Butler, PA
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against every other tracked county rather than against fixed national thresholds.
Environmental data for Butler in Pennsylvania · Population: 195,870
Butler, PA is tracked across three EPA datasets covering 38 Toxics Release Inventory (TRI) facilities, 30 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 66/100 (High Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 15.2M lbs of reported toxic releases under EPCRA Section 313, while 9 water systems carry an active health-based violation in the SDWIS record. No EPA Air Quality System monitors currently report data for this county.
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.
Water Systems (30)
| System | Population | Violations |
|---|---|---|
| CRANBERRY TWP WTP | 42,000 | 0 |
| SLIPPERY ROCK MUNI AUTH | 15,778 | 0 |
| MUNICIPAL WATER AUTH ADAMS TWP | 8,700 | 1 |
| HARMONY BORO WATER AUTH | 6,669 | 12 |
| BUFFALO TWP MUN AUTH FREEPORT | 5,849 | 12 |
| ZELIENOPLE BORO | 4,123 | 1 |
| PETROLEUM VALLEY RWA | 3,800 | 0 |
| SEVEN FIELDS BORO WATER DEPT | 3,100 | 0 |
| EVANS CITY BOROUGH | 1,990 | 0 |
| MARS BOROUGH WATER WORKS | 1,956 | 0 |
| CHICORA BORO WATER SUPPLY | 1,100 | 0 |
| CONCORDIA LUTHERAN HOME | 950 | 1 |
| LAKE ARTHUR ESTATES | 460 | 0 |
| CRANBERRY VILLAGE MHP | 400 | 2 |
| BRANDON MAINTENANCE | 300 | 0 |
| AUTUMN GROVE CARE CENTER | 240 | 0 |
| MARION TWP WTP | 225 | 4 |
| FAIR WINDS | 182 | 0 |
| CHICORA MEDICAL CENTER | 150 | 1 |
| WHISPERING WOODS | 100 | 0 |
| BEACON LITE MOBILE ESTATES | 100 | 2 |
| SUTTON MHP | 96 | 0 |
| SUMMIT ESTATES | 72 | 0 |
| WOODBINE OAKS MHP | 65 | 0 |
| YOUNGS MOBILE HOME PARK | 63 | 0 |
| NORTH STAR VILLAGE | 60 | 0 |
| CUPEC MOBILE ESTATES | 56 | 0 |
| LAKEVIEW MOBILEHOME PARK | 44 | 0 |
| MAPLE MANOR MHP | 37 | 0 |
| ROBINSONS MOBILE HOME PARK | 30 | 0 |
TRI Facilities (38)
Cities in Butler (20)
Frequently Asked Questions
What is the environmental risk level in Butler, Pennsylvania? ▼
Are there Superfund sites in Butler? ▼
How many toxic release facilities are in Butler? ▼
What is the air quality in Butler? ▼
Is the drinking water safe in Butler? ▼
What environmental agencies cover Butler? ▼
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.