TRI Facilities
96
Moderate
ME · EPA TRI · SDWIS · Superfund
Maine environmental disclosure record
According to EPA's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List extracts, this is Maine's full public registry profile, toxic releases, drinking-water systems, and Superfund sites in one place.
- TRI facilities
- 96
- Reported releases
- 37.7M lbs
- #42 of 56
- Water systems
- 360
- Superfund NPL sites
- 16
Maine vs. every U.S. state
Cumulative TRI-reported release pounds, with this state marked in the national distribution
38M lbs 25th percentile higher than 25% 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
ME regulatory profile by statute
Violation/site counts mapped to the EPA statutes this portal tracks
- CWA · NPDES
- RCRA · Subtitle C 16
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 Maine compares across two EPA disclosure measures
The highlighted point is Maine. 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, Maine (ME) lists 96 TRI-reporting facilities disclosing 37.7M lbs of toxic releases. The same extracts list 16 Superfund sites and 360 EPA-regulated water systems, of which 115 carry health-based SDWIS violation rows. PlainEnviro's composite environmental health score for Maine is 51/100 (grade F), 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.
F 51
Maine Environmental Health Score
A percentile-benchmarked 0–100 composite from 4 EPA federal datasets, with weight redistribution for any unavailable dimension
Chemical Release Intensity F 58
393K (lbs per facility) Drinking Water Health Violations D 63
31.9% (% of systems) Superfund Site Burden F 5
16.7 (sites per 100 facilities) Water Violation Rate D 67
2.3 (violations per system) Benchmarks derived from EPA TRI, SDWIS, and Superfund NPL extracts across all 56 U.S. states and territories
Water Systems
360
Low
Superfund Sites
16
Moderate
Total Releases
37.7M lbs
Moderate
Compliance Snapshot - ME
Sites with no recorded health violations 74.8%
Sites with at least one open violation 25.2%
Maine'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 Cumberland, Penobscot, York, 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
96
Water Systems
360
Superfund Sites
16
Health-Based Violation Records
832
Total Releases
37.7M lbs
cumulative, all reported years
Systems with Records
115
water systems
Release-over-release change
What changed for Maine: EPA TRI 2023 reporting year
Same facilities, both years
-2.4%
71 facilities that filed in 2022 and 2023
Whole inventory
-3.0%
7.3 million lb → 7.1 million lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 7 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Maine's total reported releases fell from 7.3 million lb in 2022 to 7.1 million lb in 2023, based on EPA TRI filings.
- Maine's off-site transfers rose from 1.5 million lb in 2022 to 1.8 million lb in 2023, based on EPA TRI filings.
- Maine's water releases fell from 2.3 million lb in 2022 to 2.1 million lb in 2023, based on EPA TRI filings.
- Maine's air releases fell from 2.0 million lb in 2022 to 1.9 million lb in 2023, based on EPA TRI filings.
Largest Polluters
View all →Water Quality
Systems with Health Violations
| Water System | Population | Violations |
|---|---|---|
| MARS HILL AND BLAINE WATER COMPANY | 1,500 | 126 |
| LORING DEVELOPMENT AUTHORITY | 180 | 64 |
| LONG POND WATER DISTRICT | 308 | 58 |
| US COAST GUARD STATION-JONESPORT | 25 | 47 |
| UNITY BY THE STREAM LLC | 88 | 43 |
| SUGARLOAF WATER ASSOCIATION | 1,730 | 28 |
| ELLSWORTH WATER DEPARTMENT | 3,910 | 22 |
| JACKMAN UTILITY DISTRICT | 1,125 | 22 |
| VINALHAVEN WATER DISTRICT | 1,053 | 22 |
| JAY VILLAGE WATER DISTRICT | 975 | 18 |
| BOUDREAU TRAILER PARK | 50 | 15 |
| HEBRON WATER COMPANY | 83 | 14 |
| STONINGTON WATER COMPANY | 683 | 12 |
| ST. JOHN'S RIVER CLUB UTILITIES | 170 | 11 |
| POLAND COUNTRY VILLAGE MHP INC | 140 | 11 |
| CRYSTAL SPRING ESTATES | 65 | 10 |
| BERWICK WATER DEPARTMENT | 2,845 | 10 |
| SOUTH BERWICK WATER DISTRICT | 3,722 | 10 |
| WEST PARIS WATER DISTRICT | 540 | 10 |
| VILLAGE AT ROCKPORT #1 | 30 | 10 |
| SPINSFIELD COMMONS | 45 | 10 |
| HALLOWELL ROAD MOBILE HOME PARK | 25 | 10 |
| PITTSFIELD WATER DEPT | 3,228 | 9 |
| PASSAMAQUODDY WATER DISTRICT | 2,125 | 7 |
| GRAY WATER DISTRICT | 2,468 | 7 |
| GAELIC SQUARE HOUSING | 50 | 7 |
| SOUTHWEST HARBOR WATER & SEWER DISTRICT | 2,480 | 7 |
| HARMON PINES DEVELOPMENT | 50 | 7 |
| SUNRISE SERENITY TP | 38 | 7 |
| BUCKFIELD VILLAGE CORPORATION | 425 | 6 |
| CANTON WATER DISTRICT | 243 | 6 |
| SUNNY GABLES- GLENBURN HOUSING | 60 | 6 |
| LIVERMORE FALLS WATER DISTRICT | 2,995 | 6 |
| WALDOBORO WATER DEPT | 1,065 | 6 |
| BLUE HILL TERRACE | 60 | 6 |
| STONINGTON MANOR | 44 | 6 |
| HINGHAM HEIGHTS | 90 | 6 |
| LISBON WATER DEPARTMENT | 6,643 | 5 |
| MONSON UTILITIES DISTRICT | 298 | 5 |
| PIPER STREAM MOBILE HOME PARK | 75 | 5 |
| 322 ROOSEVELT TRAIL | 46 | 4 |
| NORTH BERWICK WATER DISTRICT | 2,125 | 4 |
| ST FRANCIS WATER DEPARTMENT | 100 | 4 |
| POND & POND TRAILER PARK | 63 | 4 |
| HANCOCK VILLAGE MHP | 73 | 3 |
| SQUIRE COURT LLC | 75 | 3 |
| BIRCH HAVEN TRAILER PARK | 43 | 3 |
| TOWN & COUNTRY TRAILER PARK | 48 | 3 |
| MAINE WATER COMPANY BIDDEFORD SACO DIV | 42,508 | 3 |
| GREAT SALT BAY SANITARY DISTRICT | 2,143 | 3 |
| FORT FAIRFIELD UTILITIES DISTRICT | 2,025 | 3 |
| GUILFORD-SANGERVILLE UTILITIES DISTRICT | 1,535 | 3 |
| MILO WATER DISTRICT | 1,720 | 3 |
| HARBOR VIEW I & II | 40 | 3 |
| GREENWOOD GARDEN APARTMENTS | 50 | 3 |
| HODGDON HOMESTEAD | 32 | 3 |
| BIRCH TREE MEADOWS MHP | 105 | 3 |
| SUN HANCOCK HEIGHTS- EAST | 158 | 2 |
| GEORGE POND ESTATES LLC | 50 | 2 |
| LIMERICK MOBILE HOME PARK LLC | 115 | 2 |
| OAKWOOD MOBILE COMMUNITY ASSOCIATION | 95 | 2 |
| WHIPPOORWILL HILL MOBILE HOME | 85 | 2 |
| SHERWOOD FOREST MHP | 68 | 2 |
| LAKES REGION APARTMENTS | 40 | 2 |
| ALLEN WATER COMPANY | 50 | 2 |
| AUBURN WATER DISTRICT | 17,245 | 2 |
| BINGHAM WATER DISTRICT | 1,075 | 2 |
| BOULIER PLACE APTS | 60 | 2 |
| BREWER WATER DEPARTMENT | 8,860 | 2 |
| CALAIS WATER DEPT | 2,775 | 2 |
| DEXTER UTILITY DISTRICT | 2,338 | 2 |
| OXFORD WATER DISTRICT | 1,100 | 2 |
| HOLDEN SQUARE APARTMENTS | 63 | 2 |
| WINDERMERE APARTMENTS | 50 | 2 |
| SANDY CREEK HOUSING | 50 | 2 |
| TOWN AND COUNTRY APARTMENTS | 136 | 2 |
| A PLACE FOR ALL SEASONS | 90 | 2 |
| COVERED BRIDGE APARTMENTS | 25 | 2 |
| HOMESTEAD ESTATES LLC | 125 | 2 |
| MOUNTAINSIDE MOBILE HOME PARK | 130 | 1 |
| ESTES LAKE MOBILE HOME PARK | 172 | 1 |
| NEZINSCOT VILLAGE | 67 | 1 |
| PLEASANT ACRES ESTATES | 193 | 1 |
| WARDTOWN PARK | 150 | 1 |
| BEGIN TRAILER PARK | 170 | 1 |
| ADDISON POINT WATER DISTRICT | 168 | 1 |
| BENJAMIN RIVER APTS | 45 | 1 |
| MAINE WATER COMPANY CAMDEN & ROCKLAND | 21,315 | 1 |
| DENNYSVILLE HOUSING | 43 | 1 |
| DINGLEY SPRING ESTATES | 90 | 1 |
| DIXFIELD WATER & SEWER DEPT | 1,415 | 1 |
| FORT KENT W & W DEPARTMENT | 1,578 | 1 |
| FRANKLIN WATER DEPARTMENT | 443 | 1 |
| HAMPDEN WATER DISTRICT | 4,628 | 1 |
| ISLAND FALLS WATER DEPT | 475 | 1 |
| KNIGHTS HILL ASSOCIATION | 718 | 1 |
| LEWISTON WATER & SEWER DIVISION | 23,720 | 1 |
| LIMERICK WATER DISTRICT | 625 | 1 |
| MATTAWAMKEAG HOUSING CORP | 33 | 1 |
| NORTH HAVEN WATER DEPARTMENT | 740 | 1 |
Cities with Water Issues
Bangor
24 water systems
Poland
18 water systems
Portland
14 water systems
Orono
7 water systems
Richmond
7 water systems
Alfred
6 water systems
Camden
6 water systems
Sabattus
6 water systems
Waterville
5 water systems
Winterport
5 water systems
Ellsworth
4 water systems
Presque Isle
4 water systems
Easton
3 water systems
Winthrop
3 water systems
Brewer
3 water systems
Bridgton
3 water systems
Fort Kent
3 water systems
Freeport
3 water systems
Sanford
2 water systems
Auburn
2 water systems
Superfund Sites (16)
| Site Name | Status | HRS Score |
|---|---|---|
| Brunswick Naval Air Station | NPL Site | 43.38 |
| Callahan Mine | NPL Site | 50.00 |
| Eastern Surplus | NPL Site | 50.00 |
| Eastland Woolen Mill | NPL Site | 70.71 |
| Keddy Mill | NPL Site | 50.00 |
| Leeds Metal | NPL Site | 32.25 |
| Loring Air Force Base | NPL Site | 34.49 |
| McKin Co. | Deleted NPL Site | 60.97 |
| O'Connor | Deleted NPL Site | 31.86 |
| Pinette's Salvage Yard | Deleted NPL Site | 33.98 |
| Portsmouth Naval Shipyard | Deleted NPL Site | 50.00 |
| Saco Municipal Landfill | NPL Site | 29.49 |
| Saco Tannery Waste Pits | Deleted NPL Site | 43.19 |
| Union Chemical Co., Inc. | Deleted NPL Site | 32.11 |
| West Site/Hows Corners | NPL Site | 50.00 |
| Winthrop Landfill | NPL Site | 35.62 |
Counties (16 total)
| County | Facilities |
|---|---|
| Cumberland | 27 |
| Penobscot | 6 |
| York | 16 |
| Androscoggin | 10 |
| Aroostook | 8 |
| Kennebec | 6 |
| Hancock | 3 |
| Knox | 5 |
| Waldo | 3 |
| Washington | 3 |
| Franklin | 2 |
| Somerset | 3 |
| Oxford | 1 |
| Sagadahoc | 1 |
| Piscataquis | 0 |
| Lincoln | 2 |
Cities with Environmental Records
South Portland
10 facilities · 0 water systems
Biddeford
5 facilities · 1 water systems
Bangor
4 facilities · 24 water systems
Portland
4 facilities · 14 water systems
Sanford
4 facilities · 2 water systems
Westbrook
4 facilities · 1 water systems
Auburn
3 facilities · 2 water systems
Lewiston
3 facilities · 1 water systems
Searsport
3 facilities · 1 water systems
Rockland
3 facilities · 0 water systems
Brunswick
2 facilities · 4 water systems
Houlton
2 facilities · 4 water systems
Easton
2 facilities · 3 water systems
Augusta
2 facilities · 2 water systems
Gorham
2 facilities · 2 water systems
Kittery
2 facilities · 1 water systems
North Berwick
2 facilities · 1 water systems
Scarborough
2 facilities · 1 water systems
Raymond
2 facilities · 0 water systems
Poland
1 facilities · 18 water systems
Frequently Asked Questions
How many TRI facilities are in Maine? ▼
Maine has 96 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 37.7M 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 Maine have Superfund sites? ▼
Yes, Maine has 16 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 Maine? ▼
Maine has 360 EPA-regulated water systems in the Safe Drinking Water Information System (SDWIS) extract used here. 115 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 Maine drinking water program. Source: EPA SDWIS.
What environmental data is available for Maine? ▼
PlainEnviro provides three categories of EPA environmental data for Maine: Toxic Release Inventory (TRI) data covering 96 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 360 water systems, and Superfund National Priorities List (NPL) data for 16 contaminated sites.
How does Maine compare to other states on EPA disclosure counts? ▼
Maine has 96 TRI facilities with 37.7M lbs in total releases, 16 Superfund sites, and 832 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 Maine's environmental health score? ▼
PlainEnviro's composite environmental health score for Maine is 51/100 (grade F). 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 Maine
TRI Facilities in Maine →
Every toxic-release facility reporting in the state, ranked by volume
Drinking Water Systems in Maine →
Community water systems and their violation records
Air Quality in Maine →
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 Maine: 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 Maine's data
Use this state profile as a starting point, then drill into the specific dataset that matters to you.
- Check the 96 TRI facilities reporting in Maine for the largest reported releases near a specific county. View facilities
- 115 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
- See how Maine 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
Maine'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.