York, ME
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for York in Maine · Population: 214,731
York, ME is tracked across three EPA datasets covering 16 Toxics Release Inventory (TRI) facilities, 32 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 41/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 182.1K lbs of reported toxic releases under EPCRA Section 313, while 12 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 34 and a peak AQI of 129 in 2024, with 96% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
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 | 346 (96%) | 14 | 1 | 129 |
| 2023 | 304 (93%) | 24 | 0 | 84 |
| 2022 | 230 (93%) | 14 | 2 | 126 |
| 2021 | 217 (90%) | 20 | 3 | 129 |
| 2020 | 223 (95%) | 12 | 0 | 87 |
Source: EPA Air Quality System (AQS) Annual AQI by County 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 (32)
| System | Population | Violations |
|---|---|---|
| KENNEBUNK, KENNEBUNKPORT & WELLS WD | 35,663 | 0 |
| KITTERY WATER DISTRICT | 14,478 | 0 |
| SANFORD WATER DISTRICT | 14,328 | 0 |
| YORK WATER DISTRICT | 13,675 | 0 |
| SOUTH BERWICK WATER DISTRICT | 3,722 | 10 |
| LAKE ARROWHEAD COMMUNITY INC | 3,500 | 0 |
| BERWICK WATER DEPARTMENT | 2,470 | 6 |
| NORTH BERWICK WATER DISTRICT | 1,825 | 2 |
| MILTON WATER DIST | 800 | 1 |
| ALFRED WATER DISTRICT | 783 | 0 |
| CORNISH WATER DISTRICT | 753 | 0 |
| LIMERICK WATER DISTRICT | 625 | 1 |
| WATERBORO WATER DISTRICT | 470 | 0 |
| KEYWOOD MANOR MHP LLC | 411 | 0 |
| OLD MARSH CONDOMINIUM | 325 | 0 |
| COLONIAL MOBILE HOME PARK | 270 | 0 |
| WOODLAND HILLS CONDO ASSOCIATION | 253 | 1 |
| PINE SPRING ROADS & WATER | 210 | 0 |
| ESTES LAKE MOBILE HOME PARK | 172 | 1 |
| MT ABRAM CHALET ASSOCIATION | 160 | 1 |
| LIMERICK MOBILE HOME PARK LLC | 115 | 2 |
| TANGLEWOOD MOBILE ESTATES 2 | 103 | 0 |
| OAKWOOD MOBILE COMMUNITY ASSOCIATION | 95 | 2 |
| OAKWOOD MOBILE COMMUNITY ASSOCIATION-2 | 95 | 0 |
| BURNT MILL SETTLEMENT | 73 | 0 |
| YORK COUNTY SHELTERS | 70 | 0 |
| TWIN PINES ESTATES #1 | 63 | 0 |
| CROSSROADS COMMUNITY MHP | 57 | 1 |
| TWIN PINES ESTATES #2 | 50 | 0 |
| TOWN & COUNTRY TRAILER PARK | 48 | 2 |
| PINETREE VILLAGE HOMEOWNERS ASSOCIATION | 40 | 0 |
| PHEASANT HILL MHP | 35 | 0 |
TRI Facilities (16)
| # | Facility | Total Releases |
|---|---|---|
| 1 | US Navy Portsmouth Naval Shipyard | 95.1K lbs |
| 2 | Pratt & Whitney | 32.5K lbs |
| 3 | Gvs N.a. | 31.2K lbs |
| 4 | Polyvantis Sanford LLC | 14.8K lbs |
| 5 | Tom's of Maine Inc | 3.5K lbs |
| 6 | Gd Ots Inc | 2.2K lbs |
| 7 | Soleras Advanced Coatings | 1.4K lbs |
| 8 | Valmet Inc | 889 lbs |
| 9 | Downeast Energy | 165 lbs |
| 10 | Expanded Rubber Products Inc | 80 lbs |
| 11 | Hussey Seating Co | 73 lbs |
| 12 | Fiber Materials Inc | 57 lbs |
| 13 | Pike Industries Inc. - Wells | 25 lbs |
| 14 | Intermat | 4 lbs |
| 15 | Kyocera Avx Components (biddeford) Corp | 1 lbs |
| 16 | Parker Hannifin Corp Pneumatic Div Kittery Maine | 0 lbs |
Cities in York (7)
Frequently Asked Questions
What is the environmental risk level in York, Maine? ▼
Are there Superfund sites in York? ▼
How many toxic release facilities are in York? ▼
What is the air quality in York? ▼
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What environmental agencies cover York? ▼
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.