EPA Air · inspections by county and year
Air-emissions inspections in Butler County, Pennsylvania, 2026
- 80Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row below is one inspection recorded against a source in Butler County, Pennsylvania during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Butler County facility page.
Butler County, Pennsylvania, 2026
Air-emissions inspections in Butler County, other years
Air-emissions inspections recorded in Butler County, Pennsylvania, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-09-03 | ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file | FCE On-Site | State |
| 2026-08-18 | LINDY PAVING INC/ZELIENOPLE PLT | FCE On-Site | State |
| 2026-08-18 | PURAGEN ACTIVATED CARBONS/EMLENTON | FCE On-Site | State |
| 2026-08-14 | OPTA USA INC/OPTA MYOMA PLT — high-priority violation on file | PCE Off-Site | State |
| 2026-08-06 | VORTEQ COIL FINISHERS/VALENCIA PLT | FCE On-Site | U.S. EPA |
| 2026-08-04 | ASCENSUS EVANS CITY SITE | FCE On-Site | State |
| 2026-07-23 | ROSINI CARBONS CO INC/BOYERS | FCE On-Site | State |
| 2026-06-29 | THREE RIVERS AGGREGATES LLC/BLACK RUN MINE | FCE On-Site | State |
| 2026-06-25 | LUXFER MAGTECH SAXONBURG PLT | PCE Off-Site | State |
| 2026-06-24 | ALLEGHENY MINERAL CORP/SLIPPERY ROCK | FCE On-Site | State |
| 2026-06-23 | ROSINI CARBONS CO INC/BOYERS | PCE On-Site Monitoring/Sampling | State |
| 2026-06-16 | SCHAWK USA LLC/EAST BUTLER COLLIDE | FCE On-Site | State |
| 2026-06-09 | FOX FUNERAL HOME INC/SAXONBURG | FCE On-Site | State |
| 2026-06-04 | WIEST ASPHALT PROD/BUTLER | FCE On-Site | State |
| 2026-06-03 | SONNEBORN INC/PETROLIA PLT | FCE On-Site | State |
| 2026-06-02 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | FCE On-Site | State |
| 2026-05-28 | BUTLER MEMORIAL HOSP/BUTLER | FCE On-Site | State |
| 2026-05-26 | LUXFER MAGTECH SAXONBURG PLT | PCE Off-Site | State |
| 2026-05-20 | EVERGREEN METALLURGICAL BUTLER FAC | FCE On-Site | State |
| 2026-05-15 | MTN GATHERING LLC/PENN CRYO FAC | FCE On-Site | State |
| 2026-05-12 | PA STATE SYS OF HIGHER ED/SLIPPERY ROCK UNIV PA | PCE Off-Site | State |
| 2026-05-12 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | PCE Off-Site | State |
| 2026-05-06 | HARSCO MINERALS/WINFIELD TWP | FCE On-Site | State |
| 2026-04-30 | PURVIS BROS INC/MARS | FCE On-Site | State |
| 2026-04-29 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | PCE On-Site Monitoring/Sampling | State |
| 2026-04-27 | ETC NORTHEAST PIPELINE/GALAXY COMP STA | PCE Off-Site | State |
| 2026-04-23 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | PCE On-Site Monitoring/Sampling | State |
| 2026-04-20 | ONEIDA VALLEY MIDSTRAM LLC/CONSTELLATION COMP STA | PCE Off-Site | State |
| 2026-04-17 | MARKWEST LIBERTY BLUESTONE LLC/VOLL COMP STA | FCE On-Site | State |
| 2026-04-17 | MARKWEST LIBERTY BLUESTONE LLC/TRILLITH COMP STA | FCE On-Site | State |
| 2026-04-17 | UGI MORAINE EAST GATHERING LLC/RENICK COMP STA | PCE Off-Site | State |
| 2026-04-16 | MTN GATHERING LLC/PALKO PURCHASE METER | PCE Off-Site | State |
| 2026-04-16 | MOUNTAIN GATHERING WELL PAD/BUTLER — high-priority violation on file | PCE Off-Site | State |
| 2026-04-15 | WASTE MGMT DSPL SVC/NORTHWEST SANITARY LANDFILL | PCE Off-Site | State |
| 2026-04-15 | LUXFER MAGTECH SAXONBURG PLT | FCE On-Site | State |
| 2026-04-14 | RIVERWEST APPALACHIA MIDSTREAM LLC/CLINTON COMP STA | PCE Off-Site | State |
| 2026-04-13 | MTN GATHERING LLC/PENN CRYO FAC | PCE Off-Site | State |
| 2026-04-13 | MTN GATHERING LLC/JEFFERSON COMP STA | PCE Off-Site | State |
| 2026-04-09 | MTN GATHERING LLC/FORWARD COMP STA | PCE Off-Site | State |
| 2026-03-30 | SENECA VALLEY SCH DIST/SENECA VALLEY JR SR HIGH SCH | FCE On-Site | State |
| 2026-03-25 | VORTEQ COIL FINISHERS/VALENCIA PLT | FCE On-Site | State |
| 2026-03-23 | VORTEQ COIL FINISHERS/VALENCIA PLT | PCE Off-Site | State |
| 2026-03-19 | PENN UNITED TECH/CARBIDE GROUP | PCE Off-Site | State |
| 2026-03-18 | ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file | PCE Off-Site | State |
| 2026-03-18 | MAIN STEEL/HARMONY | FCE On-Site | State |
| 2026-03-18 | LUXFER MAGTECH SAXONBURG PLT | PCE On-Site Monitoring/Sampling | State |
| 2026-03-17 | ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file | PCE Off-Site | State |
| 2026-03-17 | BUTLER COLOR PRESS/BUTLER | PCE Off-Site | State |
| 2026-03-17 | ETC NORTHEAST PIPELINE LLC/CONSTELLATION REMOTE PIG SITE | PCE Off-Site | State |
| 2026-03-16 | CALUMET KARNS CITY REF LLC/KARNS CITY | PCE Off-Site | State |
| 2026-03-16 | SONNEBORN INC/PETROLIA PLT | PCE Off-Site | State |
| 2026-03-09 | BNZ MATERIALS INC/ZELIENOPLE | PCE Off-Site | State |
| 2026-03-09 | MINTEQ INTL/ZEDMARK DIV SLIPPERY ROCK | PCE Off-Site | State |
| 2026-03-09 | CUE INC/CRANBERRY TWP PLT | PCE Off-Site | State |
| 2026-03-09 | EAGLE PRINTING CO/PROD CTR | PCE Off-Site | State |
| 2026-03-03 | MARKWEST LIBERTY BLUESTONE LLC/SARSEN GAS PROC PLT | PCE Off-Site | State |
| 2026-03-03 | MARKWEST LIBERTY BLUESTONE LLC/VOLL COMP STA | PCE Off-Site | State |
| 2026-03-03 | MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT | PCE Off-Site | State |
| 2026-03-03 | MARKWEST LIBERTY BLUESTONE LLC/TRILLITH COMP STA | PCE Off-Site | State |
| 2026-03-03 | MARKWEST LIBERTY BLUESTONE LLC/ROYAL OAK COMP STA | PCE Off-Site | State |
| 2026-03-02 | PINE RUN MIDSTREAM LLC/BASS COMP STA | PCE Off-Site | State |
| 2026-03-02 | PINE RUN MIDSTREAM LLC/BREWER INTERCONNECT STA | PCE Off-Site | State |
| 2026-03-02 | PINE RUN MIDSTREAM LLC/BICKER COMP STA | PCE Off-Site | State |
| 2026-02-27 | KAWNEER CO INC/CRANBERRY TWP | PCE Off-Site | State |
| 2026-02-26 | ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file | FCE On-Site | U.S. EPA |
| 2026-02-26 | LINDY PAVING INC/ZELIENOPLE PLT | PCE Off-Site | State |
| 2026-02-26 | PURVIS BROS INC/MARS | PCE Off-Site | State |
| 2026-02-23 | WIEST ASPHALT PROD/BUTLER | PCE Off-Site | State |
| 2026-02-17 | OESTERLINGS SANDBLASTING/BUTLER | PCE Off-Site | State |
| 2026-02-17 | MCKNIGHT CRANBERRY III LP/CRANBERRY TWP | FCE On-Site | State |
| 2026-02-06 | SCRAP SALVAGE & SURPLUS/BUTLER PLT — high-priority violation on file | PCE Off-Site | State |
| 2026-02-05 | EAGLE PRINTING CO/PROD CTR | FCE On-Site | State |
| 2026-02-05 | PINE RUN MIDSTREAM LLC/BASS COMP STA | FCE On-Site | State |
| 2026-02-05 | PINE RUN MIDSTREAM LLC/BICKER COMP STA | FCE On-Site | State |
| 2026-02-03 | SCRAP SALVAGE & SURPLUS/BUTLER PLT — high-priority violation on file | FCE On-Site | State |
| 2026-01-22 | COHERENT CORP SAXONBURG PLT | FCE On-Site | State |
| 2026-01-13 | CONCAST METAL PROD CO/ADAMS TWP | FCE On-Site | State |
| 2026-01-13 | CUE INC/CRANBERRY TWP PLT | FCE On-Site | State |
| 2026-01-07 | OESTERLINGS SANDBLASTING/BUTLER | FCE On-Site | State |
| 2026-01-06 | VOGEL DISPOSAL SVC INC/ADAMS TWP | FCE On-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.