Butler County, PA
The federal environmental record for Butler County (population 197,300): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
3
federal cleanup sites
2
PFAS-detecting water systems
36
TRI facilities
12
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Bruin Lagoon | Bruin Borough | deleted | 09/08/1983 |
| Hranica Landfill | Buffalo Township | deleted | 09/08/1983 |
Drinking water: PFAS testing
Public water systems serving Butler with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| ZELIENOPLE BORO PA5100093 | PFBS: 17.1 ng/L PFBA: 7.8 ng/L PFHxA: 6.5 ng/L | above final limit |
| HARMONY BORO WATER AUTH PA5100042 | PFBA: 5 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
36 facilities in Butler filed TRI reports for 2024, totalling 2.7M lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | Manganese compounds, Chromium compounds (except for chromite ore mined in the Transvaal Region) | 2.3M lb |
| ADVANCED POLYMER TECHNOLOGY | EVANS CITY | N-Methyl-2-pyrrolidone, Chromium compounds (except for chromite ore mined in the Transvaal Region) | 164k lb |
| ERVIN INDUSTRIES IN AMASTEEL DIV | BUTLER | Manganese | 69k lb |
| COHERENT CORP. | SAXONBURG | Selenium compounds, Zinc compounds | 41k lb |
| ARMSTRONG CEMENT & SUPPLY CORP | CABOT | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 19k lb |
| VORTEQ VALENCIA LLC | VALENCIA | Certain glycol ethers, 1,2,4-Trimethylbenzene | 13k lb |
| ETC NORTHEAST PIPELINE/GALAXY COMP STA | PARKER | n-Hexane, Formaldehyde | 13k lb |
| ASCENSUS SPECIALTIES CALLERY LLC | EVANS CITY | n-Hexane, Methanol | 9k lb |
| BLUESTONE GAS PLANT | EVANS CITY | n-Hexane, Benzene | 8k lb |
| KAWNEER CO INC. | CRANBERRY TOWNSHIP | Certain glycol ethers, Toluene | 5k lb |
| DU-CO CERAMICS CO | SAXONBURG | Zinc compounds | 4k lb |
| CONCAST METAL PRODUCTS CO | MARS | Copper, Lead | 3k lb |
| JSP INTL MFG | BUTLER | Diisocyanates | 1k lb |
| CALUMET KARNS CITY REFINING LLC | KARNS CITY | 1,2,4-Trimethylbenzene, Xylene (mixed isomers) | 1k lb |
| MOUNTAIN GATHERING LLC - PENN CRYO FACILITY | RENFREW | n-Hexane | 547 lb |
| SONNEBORN LLC | PETROLIA | Hydrogen sulfide | 361 lb |
| MSA SAFETY PITTSBURGH MANUFACTURING LLC | CRANBERRY TOWNSHIP | Lead | 312 lb |
| BERRY METAL CO | HARMONY | Copper | 169 lb |
| HARSCO METALS - BUTLER | BUTLER | Manganese And Manganese Compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 144 lb |
| JAMES AUSTIN CO | MARS | Methanol | 107 lb |
| MAIN STEEL POLISHING CO. | HARMONY | Copper, Cobalt | 75 lb |
| ATI PRECISION FINISHING LLC - ZELIENOPLE | ZELIENOPLE | Manganese And Manganese Compounds, Nickel And Nickel Compounds | 35 lb |
| BEAR METALLURGICAL CO | BUTLER | Molybdenum trioxide, Vanadium compounds | 6 lb |
| LABCHEM INC | ZELIENOPLE | Mercury And Mercury Compounds | 5 lb |
| 400 ROBINSON FANS | HARMONY | Copper, Nickel | 3 lb |
Underground fuel tanks
EPA's UST Finder records 506 tank facilities in Butler: 373 tanks in service and 1,251 closed. 151 fuel releases are on record, of which 12 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Butler as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Butler, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BRUIN LAGOONBRUIN
- BUTLER VA MED CTRBUTLER
- HRANICA LANDFILLSARVER