’s) that focus
Does the Public Water Supplier (PWS) on good housekeeping, spill prevention, and operational
own or control the entire Zone I? NO practices to reduce the use and release of hazardous
Is the Zone I posted with “Public Additional economical signs are available from the
Drinking Water Supply” Signs? YES Northeast Rural Water Association (802) 660-4988.
Continue daily inspections of drinking water protection
Is Zone I regularly inspected? YES areas.
Are water supply-related activities the Continue monitoring non-water supply activities in Zone
only activities within the Zone I? NO Is.
Municipal Controls (Zoning Bylaws, Health Regulations, and General Bylaws)
The Town does not have an “Aquifer Protection
Does the municipality have Wellhead District” bylaw that meets DEP’s wellhead protection
Protection Controls that meet 310 CMR NO requirements. Refer to www.state.ma.us/dep/brp/dws/ for
22.21(2)? model bylaws and health regulations, and current
Do neighboring communities protect the
Work with neighboring municipalities to include Zone
Zone II areas extending into their YES IIs in their wellhead protection controls.
Develop a wellhead protection plan. Follow “Developing
Does the PWS have a Wellhead
Protection Plan? NO a Local Wellhead Protection Plan” available at: www.
Augment plan by developing a joint emergency response
Does the PWS have a formal
plan with fire department, Board of Health, DPW, and
“Emergency Response Plan” to deal YES local and state emergency officials. Coordinate
with spills or other emergencies?
emergency response drills with local teams.
Establish committee; include representatives from
Does the municipality have a wellhead
protection committee? NO citizens’ groups, neighboring communities, and the
Does the Board of Health conduct For more guidance see “Hazardous Materials
inspections of commercial and YES Management: A Community's Guide” at www.state.ma.us/
industrial activities? dep/brp/dws/files/hazmat.doc
Does the PWS provide wellhead Aim additional efforts at commercial, industrial and
protection education? YES municipal uses within the Zone II.
February 26, 2002 Source Water Assessment and Protection Report Page 8
5. Presence of Oil or Hazardous Material Contamination Sites – The Zone IIs What is a Zone III?
contain DEP Tier Classified Oil and/or Hazardous Material Release Sites
indicated on the map as Release Tracking Numbers 2 -011235 and 2-010377. A Zone III (the secondary
Refer to the attached map and Appendix 3 for more information. recharge area) is the land
Oil or Hazardous Material Contamination Sites Recommendation: beyond the Zone II from which
ü Monitor progress on any ongoing remedial action conducted for the known surface and ground water drain
oil or contamination sites. to the Zone II and is often
coincident with a watershed
6. Agricultural Activites – A resident on Cross Street, within the Zone II of well boundary.
#1, 2, 3 and 4 owns a few horses. Horse manure and urine can be potential sources
The Zone III is defined as a
of microbial contamination if improperly managed.
secondary recharge area for
Recommendations: one or both of the following
ü Incorporate best management practices such as vegetated buffers to reduce reasons:
the risk of impaired water quality from non-water supply activities.
1. The low permeability of
7. Protection Planning – Currently, the Town does not have water supply underground water bearing
protection controls that meet DEP’s Wellhead Protection regulations 310 CMR materials in this area
22.21(2). Protection planning protects drinking water by managing the land area significantly reduces the
that supplies water to a well. A Wellhead Protection Plan coordinates community rate of groundwater and
efforts, identifies protection strategies, establishes a timeframe for potential contaminant flow
implementation, and provides a forum for public participation. There are into the Zone II.
resources available to help communities develop a plan for protecting drinking 2. The groundwater in this
water supply wells. area discharges to a surface
Protection Planning Recommendations: water feature such as a
ü Develop a Wellhead Protection Plan. Establish a protection team, and refer river, rather than
them to http://mass.gov/dep/brp/dws/protect.htm for a copy of DEP’s discharging directly into the
guidance, “Developing a Local Wellhead Protection Plan”. aquifer.
ü Coordinate efforts with local officials to compare local wellhead protection
controls with current MA Wellhead Protection Regulations 310 CMR 22.21 The land uses within the Zone
(2). If there are no local controls or they do not meet the current regulations, III are assessed only for
adopt controls that meet 310 CMR 22.21(2). For more information on DEP sources that are shown to be
land use controls see http://mass.gov /dep/brp/dws/protect.htm. groundwater under the direct
ü If local controls do not regulate floordrains, be sure to include floordrain influence of surface water.
controls that meet 310 CMR 22.21(2).
Other land uses and activities within the Zone IIs that are potential sources of
contamination are included in Table 2. Refer to Appendix B for more information
about these land uses. Identifying potential sources of contamination is an Additional Documents:
important initial step in protecting your drinking water sources. Further local
investigation will provide more in-depth information and may identify new land To help with source protection
uses and activities that are potential sources of contamination. Once potential efforts, more information is
sources of contamination are identified, specific recommendations like those available by request or online at
below should be used to better protect your water supply. mass.gov/dep/brp/dws including:
Section 3: Source Water Protection Conclusions and 1. Water Supply Protection
Recommendations Guidance Materials such as
model regulations, Best
Current Land Uses and Source Protection: Management Practice
As with many water supply protection areas, the system Zone IIs contain potential information, and general water
sources of contamination. However, source protection measures reduce the risk of supply protection information.
actual contamination, as illustrated in Figure 2. The water supplier is commended 2. MA DEP SWAP Strategy
for taking an active role in promoting source protection measures in the Water
Supply Protection Areas through: 3. Land Use Pollution Potential
• The employment of a GIS staff, and a knowledgeable and conscientious Matrix
operator and administrators. 4. Draft Land/Associated
• Providing outreach with the staff and teachers in the local schools. Contaminants Matrix
February 26, 2002 Source Water Assessment and Protection Report Page 9
Source Protection Recommendations:
To better protect the sources for the future:
ü Continue to inspect the Zone I regularly, and when feasible, remove any
DRINKING non-water supply activities.
ü Educate residents on ways they can help you to protect drinking water
ü Work with emergency response teams to ensure that they are aware of the
stormwater drainage in your Zone II and to cooperate on responding to spills
ü Partner with local businesses to ensure the proper storage, handling, and
disposal of hazardous materials.
ü Monitor progress on any ongoing remedial action conducted for the known
oil or contamination sites.
ü Develop a Wellhead Protection Plan.
AREA These recommendations are only part of your ongoing local drinking water
source protection. Additional source protection recommendations are listed in
Table 3, the Key Issues above and Appendix A.
DEP staff, informational documents, and resources are available to help you
build on this SWAP report as you continue to improve drinking water protection
in your community. The Department’s Wellhead Protection Grant Program and
Source Protection Grant Program provide funds to assist public water suppliers in
addressing water supply source protection through local projects. P rotection
recommendations discussed in this document may be eligible for funding under
the Grant Program. Please note: each spring DEP posts a new Request for
Response for the grant program (RFR).
Other grants and loans are available through the Drinking Water State Revolving
Loan Fund, the Clean Water State Revolving Fund, and other sources. For more
information on grants and loans, visit the Bureau of Resource Protection’s
Municipal Services web site at: http://mass.gov/dep/brp/mf/mfpubs.htm.
The assessment and protection recommendations in this SWAP report are
provided as a tool to encourage community discussion, support ongoing source
protection efforts, and help set local drinking water protection priorities. Citizens
and community officials should use this SWAP report to spur discussion of local
drinking water protection measures. The water supplier should supplement this
SWAP report with local information on potential sources of contamination and
land uses. Local information should be maintained and updated periodically to
reflect land use changes in the Zone IIs. Use this information to set priorities,
target inspections, focus education efforts, and to develop a long-term drinking
water source protection plan.
Section 4: Appendices
A. Protection Recommendations
B. Regulated Facilities within the Water Supply Protection Area
C. Table of Tier Classified Oil and/or Hazardous Material Sites within the
Water Supply Protection Areas
D. Additional Documents on Source Protection
February 26, 2002 Source Water Assessment and Protection Report Page 10
APPENDIX C – Table of Tier Classified Oil and/or Hazardous Material Sites
within the Water Supply Protection Areas
DEP’s datalayer depicting oil and/or hazardous material (OHM) sites is a statewide point
data set that contains the approximate location of known sources of contamination that
have been both reported and classified under Chapter 21E of the Massachusetts General
Laws. Location types presented in the layer include the approximate center of the site, the
center of the building on the property where the release occurred, the source of
contamination, or the location of an on-site monitoring well. Although this assessment
identifies OHM sites near the source of your drinking water, the risks to the source posed
by each site may be different. The kind of contaminant and the local geology may have
an effect on whether the site poses an actual or potential threat to the source.
The DEP’s Chapter 21E program relies on licensed site professionals (LSPs) to oversee
cleanups at most sites, while the DEP’s Bureau of Waste Site Cleanup (BWSC) program
retains oversight at the most serious sites. This privatized program obliges potentially
responsible parties and LSPs to comply with DEP regulations (the Massachusetts
Contingency Plan – MCP), which require that sites within drinking water source
protection areas be cleaned up to drinking water standards.
For more information about the state’s OHM site cleanup process to which these sites are
subject and how this complements the drinking water protection progr am, please visit the
BWSC web page at http://www.state.ma.us/dep/bwsc. You may obtain site -specific
information two ways: by using the BWSC Searchable Sites database at
http://www.state.ma.us/dep/bwsc/sitelist.htm, or you may visit the DEP regional office
and review the site file. These files contain more detailed information, including cleanup
status, site history, contamination levels, maps, correspondence and investigation reports,
however you must call the regional office in order to schedule an appointment to view the
The table below contains the list of Tier Classified oil and/or Hazardous Material Release
Sites that are located within your drinking water source protection area.
Table 1: Bureau of Waste Site Cleanup Tier Classified Oil and/or Hazardous Material
Release Sites (Chapter 21E Sites) - Listed by Release Tracking Number (RTN)
RTN Release Site Address Town Contaminant Type
2-11235 40 BRISSON BELLINGHAM OIL
2-10377 220 SOUTH MAIN ST. BELLINGHAM OIL/HAZ MAT
For more location information, please see the attached map. The map lists the release sites by RTN.