EPA Air · stack tests by state and year
Air-emissions stack tests in Pennsylvania, 2024
- 905Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Pennsylvania during 2024; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Pennsylvania, 2024
- Susquehanna County 136
- Washington County 66
- Bradford County 54
- Allegheny County 52
- Philadelphia County 44
- Lycoming County 43
- Greene County 40
- Tioga County 37
- Wyoming County 27
- Armstrong County 24
- Butler County 23
- Westmoreland County 19
- Indiana County 18
- Lancaster County 18
- Beaver County 17
- Luzerne County 16
- Delaware County 16
- Montgomery County 16
- Berks County 14
- McKean County 12
- Schuylkill County 12
- Fayette County 12
- Northampton County 10
- York County 10
- Jefferson County 10
- Dauphin County 9
- Mercer County 9
- Clinton County 8
- Lawrence County 8
- Bucks County 8
- Chester County 7
- Montour County 7
- Potter County 7
- Cambria County 6
- Lackawanna County 6
- Juniata County 5
- Erie County 5
- Centre County 5
- Carbon County 5
- Crawford County 5
- Elk County 5
- Cumberland County 4
- Columbia County 4
- Venango County 4
- Blair County 4
- Clarion County 4
- Somerset County 4
- Clearfield County 3
- Warren County 3
- Adams County 3
- Sullivan County 3
- Franklin County 3
- Huntingdon County 3
Pennsylvania, other years
Air-emissions stack tests recorded in Pennsylvania, 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-02-20 | STODDARD, T. PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2024-02-19 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/MCMICHAEL COMP STA | CLINTON, Beaver, PA | Pass | State |
| 2024-02-19 | HALLIDAY, A. PAD 1 | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-02-19 | CORBIN, J. PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2024-02-16 | EXPAND OPERATING LLC/FOLTA BRA PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2024-02-16 | FLOWER, T. PAD 1 | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2024-02-15 | LAUREL MTN MIDSTREAM OPR LLC/CANTARAL COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2024-02-15 | MAINESBURG GS LP/WELLS COMP STA | COVINGTON, Tioga, PA | Fail | State |
| 2024-02-15 | EXPAND T BROWN WELL COMPRESSOR | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2024-02-14 | WILLIAMS-TRANSCO/COMPRESSOR STA 610 | MILLVILLE, Columbia, PA | Pass | State |
| 2024-02-14 | TRANSCONTINENTAL GAS PIPELINE CO LLC/ COMP STA 620 | HEGINS TOWNSHIP, Schuylkill, PA | Pass | State |
| 2024-02-14 | MARKWEST LIBERTY MIDSTREAM/TIMBERLAKE COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2024-02-13 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2024-02-13 | BKV OPERATING LLC/BAKER WEST COMPRESSOR STATION | FORREST LAKE TWP, Susquehanna, PA | Pass | State |
| 2024-02-13 | CHIEF OIL & GAS TAGUE WEST COMPRESSOR | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2024-02-13 | TRANSCONTINENTAL GAS PIPELINE CO LLC/ COMP STA 607 | SWEET VALLEY, Luzerne, PA | Pass | State |
| 2024-02-13 | VICINITY ENERGY/SCHUYLKILL STA — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-02-12 | VICINITY ENERGY EDISON/PHILA — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-02-08 | PEPPERIDGE FARM INC/EAST COCALICO TWP PLT | DENVER, Lancaster, PA | Fail | State |
| 2024-02-08 | APPALACHIA MIDSTREAM SVC LLC/AUBURN COMP STA | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2024-02-08 | NRG ENERGY CTR PGH LLC/PGH | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-02-07 | SPECIALTY GRANULES INC/CHARMIAN — high-priority violation on file | BLUE RIDGE SUMMIT, Adams, PA | Pass | State |
| 2024-02-07 | SUSQUEHANNA GATHERING/NORTH RANGE CPF 1 COMP STA | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2024-02-07 | INFINITY NATURAL RESOURCES SOUTH BEND COMP STA | SOUTH BEND TWP, Armstrong, PA | Pass | State |
| 2024-02-06 | COLUMBIA GAS TRANS CORP/MARIETTA | MARIETTA, Lancaster, PA | Pass | State |
| 2024-02-06 | INR MIDSTREAM LLC/WEST SUMMIT COMP STA | LAKE LYNN, Fayette, PA | Pass | State |
| 2024-02-06 | APPALACHIA MIDSTREAM SVC LLC/RATTLESNAKE HILL COMP STA | AUBURN TOWNSHIP, Susquehanna, PA | Pass | State |
| 2024-02-06 | SUSQUEHANNA GATHERING/CDP 1 COMP STA | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-02-06 | EXPAND OPERATING LLC/KATHRYN BRA PAD | WYALUSING, Bradford, PA | Pass | State |
| 2024-02-06 | NRG ENERGY CTR PGH LLC/PGH | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-02-06 | VICINITY ENERGY EFFICIENCY PA, LLC — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-02-06 | VICINITY ENERGY EFFICIENCY PA, LLC — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-02-06 | METRO CREMATORY & TRADERS, INC. | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-02-05 | BLUESTONE PIPELINE/CDP#1-A | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-02-05 | EXPAND OPERATING LLC/LIGHTCAP BRA PAD | FORKSVILLE, Bradford, PA | Pass | State |
| 2024-02-03 | EXPAND OPERATING LLC/KAUFMANN WELL PAD | NEW ALBANY, Bradford, PA | Pass | State |
| 2024-02-02 | K PETROLEUM INC/HACKETT COMP STA — high-priority violation on file | BENTLEYVILLE, Washington, PA | Fail | State |
| 2024-02-01 | SVC MFG INC/MOUNTAIN TOP | MOUNTAIN TOP, Luzerne, PA | Fail | State |
| 2024-02-01 | SUSQUEHANNA GATHERING/CDP 1 COMP STA | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-02-01 | GLAXOSMITHKLINE/UPPER MERION EAST | KING OF PRUSSIA, Montgomery, PA | Pass | State |
| 2024-02-01 | UNIV OF PGH/PGH CAMPUS | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-01-31 | RANGE RESOURCES APPALACHIA LLC/LAUREL HILL G | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-01-31 | UNIV OF PGH/PGH CAMPUS | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-01-31 | UNIV OF PGH/PGH CAMPUS | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-01-31 | VICINITY ENERGY EDISON/PHILA — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-01-30 | PEPPERIDGE FARM INC/EAST COCALICO TWP PLT | DENVER, Lancaster, PA | Pass | State |
| 2024-01-30 | ENERGY TRANSF MKT & TERM LP/MARCUS HOOK TERM — high-priority violation on file | MARCUS HOOK, Delaware, PA | Pass | State |
| 2024-01-30 | VICINITY ENERGY EDISON/PHILA — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-01-26 | USS CORP/EDGAR THOMSON WORKS — high-priority violation on file | BRADDOCK, Allegheny, PA | Pass | Local |
| 2024-01-25 | AMCOR FLEXIBLES NORTH AMER INC/HAZLETON | HAZLETON, Luzerne, PA | Fail | State |
| 2024-01-25 | NFG MIDSTREAM CLERMONT LLC/RICH VALLEY COMP STA | EMPORIUM, Cameron, PA | Pass | State |
| 2024-01-25 | WILLIAMS FIELD SVC CO/MACNEW COMP STA | HOP BOTTOM, Susquehanna, PA | Pass | State |
| 2024-01-25 | USS CORP/EDGAR THOMSON WORKS — high-priority violation on file | BRADDOCK, Allegheny, PA | Pass | Local |
| 2024-01-24 | M SIMON ZOOK CO DBA GOLDEN BARREL PROD/LEOLA | LEOLA, Lancaster, PA | Pass | State |
| 2024-01-24 | EQM GATHERING OPCO LLC/JUPITER COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2024-01-24 | REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-01-24 | WILLIAMS FIELD SVC CO LLC/CHURCH COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2024-01-24 | COMMANDER NAVY REGION MIDATLANTIC/HOST S | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-01-23 | ETC NORTHEAST PIPELINE LLC/BARTO COMP STA | HUGHESVILLE, Lycoming, PA | Pass | State |
| 2024-01-23 | EQM GATHERING OPCO LLC/JUPITER COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2024-01-23 | USS CORP/EDGAR THOMSON WORKS — high-priority violation on file | BRADDOCK, Allegheny, PA | Pass | Local |
| 2024-01-23 | USS CORP/EDGAR THOMSON WORKS — high-priority violation on file | BRADDOCK, Allegheny, PA | Fail | Local |
| 2024-01-22 | NATL FUEL GAS SUPPLY CORP/MERCER COMP STA | MERCER, Mercer, PA | Pass | State |
| 2024-01-18 | NATIONAL FUEL GAS SUPPLY CORP/TAMARACK COMP STA | CROSS FORK, Clinton, PA | Pass | State |
| 2024-01-17 | VAN HOEKELEN GREENHOUSES INC/MCADOO | MCADOO, Schuylkill, PA | Pass | State |
| 2024-01-17 | EQM GATHERING OPCO LLC/IO COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2024-01-17 | EXPAND OPERATING LLC/WOOSMAN PAD | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-01-16 | EQUITRANS LP/GINGER HILL SITE | FINLEYVILLE, Washington, PA | Pass | State |
| 2024-01-12 | WILLIAMS FIELD SVC CO LLC/CENTRAL COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-01-11 | COLUMBIA GAS TRANS CORP/HELLERTOWN CT | HELLERTOWN, Northampton, PA | Pass | State |
| 2024-01-11 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2024-01-11 | PENN MED LANCASTER GEN HOSP/LANCASTER GEN HOSP | LANCASTER, Lancaster, PA | Pass | State |
| 2024-01-11 | EXCO APPALACHIA MIDSTREAM LLC/POVERTY HILL COMP STA | KITTANNING, Armstrong, PA | Pass | State |
| 2024-01-11 | WILLIAMS FIELD SVC CO LLC/GIBSON COMP STA | SOUTH GIBSON, Susquehanna, PA | Pass | State |
| 2024-01-11 | EQM GATHERING OPCO LLC/BLUE MOON COMP STA | DAISYTOWN, Washington, PA | Pass | State |
| 2024-01-11 | EXPAND OPERATING LLC/JOEGUSWA WELL PAD | DUSHORE, Sullivan, PA | Pass | State |
| 2024-01-11 | HEP PA GATHERING LLC/MARSHALL BOOSTER COMP STA | ROARING BRANCH, Lycoming, PA | Pass | State |
| 2024-01-11 | NIAGARA BOTTLING HAZLE PLANT | HAZLETON, Luzerne, PA | Pass | State |
| 2024-01-11 | PPG IND INC/SPRINGDALE | SPRINGDALE, Allegheny, PA | Pass | Local |
| 2024-01-10 | GEISINGER MED CTR/DANVILLE | DANVILLE, Montour, PA | Pass | State |
| 2024-01-10 | NEW CASTLE POWER LLC/NEW CASTLE GENERATING STATION | WEST PITTSBURG, Lawrence, PA | Pending | State |
| 2024-01-10 | COLUMBIA GAS TRANS CORP/GREENCASTLE | GREENCASTLE, Franklin, PA | Pass | State |
| 2024-01-10 | JOHNSON MATTHEY INC/SMITHFIELD — high-priority violation on file | SMITHFIELD, Fayette, PA | Fail | State |
| 2024-01-10 | MATHESON TRI GAS/UPPER HANOVER | PALM, Montgomery, PA | Pass | State |
| 2024-01-10 | NATL FUEL GAS SUPPLY CORP/MERCER COMP STA | MERCER, Mercer, PA | Pass | State |
| 2024-01-10 | HEP PENNSYLVANIA GATHERING LLC/TIOGA CPF#2 COMP STA | LIBERTY, Tioga, PA | Pass | State |
| 2024-01-10 | UGI AUBURN GATHERING LLC/ANDERSON COMP STA | NEW RINGGOLD, Susquehanna, PA | Pass | State |
| 2024-01-10 | BRIGHTSMITH LLC/FALLS TWP | MORRISVILLE, Bucks, PA | Fail | State |
| 2024-01-10 | PPG IND INC/SPRINGDALE | SPRINGDALE, Allegheny, PA | Pass | Local |
| 2024-01-09 | NFG MIDSTREAM COVINGTON LLC/MATZ COMP STA | CHATHAM, Tioga, PA | Fail | State |
| 2024-01-09 | SWN PRODUCTION CO LLC/KING NORTH 3H | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-01-09 | EXPAND OPERATING LLC/STONE BRA PAD | WYALUSING, Bradford, PA | Pass | State |
| 2024-01-08 | SUSQUEHANNA GATHERING CO 1 LLC/CDP 3 | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-01-05 | REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ EAST COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-01-05 | ALLEGHENY CNTY SANI AUTH/ALLEGHENY CNTY | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-01-04 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2024-01-04 | SWARTHMORE COLLEGE/SWARTHMORE | SWARTHMORE, Delaware, PA | Pass | State |
| 2024-01-04 | AQUA PA INC/PICKERING WATER TRMT PLT | PHOENIXVILLE, Chester, PA | Pass | State |
| 2024-01-04 | EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-01-04 | EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file | TROUT RUN, Lycoming, PA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.