Cumberland, ME
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Cumberland in Maine · Population: 305,940
TRI sites such as Sappi N.a. - Westbrook Operations; Texas Instruments Inc; Bath Iron Works-Structural Fabrication Facility (formerly Ha; SDWIS systems such as PORTLAND WATER DISTRICT-GREATER; YARMOUTH WATER DISTRICT; BRIDGTON WATER DISTRICT; NPL sites such as Brunswick Naval Air Station; Keddy Mill; McKin Co. anchor Cumberland, ME's EPA extract. Derived burden score 72/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Cumberland include GRAY WATER DISTRICT; KNIGHTS HILL ASSOCIATION; ST. JOHN'S RIVER CLUB UTILITIES, while Sappi N.a. - Westbrook Operations leads reported TRI pounds among local Form R filers. AQS median AQI 37 / peak 119 in 2024.
Burden score 72/100 (High Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Cumberland -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Cumberland, ME: EPA TRI 2023 reporting year
Same facilities, both years
-3.7%
20 facilities that filed in 2022 and 2023
Whole inventory
-3.7%
169.5 thousand lb → 163.2 thousand lb, every facility that filed
- Cumberland, ME's total reported releases fell from 169.5 thousand lb in 2022 to 163.2 thousand lb in 2023, based on EPA TRI filings.
- Cumberland, ME's water releases rose from 921 lb in 2022 to 1.2 thousand lb in 2023, based on EPA TRI filings.
- Cumberland, ME's off-site transfers fell from 66.4 thousand lb in 2022 to 60.9 thousand lb in 2023, based on EPA TRI filings.
- Cumberland, ME's chemicals reported rose from 32 in 2022 to 34 in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 291 (80%) | 74 | 1 | 119 |
| 2023 | 266 (73%) | 96 | 3 | 120 |
| 2022 | 323 (89%) | 36 | 3 | 109 |
| 2021 | 319 (87%) | 43 | 3 | 129 |
| 2020 | 263 (72%) | 103 | 0 | 97 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Maine, see the EPA's AirNow.gov.
Water Systems (36)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| PORTLAND WATER DISTRICT-GREATER | 135,068 | 0 |
| YARMOUTH WATER DISTRICT | 8,000 | 0 |
| BRIDGTON WATER DISTRICT | 3,660 | 0 |
| GRAY WATER DISTRICT | 2,468 | 7 |
| PEQUOT HIGHLANDS | 900 | 0 |
| HARRISON WATER DISTRICT | 863 | 0 |
| FRIENDLY VILLAGE OF GORHAM MHP | 763 | 0 |
| KNIGHTS HILL ASSOCIATION | 718 | 1 |
| PORTLAND WATER DISTRICT/STEEP FALLS | 480 | 0 |
| MIDCOAST REGIONAL REDEVELOP AUTHORITY | 363 | 0 |
| ST. JOHN'S RIVER CLUB UTILITIES | 170 | 11 |
| MILLSTONE APARTMENTS | 156 | 0 |
| WARDTOWN PARK | 150 | 1 |
| NEW GLOUCESTER WATER DISTRICT | 145 | 0 |
| WHITE TAIL RIDGE ASSOCIATION | 123 | 0 |
| MEADOWS AT GRAPEVINE RUN | 100 | 0 |
| DINGLEY SPRING ESTATES | 90 | 1 |
| CASCO INN RESIDENTIAL CARE | 80 | 1 |
| SQUIRE COURT LLC | 75 | 3 |
| POND & POND TRAILER PARK | 63 | 4 |
| WOOD POND VILLAGE | 60 | 0 |
| BROOKSIDE MOBILE HOME COURT | 58 | 0 |
| APPLEWOOD | 55 | 0 |
| PINES MOBILE HOME PARK LLC | 50 | 0 |
| SANDY CREEK HOUSING | 50 | 2 |
| HARMON PINES DEVELOPMENT | 50 | 7 |
| VOA/NNE SENIOR HOUSING | 50 | 0 |
| 322 ROOSEVELT TRAIL | 46 | 4 |
| SCARBOROUGH GARDENS | 45 | 1 |
| BROOKSIDE MHP | 40 | 0 |
| NORTHEASTERN ESTATES | 40 | 0 |
| MEADOWVIEW APARTMENTS | 40 | 0 |
| ELWELL FARMS | 36 | 0 |
| TIDAL BROOK DEVELOPMENT | 35 | 0 |
| BROOK HOLLOW | 35 | 0 |
| DIPPER COVE ASSOCIATION | 30 | 0 |
TRI Facilities (27)
Superfund Sites (3)
| Site Name | Status | HRS Score |
|---|---|---|
| Brunswick Naval Air Station | NPL Site | 43.38 |
| Keddy Mill | NPL Site | 50.00 |
| McKin Co. | Deleted NPL Site | 60.97 |
Cities in Cumberland (19)
Frequently Asked Questions
What is the environmental risk level in Cumberland, Maine? ▼
Are there Superfund sites in Cumberland? ▼
How many toxic release facilities are in Cumberland? ▼
What is the air quality in Cumberland? ▼
Is the drinking water safe in Cumberland? ▼
What environmental agencies cover Cumberland? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.