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 |
|---|---|---|---|---|
| 2024-03-22 | CARLISLE CONST MATERIALS LLC/CARLISLE MFG CAMPUS | CARLISLE, Cumberland, PA | Pass | State |
| 2024-03-22 | EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-03-21 | PECO ENERGY CO/WEST CONSHOHOCKEN GAS PLTW | WEST CONSHOHOCKEN, Montgomery, PA | Pending | State |
| 2024-03-21 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA — high-priority violation on file | HICKORY, Washington, PA | Pass | State |
| 2024-03-21 | REGENCY MARCELLUS GAS GATHERING LLC/ AUBURN STA | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2024-03-21 | EXPAND OPERATING LLC/TI-09-BROWN WELL PAD | LIBERTY, Lycoming, PA | Pass | State |
| 2024-03-21 | EXPAND OPERATING LLC/TI-07 CUPPER WELL PAD | LIBERTY, Tioga, PA | Pass | State |
| 2024-03-21 | EXPAND OPER LLC/TI-46-BLISS WELL PAD | LIBERTY, Tioga, PA | Pass | State |
| 2024-03-20 | TENNESSEE GAS PIPELINE CO LLC/COMP STA 321 | CLIFFORD, Susquehanna, PA | Pass | State |
| 2024-03-20 | HIGHSPIRE TERM DE LLC/HIGHSPIRE TERM | HARRISBURG, Dauphin, PA | Pass | State |
| 2024-03-20 | REPSOL OIL & GAS USA LLC/PUTNAM COMP STA | TROY, Bradford, PA | Pass | State |
| 2024-03-20 | EQM GATHERING OPCO LLC/HALO COMP STA | SYCAMORE, Greene, PA | Pass | State |
| 2024-03-20 | EQT ARO LLC/VARGO COMP STA — high-priority violation on file | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-03-20 | FREEDOM CORRUGATED | HAZLE TOWNSHIP, Luzerne, PA | Pass | State |
| 2024-03-19 | TRANSCONTINENTAL GAS/SALLADASBURG STATION 520 | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-03-19 | ANCHOR CONCRETE FREDONIA PLT | FREDONIA, Mercer, PA | Pass | State |
| 2024-03-19 | NEXTERA RENEWABLE FUELS LLC/CUMBERLAND CNTY LDFL | SHIPPENSBURG, Cumberland, PA | Pass | State |
| 2024-03-19 | NFG MIDSTREAM TROUT RUN LLC/BODINE COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-03-19 | EQT ARO LLC/LARRYS CREEK PAD F COMP STA | SALLADASBURG, Lycoming, PA | Pass | State |
| 2024-03-19 | CHILDRENS HOSP OF PHILADELPHIA/MILLBOURNE | MILLBOURNE, Delaware, PA | Pass | State |
| 2024-03-19 | ENERGY CTR LANCASTER LLC/LANCASTER — high-priority violation on file | LANCASTER, Lancaster, PA | Pass | State |
| 2024-03-19 | TEMPLE UNIV HEALTH SCIENCES CAMPUS/STEAM — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-03-18 | REPSOL OIL & GAS USA LLC/DCNR 010 COMP STA | MORRIS RUN, Tioga, PA | Pass | State |
| 2024-03-14 | REPSOL OIL & GAS LLC/COLE COMP STA | TROY, Bradford, PA | Pass | State |
| 2024-03-14 | EQT ARO LLC/LARRYS CREEK COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-03-14 | EQT ARO LLC/ELBOW PAD B COMP STA — high-priority violation on file | COGAN HOUSE, Lycoming, PA | Pass | State |
| 2024-03-14 | EXPAND OPERATING LLC/SCOTT WELLPAD | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-03-14 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2024-03-13 | LEHIGH WHITE CEMENT CO LLC/YORK | YORK, York, PA | Pass | State |
| 2024-03-13 | GILBERTON POWER CO/JOHN B RICH MEM POWER STA | FRACKVILLE, Schuylkill, PA | Pass | State |
| 2024-03-13 | NEXTERA RENEWABLE FUELS LLC/FREY FARM CRESWELL LDFL | CONESTOGA, Lancaster, PA | Pass | State |
| 2024-03-13 | REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA | MONTOURSVILLE, Lycoming, PA | Pass | State |
| 2024-03-13 | EXPAND OPERATING LLC/GU-G SOUTH WELL PAD | WYALUSING, Bradford, PA | Pass | State |
| 2024-03-13 | EXPAND OPERATING LLC/BLYE WELL PAD | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-03-13 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2024-03-12 | DBA GUILFORD PERFORMANCE TEXTILES BY LEAR CORP/PINE GROVE | PINE GROVE, Schuylkill, PA | Pass | State |
| 2024-03-12 | SCRUBGRASS GENERATING PLT/VENANGO — high-priority violation on file | KENNERDELL, Venango, PA | Pass | State |
| 2024-03-12 | REPSOL OIL & GAS USA LLC/WATKINS HILL RD | COLUMBIA CROSS ROADS, Bradford, PA | Pass | State |
| 2024-03-12 | APPALACHIA MIDSTREAM SVC LLC/STAGECOACH COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2024-03-12 | EQT ARO LLC/TRACT 285 COMP STA | NORTH BEND, Clinton, PA | Pass | State |
| 2024-03-12 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Pass | State |
| 2024-03-12 | REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA | CANTON, Bradford, PA | Pass | State |
| 2024-03-12 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2024-03-11 | EQT ARO LLC/COP TRACT 685 COMP STA — high-priority violation on file | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-03-11 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Pass | State |
| 2024-03-08 | NEW ENTERPRISE STONE & LIME CO INC/EVANSVILLE QUARRY | FLEETWOOD, Berks, PA | Pass | State |
| 2024-03-08 | UGI TEXAS CREEK LLC/PIERSON 810 COMP STA | GAINES, Tioga, PA | Pass | State |
| 2024-03-08 | REPSOL OIL & GAS USA LLC/EDSELL COMP STA | LE RAYSVILLE, Bradford, PA | Pass | State |
| 2024-03-07 | SILGAN WHITE CAP/HAZLETON PLT | HAZLE TOWNSHIP, Luzerne, PA | Pass | State |
| 2024-03-07 | JOHNSON MATTHEY INC/SMITHFIELD — high-priority violation on file | SMITHFIELD, Fayette, PA | Pass | State |
| 2024-03-07 | EQT ARO LLC/TRACT 289 COMP STA — high-priority violation on file | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-03-07 | NATL FUEL GAS SUPPLY CORP/MARVINDALE COMP STA | MOUNT JEWETT, McKean, PA | Pass | State |
| 2024-03-07 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2024-03-07 | SOUTHEASTERN PENNSYLVANIA TRANSPORTATION — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-03-07 | SOUTHEASTERN PENNSYLVANIA TRANSPORTATION — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-03-06 | TENNESSEE GAS PIPELINE CO LLC/STA 310 | CLERMONT, McKean, PA | Pass | State |
| 2024-03-06 | MARKWEST LIBERTY BLUESTONE LLC/VOLL COMP STA | EVANS CITY, Butler, PA | Pass | State |
| 2024-03-06 | MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT | EVANS CITY, Butler, PA | Pass | State |
| 2024-03-06 | APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2024-03-06 | EXPAND OPERATING LLC/CERCA BRA PAD | WYALUSING, Bradford, PA | Pass | State |
| 2024-03-05 | DART CONTAINER CORP/LEOLA | LEOLA, Lancaster, PA | Pass | State |
| 2024-03-05 | TRANSCONTINENTAL GAS/BEAR CREEK STA 515 | BEAR CREEK, Luzerne, PA | Pass | State |
| 2024-03-05 | PIN OAK MIDSTREAM LLC/HURTT COMP STA | NEW WILMINGTON, Mercer, PA | Fail | State |
| 2024-03-05 | REPSOL OIL & GAS USA LLC/THOMAS COMP STA | TROY, Bradford, PA | Pass | State |
| 2024-03-05 | REPSOL OIL& GAS USA LLC/REPINE COMP STA | LITTLE MEADOWS, Susquehanna, PA | Pass | State |
| 2024-03-05 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2024-03-04 | NATL FUEL GAS SUPPLY/ELLISBURG STA | ELLISBURG, Potter, PA | Pass | State |
| 2024-03-01 | MARKWEST LIBERTY MIDSTREAM/TIMBERLAKE COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2024-02-29 | NORTHAMPTON GEN CO/NORTHAMPTON | NORTHAMPTON, Northampton, PA | Pass | State |
| 2024-02-29 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2024-02-28 | BEFESA ZINC US INC./PALMERTON — high-priority violation on file | PALMERTON, Carbon, PA | Pass | State |
| 2024-02-28 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA | AVELLA, Washington, PA | Pass | State |
| 2024-02-28 | REPSOL OIL AND GAS USA/TRACT 587 SFL COMP STA | CANTON, Tioga, PA | Pass | State |
| 2024-02-28 | REGENCY MARCELLUS GAS GATHERING LLC/MEHOOPANY STA | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2024-02-28 | WILLIAMS FIELD SVC CO/MACNEW COMP STA | HOP BOTTOM, Susquehanna, PA | Pass | State |
| 2024-02-27 | WESTMORELAND SANITARY LDFL LLC/BELLE VERNON — high-priority violation on file | BELLE VERNON, Westmoreland, PA | Pass | State |
| 2024-02-27 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2024-02-27 | NRG ENERGY CTR PGH LLC/PGH | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-02-26 | WESTMORELAND SANITARY LDFL LLC/BELLE VERNON — high-priority violation on file | BELLE VERNON, Westmoreland, PA | Fail | State |
| 2024-02-26 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART | MOUNT PLEASANT, Washington, PA | Pass | State |
| 2024-02-26 | NATL FUEL GAS SUPPLY CORP/KEELOR COMP STA | KANE, McKean, PA | Pass | State |
| 2024-02-23 | WOODGRAIN INC/FIBER DIV PA | TOWANDA, Bradford, PA | Pass | State |
| 2024-02-23 | RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file | TREMONT, Schuylkill, PA | Pass | State |
| 2024-02-23 | DIVERSIFIED PROD LLC/HENRY COMP STA | MARION CENTER, Indiana, PA | Pass | State |
| 2024-02-23 | CANPACK US LLC/OLYPHANT — high-priority violation on file | PHILADELPHIA, Lackawanna, PA | Pending | State |
| 2024-02-22 | PANTHER CREEK POWER OPR LLC/NESQUEHONING | NESQUEHONING, Carbon, PA | Pass | State |
| 2024-02-22 | NFG MIDSTREAM COVINGTON LLC/TRACT 007 COMP STA | WELLSBORO, Tioga, PA | Pass | State |
| 2024-02-21 | PA STATE UNIV/UNIV PARK CAMPUS | UNIVERSITY PARK, Centre, PA | Pass | State |
| 2024-02-21 | WOODGRAIN INC/FIBER DIV PA | TOWANDA, Bradford, PA | Pass | State |
| 2024-02-21 | SPS TECH INC/ABINGTON | JENKINTOWN, Montgomery, PA | Pass | State |
| 2024-02-21 | NFG MIDSTREAM COVINGTON LLC/COVINGTON COMP STA | COVINGTON, Tioga, PA | Pass | State |
| 2024-02-21 | MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | BURGETTSTOWN, Washington, PA | Pass | State |
| 2024-02-21 | NFG MIDSTREAM COVINGTON LLC/LAWTON COMP STA | WELLSBORO, Tioga, PA | Pass | State |
| 2024-02-21 | MOORE, S. PAD 1 | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-02-21 | US STEEL CORP/IRVIN PLT | WEST MIFFLIN, Allegheny, PA | Pass | Local |
| 2024-02-21 | US STEEL CORP/IRVIN PLT | WEST MIFFLIN, Allegheny, PA | Pass | Local |
| 2024-02-20 | TRANSCONTINENTAL GAS/JACKSON TWP STA 517 | BENTON, Columbia, PA | Pass | State |
| 2024-02-20 | MARKWEST LIBERTY M&R/TUPTA DAY COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2024-02-20 | EXCO APPALACHIA MIDSTREAM LLC/SAWMILL COMP STA | KITTANNING, Armstrong, PA | Pass | State |
| 2024-02-20 | WOOD, E. PAD 1 | MONTROSE, Susquehanna, PA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.