EPA Air · stack tests by county and year
Air-emissions stack tests in Washington County, Pennsylvania, 2024
- 66Stack 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 2024. 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, 2024
Air-emissions stack tests in Washington County, other years
Air-emissions stack tests recorded in Washington County, Pennsylvania, 2024
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2024-12-31 | LOAN ASSET ISSUER LLC/WEST FINLEY 10 WELL PAD | Pass | State |
| 2024-12-30 | LOAN ASSET ISSUER LLC/WEST FINLEY 1 WELL PAD | Pass | State |
| 2024-12-23 | LOAN ASSET ISSUER LLC/WEST FINLEY 6 WELL PAD | Pass | State |
| 2024-12-23 | LOAN ASSET ISSUER LLC/WEST FINLEY 5 WELL PAD | Pass | State |
| 2024-12-17 | EQM GATHERING OPCO LLC/MAKO COMP STA | Pass | State |
| 2024-12-11 | ROVER PIPELINE LLC/BULGER COMP STA | Pass | State |
| 2024-11-12 | EQM GATHERING OPCO LLC/MCINTOSH COMP STA | Pass | State |
| 2024-11-04 | EQT MIDSTREAM COMPANY LLC/DEEMSTON WICKS COMP STA | Pass | State |
| 2024-10-23 | EXPAND OPERATING LLC/BERNARD MCCULLEY WELLPAD | Pass | State |
| 2024-10-17 | DIVERSIFIED PROD LLC/NV 34 WELLPAD — high-priority violation on file | Pass | State |
| 2024-10-16 | EQM GATHERING OPCO LLC/MCINTOSH COMP STA | Pass | State |
| 2024-10-16 | DIVERSIFIED PROD LLC/NINEVEH 58 WELL PAD — high-priority violation on file | Pass | State |
| 2024-10-16 | DIVERSIFIED PROD LLC/NV 60 WELLPAD | Pass | State |
| 2024-10-14 | UGI GIBRALTAR GATHERING LLC/GIBRALTAR COMP STA | Pass | State |
| 2024-10-08 | MARKWEST LIBERTY MIDSTREAM RES/DOWN HOME COMPRESSOR STATION | Pass | State |
| 2024-10-03 | MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA | Pass | State |
| 2024-09-19 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/GODWIN COMP STA | Pass | State |
| 2024-09-12 | EXPAND OPERATING LLC/JOHN MCMURRAY WELLPAD | Pass | State |
| 2024-09-11 | MARKWEST LIBERTY MID & RES / HOSKINS BOOSTER COMP STA | Pass | State |
| 2024-08-28 | EQM GATHERING OPCO LLC/STEELHEAD COMP STA | Pass | State |
| 2024-08-22 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2024-08-15 | CNX MIDSTREAM OPR CO LLC/NV-57 COMP STA | Pass | State |
| 2024-07-22 | EQM GATHERING OPCO LLC/TWILIGHT COMP STA | Pass | State |
| 2024-07-19 | COLUMBIA GAS TRANS CORP/DONEGAL COMP STA | Pass | State |
| 2024-07-18 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2024-07-17 | MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA | Pass | State |
| 2024-07-17 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/HARMON CREEK GAS PLT — high-priority violation on file | Pass | State |
| 2024-07-16 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/JOHNSTON COMP STA | Pass | State |
| 2024-07-10 | EQM GATHERING OPCO LLC/BLUE MOON COMP STA | Pass | State |
| 2024-06-25 | EQM GATHERING OPCO LLC/MAKO COMP STA | Pass | State |
| 2024-06-20 | LOAN ASSET ISSUER LLC/WEST FINLEY 10 WELL PAD | Pass | State |
| 2024-06-19 | LOAN ASSET ISSUER LLC/WEST FINLEY 5 WELL PAD | Pass | State |
| 2024-06-18 | LOAN ASSET ISSUER LLC/WEST FINLEY 1 WELL PAD | Pass | State |
| 2024-06-04 | EQM GATHERING OPCO LLC/PISCES COMP STA | Pass | State |
| 2024-05-29 | EQM GATHERING OPCO LLC/PISCES COMP STA | Pass | State |
| 2024-05-24 | GOLDEN EAGLE CONST CO/EIGHTY FOUR PLT | Pass | State |
| 2024-05-16 | ARDEN LDFL/CHARTIERS TWP | Pass | State |
| 2024-05-15 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/REDD COMP STA | Pass | State |
| 2024-04-30 | MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA | Pass | State |
| 2024-04-29 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA | Pass | State |
| 2024-04-24 | EQM GATHERING OPCO LLC/TWILIGHT COMP STA | Pass | State |
| 2024-04-23 | UGI GIBRALTAR GATHERING LLC/GIBRALTAR COMP STA | Pass | State |
| 2024-04-17 | USA SOUTH HILLS LDFL/ UNION TWP | Pass | State |
| 2024-04-17 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | Pass | State |
| 2024-04-16 | MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | Pass | State |
| 2024-04-04 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART | Pass | State |
| 2024-04-03 | MARKWEST LIBERTY MIDSTREAM/DRYER BOOSTER COMP STA | Pass | State |
| 2024-04-03 | EQM GATHERING OPCO LLC/KRYPTONITE COMP STA | Pass | State |
| 2024-04-02 | MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA | Pass | State |
| 2024-04-01 | MARKWEST LIBERTY M&R/TUPTA DAY COMP STA | Pass | State |
| 2024-03-28 | MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA | Pass | State |
| 2024-03-27 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2024-03-26 | MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA | Pass | State |
| 2024-03-26 | EQT PROD CO/MOJO COMPRESSOR UNIT | Pass | State |
| 2024-03-21 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA — high-priority violation on file | Pass | State |
| 2024-03-01 | MARKWEST LIBERTY MIDSTREAM/TIMBERLAKE COMP STA | Pass | State |
| 2024-02-29 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | Pass | State |
| 2024-02-28 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA | Pass | State |
| 2024-02-27 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | Pass | State |
| 2024-02-26 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART | Pass | State |
| 2024-02-21 | MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | Pass | State |
| 2024-02-20 | MARKWEST LIBERTY M&R/TUPTA DAY COMP STA | Pass | State |
| 2024-02-14 | MARKWEST LIBERTY MIDSTREAM/TIMBERLAKE COMP STA | Pass | State |
| 2024-02-02 | K PETROLEUM INC/HACKETT COMP STA — high-priority violation on file | Fail | State |
| 2024-01-16 | EQUITRANS LP/GINGER HILL SITE | Pass | State |
| 2024-01-11 | 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.