EPA Air · stack tests by county and year
Air-emissions stack tests in Butler County, Pennsylvania, 2022
- 24Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Butler County, Pennsylvania during 2022. 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, 2022
Air-emissions stack tests in Butler County, other years
Air-emissions stack tests recorded in Butler County, Pennsylvania, 2022
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2022-12-09 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | Pass | State |
| 2022-11-29 | HARSCO METALS/BUTLER | Pass | State |
| 2022-11-10 | MARKWEST LIBERTY BLUESTONE LLC/TRILLITH COMP STA | Pass | State |
| 2022-10-19 | PINE RUN MIDSTREAM LLC/BICKER COMP STA | Pass | State |
| 2022-10-19 | PINE RUN MIDSTREAM LLC/BICKER COMP STA | Pass | State |
| 2022-10-06 | MARKWEST LIBERTY BLUESTONE LLC/SARSEN GAS PROC PLT | Pass | State |
| 2022-10-06 | MARKWEST LIBERTY BLUESTONE LLC/TRILLITH COMP STA | Pass | State |
| 2022-09-29 | MTN GATHERING LLC/JEFFERSON COMP STA | Pass | State |
| 2022-09-26 | MTN GATHERING LLC/FORWARD COMP STA | Pass | State |
| 2022-09-20 | MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT | Pass | State |
| 2022-08-25 | MARKWEST LIBERTY BLUESTONE LLC/TRILLITH COMP STA | Pass | State |
| 2022-08-08 | UGI MORAINE EAST GATHERING LLC/RENICK COMP STA | Pass | State |
| 2022-08-03 | MARKWEST LIBERTY BLUESTONE LLC/ROYAL OAK COMP STA | Pass | State |
| 2022-08-03 | XTO ENERGY INC/GUIHER LUTHERYN | Pass | State |
| 2022-07-21 | PINE RUN MIDSTREAM LLC/BASS COMP STA | Pass | State |
| 2022-06-28 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | Pass | State |
| 2022-06-07 | PINE RUN MIDSTREAM LLC/BASS COMP STA | Pass | State |
| 2022-06-03 | MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT | Pass | State |
| 2022-05-25 | ETC NORTHEAST PIPELINE/GALAXY COMP STA | Pass | State |
| 2022-05-19 | RIVERWEST APPALACHIA MIDSTREAM LLC/CLINTON COMP STA | Pass | State |
| 2022-03-30 | ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file | Pass | State |
| 2022-03-09 | MARKWEST LIBERTY BLUESTONE LLC/VOLL COMP STA | Pass | State |
| 2022-02-02 | MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT | Pass | State |
| 2022-01-24 | PINE RUN MIDSTREAM LLC/BICKER COMP STA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.