EPA Air · stack tests by county and year
Air-emissions stack tests in Washington County, Pennsylvania, 2022
- 67Stack 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 Washington 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 Washington County facility page.
Washington County, Pennsylvania, 2022
Air-emissions stack tests in Washington County, other years
Air-emissions stack tests recorded in Washington County, Pennsylvania, 2022
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2022-11-10 | CNX MIDSTREAM OPR CO LLC/MOR-44 COMP STA | Pass | State |
| 2022-11-09 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2022-11-08 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | Pass | State |
| 2022-11-08 | MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA | Pass | State |
| 2022-11-07 | MARKWEST LIBERTY MIDSTREAM RES/DOWN HOME COMPRESSOR STATION | Pass | State |
| 2022-11-02 | EQM GATHERING OPCO LLC/MCINTOSH COMP STA | Pass | State |
| 2022-10-28 | TECH MET/DONORA PLT | Pass | State |
| 2022-10-28 | MARKWEST LIBERTY MIDSTREAM RES/DOWN HOME COMPRESSOR STATION | Pass | State |
| 2022-10-20 | MARKWEST LIBERTY MID & RES / HOSKINS BOOSTER COMP STA | Pass | State |
| 2022-10-19 | UGI GIBRALTAR GATHERING LLC/GIBRALTAR COMP STA | Pass | State |
| 2022-10-13 | MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA | Pass | State |
| 2022-10-12 | DYNAMET INC/ARDEN FAC | Pass | State |
| 2022-10-06 | LOAN ASSET ISSUER LLC/WEST FINLEY 1 WELL PAD | Pass | State |
| 2022-10-03 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/GODWIN COMP STA | Pass | State |
| 2022-10-03 | NATL FUEL SUPPLY CORP/BUFFALO COMP STA | Pass | State |
| 2022-10-01 | MARKWEST LIBERTY MID & RES / HOSKINS BOOSTER COMP STA | Pass | State |
| 2022-09-27 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2022-09-26 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA — high-priority violation on file | Pass | State |
| 2022-09-22 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/HOUSTON GAS PLT | Pass | State |
| 2022-09-15 | NORTHEAST PAVING/WASHINGTON PLANT | Pass | State |
| 2022-09-13 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA — high-priority violation on file | Pass | State |
| 2022-09-13 | EQM GATHERING OPCO LLC/PISCES COMP STA | Pass | State |
| 2022-09-08 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/JOHNSTON COMP STA | Pass | State |
| 2022-09-08 | MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA | Pass | State |
| 2022-08-31 | EQM GATHERING OPCO LLC/STEELHEAD COMP STA | Pass | State |
| 2022-08-23 | MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA | Pass | State |
| 2022-08-19 | DIVERSIFIED PROD LLC/NV 34 WELLPAD — high-priority violation on file | Pass | State |
| 2022-08-19 | DIVERSIFIED PROD LLC/NINEVEH 58 WELL PAD — high-priority violation on file | Pass | State |
| 2022-08-19 | DIVERSIFIED PROD LLC/NV 60 WELLPAD | Pass | State |
| 2022-08-18 | NORTHEAST PAVING/WASHINGTON PLANT | Pass | State |
| 2022-08-12 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/JOHNSTON COMP STA | Pass | State |
| 2022-08-11 | CNX MIDSTREAM OPR CO LLC/NV-57 COMP STA | Pass | State |
| 2022-08-10 | MARKWEST LIBERTY M&R/TUPTA DAY COMP STA | Pass | State |
| 2022-08-09 | MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA | Pass | State |
| 2022-08-08 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2022-07-20 | EQM GATHERING OPCO LLC/BLUE MOON COMP STA | Pass | State |
| 2022-07-15 | COLUMBIA GAS TRANS CORP/DONEGAL COMP STA | Pass | State |
| 2022-06-15 | EQM GATHERING OPCO LLC/BLUE MOON COMP STA | Pass | State |
| 2022-05-17 | EQM GATHERING OPCO LLC/MAKO COMP STA | Pass | State |
| 2022-05-11 | EQM GATHERING OPCO LLC/TWILIGHT COMP STA | Pass | State |
| 2022-05-06 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA | Pass | State |
| 2022-05-05 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | Pass | State |
| 2022-05-05 | COLUMBIA GAS TRANS LLC/REDD FARM COMP STA | Pass | State |
| 2022-05-05 | MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA | Pass | State |
| 2022-05-04 | MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | Pass | State |
| 2022-04-27 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/REDD COMP STA | Pass | State |
| 2022-04-25 | ETC NORTHEAST PIPELINE/REVOLUTION CRYO PLT | Pass | State |
| 2022-04-13 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART | Pass | State |
| 2022-04-11 | MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA | Pass | State |
| 2022-04-08 | MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA | Pass | State |
| 2022-04-07 | MARKWEST LIBERTY MIDSTREAM/DRYER BOOSTER COMP STA | Pass | State |
| 2022-04-06 | MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA | Pass | State |
| 2022-04-05 | MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA | Pass | State |
| 2022-04-04 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2022-04-01 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA — high-priority violation on file | Pass | State |
| 2022-03-29 | EQT PROD CO/MOJO COMPRESSOR UNIT | Pass | State |
| 2022-03-02 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART | Pass | State |
| 2022-03-02 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2022-02-28 | MARKWEST LIBERTY M&R/TUPTA DAY COMP STA | Pass | State |
| 2022-02-25 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | Pass | State |
| 2022-02-25 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA | Pass | State |
| 2022-02-24 | MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | Pass | State |
| 2022-02-17 | DIVERSIFIED PROD LLC/CALIFORNIA COMP STA | Pass | State |
| 2022-02-03 | LOAN ASSET ISSUER LLC/WEST FINLEY 4 WELL PAD | Pass | State |
| 2022-01-20 | LOAN ASSET ISSUER LLC/WEST FINLEY 6 WELL PAD | Pass | State |
| 2022-01-20 | LOAN ASSET ISSUER LLC/WEST FINLEY 5 WELL PAD | Pass | State |
| 2022-01-12 | EQM GATHERING OPCO LLC/BLUE MOON COMP STA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.