TRI Facilities
461
Very high
MA · EPA TRI · SDWIS · Superfund
Massachusetts environmental disclosure record
According to EPA's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List extracts, this is Massachusetts's full public registry profile, toxic releases, drinking-water systems, and Superfund sites in one place.
- TRI facilities
- 461
- Reported releases
- 18.3M lbs
- #46 of 56
- Water systems
- 564
- Superfund NPL sites
- 41
Massachusetts vs. every U.S. state
Cumulative TRI-reported release pounds, with this state marked in the national distribution
18M lbs 18th percentile higher than 18% of 56 states with TRI reporters
Each bar is a $1M-wide band; taller bars hold more states with TRI reporters. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
MA regulatory profile by statute
Violation/site counts mapped to the EPA statutes this portal tracks
- CWA · NPDES
- RCRA · Subtitle C 41
What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.
How Massachusetts compares across two EPA disclosure measures
The highlighted point is Massachusetts. The vertical axis is the share of tracked water systems with at least one health-based SDWIS record; the horizontal axis is TRI-reported pounds per facility on a logarithmic scale so the full state distribution stays readable. The crosshairs use the portal’s published national benchmark medians.
This matrix compares disclosure rates, not toxicity, exposure, current compliance, or drinking-water safety. A lower position on either axis is not a safety rating; use the underlying facility and water-system records for context.
According to EPA TRI, SDWIS, and Superfund NPL extracts, Massachusetts (MA) lists 461 TRI-reporting facilities disclosing 18.3M lbs of toxic releases. The same extracts list 41 Superfund sites and 564 EPA-regulated water systems, of which 236 carry health-based SDWIS violation rows. PlainEnviro's composite environmental health score for Massachusetts is 60/100 (grade D), benchmarked against all U.S. states on chemical release intensity, drinking-water health violations, Superfund site burden, and water violation rate. This is a percentile-derived composite from federal disclosure counts, not a clinical health-risk assessment.
D 60
Massachusetts Environmental Health Score
A percentile-benchmarked 0–100 composite from 4 EPA federal datasets, with weight redistribution for any unavailable dimension
Chemical Release Intensity A 95
40K (lbs per facility) Drinking Water Health Violations F 48
41.8% (% of systems) Superfund Site Burden F 13
8.9 (sites per 100 facilities) Water Violation Rate C 70
2.0 (violations per system) Benchmarks derived from EPA TRI, SDWIS, and Superfund NPL extracts across all 56 U.S. states and territories
Water Systems
564
Moderate
Superfund Sites
41
High
Total Releases
18.3M lbs
Moderate
Compliance Snapshot - MA
Sites with no recorded health violations 77.0%
Sites with at least one open violation 23.0%
Massachusetts's profile joins three independently maintained EPA programs into one statewide record: the Toxics Release Inventory (TRI, EPCRA Section 313 industrial disclosures), the Safe Drinking Water Information System (SDWIS, Safe Drinking Water Act compliance), and the Superfund National Priorities List. Each program uses its own reporting cadence and facility-identification scheme; PlainEnviro joins them by matched facility and system location rather than a shared federal ID, so a site absent from one program is never assumed absent from another. The counts below reflect the portal's rebuild as of August 2026.
Activity clusters in counties such as Worcester, Middlesex, Essex, which account for the highest combined facility, water-system, and Superfund presence. Monitoring and reporting violations are not included in the SDWIS counts shown here.
Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.
What does this state's environmental record show?
TRI Facilities
461
Water Systems
564
Superfund Sites
41
Health-Based Violation Records
1,140
Total Releases
18.3M lbs
cumulative, all reported years
Systems with Records
236
water systems
Release-over-release change
What changed for Massachusetts: EPA TRI 2023 reporting year
Same facilities, both years
+131.2%
348 facilities that filed in 2022 and 2023
Whole inventory
-0.4%
3.9 million lb → 3.9 million lb, every facility that filed
Between the two reporting years, 16 facilities filed for the first time and 32 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Massachusetts's land releases rose from 14.6 thousand lb in 2022 to 33.8 thousand lb in 2023, based on EPA TRI filings.
- Massachusetts's water releases fell from 6.8 thousand lb in 2022 to 4.3 thousand lb in 2023, based on EPA TRI filings.
- Massachusetts's air releases fell from 737.2 thousand lb in 2022 to 715.4 thousand lb in 2023, based on EPA TRI filings.
Largest Polluters
View all →Water Quality
Systems with Health Violations
| Water System | Population | Violations |
|---|---|---|
| TWIN OAKS MHP MIDLAND | 234 | 68 |
| CHERRY VALLEY/ ROCHDALE WATER DISTRICT | 3,696 | 48 |
| LONGMEADOW WATER DEPT | 15,853 | 36 |
| BOUMIL GROVE CONDOS | 72 | 35 |
| RAYMOND WOODS TOWNHOUSES | 50 | 32 |
| SPRINGFIELD WATER AND SEWER COMMISSION | 169,170 | 27 |
| MOUNT ST MARYS ABBEY | 60 | 26 |
| COUNTRY MANOR | 66 | 25 |
| MONROE WATER DISTRICT | 55 | 23 |
| BELLINGHAM DPW WATER SEWER DIVISION | 16,556 | 23 |
| DARTMOUTH WATER DIVISION | 24,696 | 22 |
| MONTROSE CONDOS | 210 | 22 |
| HANOVER WATER DEPT | 14,984 | 21 |
| MADDEN ESTATES | 50 | 20 |
| PLAINVILLE WATER DEPARTMENT | 8,805 | 20 |
| SWANSEA WATER DISTRICT | 17,375 | 20 |
| SOMERSET WATER DEPARTMENT | 18,303 | 18 |
| EAST LONGMEADOW DPW WATER DEPT | 16,358 | 16 |
| THREE RIVERS M H COMMUNITY | 63 | 16 |
| RUTLAND WATER DEPARTMENT | 6,025 | 14 |
| NORTH READING WATER DEPT. | 16,379 | 13 |
| CHESTER WATER DEPT | 750 | 12 |
| HOLLISTON WATER DEPARTMENT | 15,139 | 12 |
| MAYNARD DPW, WATER DIVISION | 10,616 | 12 |
| AGAWAM WATER DEPARTMENT | 28,692 | 10 |
| REVEL PELHAM | 123 | 10 |
| MELROSE WATER DIVISION (MWRA) | 29,938 | 9 |
| NORTON WATER DEPARTMENT | 19,161 | 9 |
| SCITUATE WATER DIVISION | 19,297 | 9 |
| MILL RIVER WATER TAKERS ASSOCIATION | 150 | 8 |
| MEDFORD WATER DEPT. (MWRA) | 61,700 | 8 |
| BROOKWOOD APARTMENTS | 44 | 7 |
| HOUSATONIC WATER WORKS | 1,391 | 7 |
| WESTMINSTER DEPARTMENT OF PUBLIC WORKS | 3,889 | 7 |
| BILLERICA WATER WORKS | 42,119 | 7 |
| CHELSEA WATER DEPT. (MWRA) | 40,787 | 7 |
| LOWELL REGIONAL WATER UTILITY | 120,418 | 7 |
| MALDEN WATER DIVISION (MWRA) | 66,263 | 7 |
| SOMERVILLE WATER DEPT. (MWRA) | 81,045 | 7 |
| STONEHAM WATER DEPT (MWRA SUPPLY) | 23,244 | 7 |
| GREAT BARRINGTON FIRE DIST | 4,380 | 6 |
| EVERETT WATER DEPT. (MWRA) | 49,075 | 6 |
| WESTON WATER DEPT. | 11,391 | 6 |
| FALMOUTH WATER DEPT | 97,551 | 6 |
| SOUTH DEERFIELD WATER SUPPLY DISTRICT | 3,800 | 5 |
| LEOMINSTER WATER DIVISION | 41,683 | 5 |
| CONCORD WATER DEPT | 18,788 | 5 |
| MILTON WATER DEPT. (MWRA) | 28,630 | 5 |
| REVERE WATER DIVISION (MWRA) | 62,186 | 5 |
| ROWLEY WATER DEPARTMENT | 6,161 | 5 |
| WAKEFIELD WATER DEPT | 27,090 | 5 |
| WALTHAM WATER DEPARTMENT | 65,218 | 5 |
| WILMINGTON WATER DEPT | 21,654 | 5 |
| WINTHROP WATER DIVISION, (MWRA) | 19,316 | 5 |
| ABINGTON/ROCKLAND JOINT WTR. WORKS | 33,387 | 5 |
| BROCKTON WATER DEPARTMENT | 105,788 | 5 |
| DIGHTON WATER DISTRICT | 5,280 | 5 |
| NORWOOD WATER DEPT. (MWRA) | 29,909 | 5 |
| LONG POND REALTY TRUST | 90 | 5 |
| WRENTHAM DEVELOPMENTAL CENTER | 937 | 5 |
| PINE VALLEY ESTATES | 40 | 5 |
| PALMER WATER DISTRICT NO.1 | 4,789 | 4 |
| REGENCY AT STOW CONDOMINIUMS | 132 | 4 |
| BELMONT WATER DEPT. (MWRA) | 27,442 | 4 |
| BROOKLINE WATER AND SEWER DIVISION | 63,191 | 4 |
| HAMILTON WATER DEPT | 7,674 | 4 |
| LEXINGTON WATER DEPT. (MWRA) | 34,074 | 4 |
| NAHANT WATER DEPT. (MWRA) | 3,334 | 4 |
| NEWTON WATER DEPT. (MWRA) | 88,931 | 4 |
| SAUGUS WATER DEPT. (MWRA) | 27,844 | 4 |
| SWAMPSCOTT WATER DEPT. (MWRA) | 15,300 | 4 |
| TEWKSBURY WATER DEPARTMENT | 31,342 | 4 |
| WATERTOWN DEPARTMENT OF PUBLIC WORKS | 35,985 | 4 |
| MCI BRIDGEWATER | 2,802 | 4 |
| FAIRHAVEN WATER DEPT | 15,155 | 4 |
| KINGSTON WATER DEPARTMENT | 14,715 | 4 |
| OLD LAWRENCE ROAD | 25 | 4 |
| NATURAL PARK APARTMENTS | 60 | 3 |
| AMHERST DPW WATER DIVISION | 39,263 | 3 |
| MEDFIELD WATER DEPT. | 12,713 | 3 |
| WHITINSVILLE WATER COMPANY | 7,899 | 3 |
| TORIA HEIGHTS CONDOMINIUM | 60 | 3 |
| STURBRIDGE WATER DEPARTMENT | 4,746 | 3 |
| UXBRIDGE DPW, WATER DIVISION | 11,612 | 3 |
| ANDOVER WATER DEPT | 36,569 | 3 |
| ARLINGTON WATER DEPT. (MWRA) | 46,308 | 3 |
| AQUARION WATER COMPANY (DOVER) | 1,929 | 3 |
| FRAMINGHAM WATER DEPT. (MWRA) | 72,362 | 3 |
| LYNNFIELD WATER DIST. (MWRA) | 4,820 | 3 |
| MANCHESTER BY THE SEA DPW | 5,201 | 3 |
| MARBLEHEAD WATER DEPT. (MWRA) | 20,441 | 3 |
| MERRIMAC WATER DEPARTMENT | 6,988 | 3 |
| NEEDHAM WATER DEPT | 31,664 | 3 |
| PEABODY WATER DEPT. | 54,481 | 3 |
| QUINCY WATER DEPT. (MWRA) | 106,000 | 3 |
| READING WATER DEPARTMENT (MWRA) | 26,262 | 3 |
| WOBURN WATER DEPT. | 40,876 | 3 |
| MARION WATER DIVISION | 6,119 | 3 |
| PEMBROKE WATER DIVISION DPW | 18,175 | 3 |
| WAREHAM FIRE DISTRICT | 20,102 | 3 |
Cities with Water Issues
Westborough
8 water systems
Carver
8 water systems
Millbury
7 water systems
Worcester
6 water systems
Boston
6 water systems
Milford
5 water systems
Pittsfield
5 water systems
Amesbury
5 water systems
Sudbury
5 water systems
Boylston
5 water systems
Stow
5 water systems
Tyngsborough
5 water systems
Andover
4 water systems
Bedford
4 water systems
Belchertown
4 water systems
Lunenburg
4 water systems
Plymouth
4 water systems
Berlin
4 water systems
Harvard
4 water systems
Rowley
4 water systems
Superfund Sites (41)
Cities with Environmental Records
Attleboro
14 facilities · 2 water systems
Worcester
11 facilities · 6 water systems
Chicopee
11 facilities · 2 water systems
Wilmington
11 facilities · 1 water systems
Leominster
10 facilities · 2 water systems
New Bedford
10 facilities · 2 water systems
Springfield
9 facilities · 3 water systems
Fall River
9 facilities · 1 water systems
Newburyport
9 facilities · 1 water systems
Taunton
9 facilities · 1 water systems
Woburn
8 facilities · 2 water systems
Peabody
8 facilities · 0 water systems
Lowell
7 facilities · 2 water systems
Andover
6 facilities · 4 water systems
Westfield
6 facilities · 2 water systems
Billerica
6 facilities · 1 water systems
Franklin
6 facilities · 1 water systems
Marlborough
6 facilities · 1 water systems
Stoughton
6 facilities · 1 water systems
North Billerica
6 facilities · 0 water systems
Frequently Asked Questions
How many TRI facilities are in Massachusetts? ▼
Massachusetts has 461 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 18.3M lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does Massachusetts have Superfund sites? ▼
Yes, Massachusetts has 41 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
What does EPA SDWIS list for drinking water in Massachusetts? ▼
Massachusetts has 564 EPA-regulated water systems in the Safe Drinking Water Information System (SDWIS) extract used here. 236 water systems have a health-based violation row (MCL exceedance) in this historical extract. A past registry row is not a current drinkability verdict. For current utility conditions, contact the local water utility or the Massachusetts drinking water program. Source: EPA SDWIS.
What environmental data is available for Massachusetts? ▼
PlainEnviro provides three categories of EPA environmental data for Massachusetts: Toxic Release Inventory (TRI) data covering 461 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 564 water systems, and Superfund National Priorities List (NPL) data for 41 contaminated sites.
How does Massachusetts compare to other states on EPA disclosure counts? ▼
Massachusetts has 461 TRI facilities with 18.3M lbs in total releases, 41 Superfund sites, and 1,140 water system violations on record. These are federal disclosure counts; they are not toxicity-weighted or population-adjusted risk scores. Source: EPA TRI, SDWIS, and Superfund NPL databases.
What is Massachusetts's environmental health score? ▼
PlainEnviro's composite environmental health score for Massachusetts is 60/100 (grade D). This score combines four percentile-benchmarked dimensions from EPA federal extracts: chemical release intensity per TRI facility, drinking-water health violation rate from SDWIS, Superfund site burden relative to industrial activity, and overall water violation rate. Scores are benchmarked against all 56 U.S. states and territories. When a dimension lacks data, its weight redistributes to the remaining dimensions so the score never deflates from missing inputs. This is a registry-count composite, not a clinical exposure or health-outcome assessment.
Explore More Data for Massachusetts
TRI Facilities in Massachusetts →
Every toxic-release facility reporting in the state, ranked by volume
Drinking Water Systems in Massachusetts →
Community water systems and their violation records
Air Quality in Massachusetts →
County-level AQI from EPA monitoring stations
Compare states by burden →
EJ screening scores for every U.S. county
State environmental rankings →
How states compare on releases, water and Superfund
Browse all states →
Environmental profiles for every U.S. state
About This Data
This page aggregates environmental data from three EPA programs for Massachusetts: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.
PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.
What to do with Massachusetts's data
Use this state profile as a starting point, then drill into the specific dataset that matters to you.
- Check the 461 TRI facilities reporting in Massachusetts for the largest reported releases near a specific county. View facilities
- 236 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
- See how Massachusetts compares to other states on releases, water violations, and Superfund sites. State rankings
Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.
Use and verify this record
Massachusetts's profile brings together EPA release, drinking-water, and Superfund records. It reports the underlying programs without making a health or environmental-risk determination.
State environmental figures are computed directly from EPA data. The methodology records the joins, definitions, and refresh cadence for each program.
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.