Butler, PA
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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Butler in Pennsylvania · Population: 195,870
TRI sites such as Cleveland-Cliffs Steel Corp /butler Works; Ervin Industries in Amasteel Div; Sonneborn LLC; SDWIS systems such as CRANBERRY TWP WTP; SLIPPERY ROCK MUNI AUTH; MUNICIPAL WATER AUTH ADAMS TWP; NPL sites such as Bruin Lagoon; Hranica Landfill anchor Butler, PA's EPA extract. Derived burden score 76/100 (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 Butler include MUNICIPAL WATER AUTH ADAMS TWP; HARMONY BORO WATER AUTH; BUFFALO TWP MUN AUTH FREEPORT, while Cleveland-Cliffs Steel Corp /butler Works leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 76/100 (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 Butler -- 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 Butler, PA: EPA TRI 2023 reporting year
Same facilities, both years
-14.0%
35 facilities that filed in 2022 and 2023
Whole inventory
-14.0%
3.8 million lb → 3.2 million lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Butler, PA's total reported releases fell from 3.8 million lb in 2022 to 3.2 million lb in 2023, based on EPA TRI filings.
- Butler, PA's water releases fell from 2.8 thousand lb in 2022 to 2.0 thousand lb in 2023, based on EPA TRI filings.
- Butler, PA's land releases fell from 2.5 million lb in 2022 to 1.8 million lb in 2023, based on EPA TRI filings.
- Butler, PA's air releases fell from 93.1 thousand lb in 2022 to 76.2 thousand lb in 2023, based on EPA TRI filings.
Water Systems (31)
| System | System pop (SDWIS) | 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 | 1 |
| 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 |
| BROOKSIDE COMMONS | 125 | 4 |
| 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)
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Bruin Lagoon | Deleted NPL Site | 73.11 |
| Hranica Landfill | Deleted NPL Site | 51.94 |
Cities in Butler (28)
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.