Bristol, MA
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 Bristol in Massachusetts · Population: 578,436
TRI sites such as Metalor Technologies USA; Acushnet Co Ball Plant II; Acushnet Co Ball Plant III; SDWIS systems such as INIMA USA / AQUARIA LLC; CITY OF NEW BEDFORD DPI; FALL RIVER WATER DEPARTMENT; NPL sites such as Atlas Tack Corp.; Hatheway and Patterson Company; New Bedford Site anchor Bristol, MA's EPA extract. Derived burden score 95/100 (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 Bristol include FALL RIVER WATER DEPARTMENT; ATTLEBORO WATER DEPT; DARTMOUTH WATER DIVISION, while Metalor Technologies USA leads reported TRI pounds among local Form R filers. AQS median AQI 38 / peak 108 in 2024.
Burden score 95/100 (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 Bristol -- 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 Bristol, MA: EPA TRI 2023 reporting year
Same facilities, both years
-47.7%
52 facilities that filed in 2022 and 2023
Whole inventory
-42.0%
641.5 thousand lb → 372.0 thousand lb, every facility that filed
Between the two reporting years, 3 facilities filed for the first time and 3 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Bristol, MA's total reported releases fell from 634.4 thousand lb in 2022 to 332.1 thousand lb in 2023, based on EPA TRI filings.
- Bristol, MA's off-site transfers fell from 582.8 thousand lb in 2022 to 267.9 thousand lb in 2023, based on EPA TRI filings.
- Bristol, MA's air releases rose from 51.5 thousand lb in 2022 to 64.2 thousand lb in 2023, based on EPA TRI filings.
- Bristol, MA's chemicals reported rose from 43 in 2022 to 44 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 | 322 (88%) | 42 | 2 | 108 |
| 2023 | 269 (74%) | 87 | 9 | 137 |
| 2022 | 301 (82%) | 63 | 1 | 115 |
| 2021 | 279 (76%) | 84 | 2 | 147 |
| 2020 | 250 (68%) | 113 | 3 | 119 |
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 Massachusetts, see the EPA's AirNow.gov.
Water Systems (30)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| INIMA USA / AQUARIA LLC | 105,643 | 0 |
| CITY OF NEW BEDFORD DPI | 101,079 | 0 |
| FALL RIVER WATER DEPARTMENT | 94,000 | 1 |
| TAUNTON WATER DIVISION | 62,165 | 0 |
| ATTLEBORO WATER DEPT | 46,461 | 2 |
| NORTH ATTLEBORO WATER DEPT | 31,410 | 0 |
| EASTON WATER DIV | 25,058 | 0 |
| DARTMOUTH WATER DIVISION | 24,696 | 22 |
| MANSFIELD WATER DIVISION | 21,797 | 0 |
| NORTON WATER DEPARTMENT | 19,161 | 9 |
| SOMERSET WATER DEPARTMENT | 18,303 | 18 |
| SWANSEA WATER DISTRICT | 17,375 | 20 |
| FAIRHAVEN WATER DEPT | 15,155 | 4 |
| SEEKONK WATER DISTRICT | 13,801 | 1 |
| RAYNHAM CENTER WATER DISTRICT | 10,964 | 0 |
| ACUSHNET WATER DEPARTMENT | 8,430 | 0 |
| DIGHTON WATER DISTRICT | 5,280 | 5 |
| NORTH RAYNHAM WATER DISTRICT | 3,902 | 0 |
| FREETOWN WATER COMMISSION | 1,600 | 0 |
| NORTH DIGHTON FIRE DISTRICT | 1,300 | 0 |
| KINGS GRANT WATER CO INC | 434 | 0 |
| TOWN OF WESTPORT | 328 | 0 |
| THE RESERVE AT SPRING HILL | 300 | 2 |
| WESTPORT SENIOR VILLAGE | 150 | 2 |
| SCHOONER PASS TRUSTEES CONDOMINIUMS | 136 | 0 |
| PINE RIDGE CONDOMINIUMS AT SAMPSONS POND | 89 | 0 |
| ACUSHNET MANUFACTURED HOMES | 85 | 0 |
| BROOKSIDE MOBILE HOME PARK | 67 | 0 |
| COUNTRY MANOR | 66 | 25 |
| MAYNARD STATE LLC | 35 | 0 |
TRI Facilities (50)
Superfund Sites (7)
| Site Name | Status | HRS Score |
|---|---|---|
| Atlas Tack Corp. | NPL Site | 42.60 |
| Hatheway and Patterson Company | Deleted NPL Site | 56.60 |
| New Bedford Site | NPL Site | 0.00 |
| Re-Solve, Inc. | NPL Site | 47.71 |
| Shpack Landfill | Deleted NPL Site | 29.45 |
| Sullivan's Ledge | NPL Site | 32.77 |
| Walton & Lonsbury Inc. | NPL Site | 58.30 |
Cities in Bristol (25)
Frequently Asked Questions
What is the environmental risk level in Bristol, Massachusetts? ▼
Are there Superfund sites in Bristol? ▼
How many toxic release facilities are in Bristol? ▼
What is the air quality in Bristol? ▼
Is the drinking water safe in Bristol? ▼
What environmental agencies cover Bristol? ▼
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.