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 |
|---|---|---|---|---|
| 2024-09-30 | EAST PENN MFG CO INC/SMELTER PLT | LYONS, Berks, PA | Pass | State |
| 2024-09-30 | BKV OPR LLC/P & G WAREHOUSE PAD | MESHOPPEN, Wyoming, PA | Pass | State |
| 2024-09-27 | EDDYSTONE MARINE & RAIL TERM CO/EDDYSTONE | EDDYSTONE, Delaware, PA | Pass | State |
| 2024-09-26 | VITRO MEADVILLE FLAT GLASS MEADVILLE PLT/CRAWFORD | COCHRANTON, Crawford, PA | Pass | State |
| 2024-09-26 | RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file | TREMONT, Schuylkill, PA | Pass | State |
| 2024-09-26 | HILCORP ENERGY CO/MAHONING BUCKER PROD FAC — high-priority violation on file | EDINBURG, Lawrence, PA | Pass | State |
| 2024-09-26 | IVY HILL CEMETERY COMPANY | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-09-26 | IVY HILL CEMETERY COMPANY | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-09-26 | IVY HILL CEMETERY COMPANY | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-09-25 | EQUITRANS LP/RAGER MTN LAUREL RIDGE STA — high-priority violation on file | JOHNSTOWN, Cambria, PA | Pass | State |
| 2024-09-25 | EQUITRANS LP/RAGER MTN LAUREL RIDGE STA — high-priority violation on file | JOHNSTOWN, Cambria, PA | Pass | State |
| 2024-09-25 | HAYSITE REINFORCED PLASTICS LLC/ERIE — high-priority violation on file | ERIE, Erie, PA | Pass | State |
| 2024-09-25 | EQT ARO LLC/COP TRACT 685 COMP STA — high-priority violation on file | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-09-25 | EQT ARO LLC/VARGO COMP STA — high-priority violation on file | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-09-24 | INTL WAXES INC/FARMERS VALLEY | SMETHPORT, McKean, PA | Pass | State |
| 2024-09-24 | RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file | TREMONT, Schuylkill, PA | Pass | State |
| 2024-09-24 | REGENCY MARCELLUS GATHERING LLC/BRADFORD WEST COMP STA | GRANVILLE SUMMIT, Bradford, PA | Pass | State |
| 2024-09-24 | CARLISLE CONST MATLS/HUNTER PANEL PLT — high-priority violation on file | SMITHFIELD, Fayette, PA | Pass | State |
| 2024-09-24 | PERDUE AGRIBUSINESS LLC/BAINBRIDGE — high-priority violation on file | MARIETTA, Lancaster, PA | Pass | State |
| 2024-09-24 | EQT ARO LLC/LARRYS CREEK COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-09-24 | REV LNG SSL BC LLC/NICHE LNG LLC - TOWANDA FAC | WYALUSING, Bradford, PA | Pass | State |
| 2024-09-24 | PHILADELPHIA CREMATORIES | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-09-24 | PHILADELPHIA CREMATORIES | PHILADELPHIA, Philadelphia, PA | Pending | Local |
| 2024-09-23 | REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA | CUMMINS TWP, Lycoming, PA | Pass | State |
| 2024-09-23 | WILLIAMS FIELD SVC CO LLC/CENTRAL COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-09-21 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Pass | State |
| 2024-09-19 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/GODWIN COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2024-09-19 | TENNESSEE GAS PIPELINE/COMP STA 303 | JAMESTOWN, Venango, PA | Pass | State |
| 2024-09-19 | REGENCY MARCELLUS GAS GATHERING LLC/MEHOOPANY STA | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2024-09-19 | EXPAND OPERATING LLC/RU-75 SGL-A WELLPAD | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-09-19 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2024-09-18 | DNP IMS AMER/SONY TECH CTR NEW STANTON | MOUNT PLEASANT, Westmoreland, PA | Pass | State |
| 2024-09-18 | TENNESSEE GAS PIPELINE CO LLC/STA 310 | CLERMONT, McKean, PA | Pass | State |
| 2024-09-18 | WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2024-09-18 | WILLIAMS FIELD SVC CO LLC/SHASKAS COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-09-18 | NFG MIDSTREAM TROUT RUN LLC/BODINE COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-09-18 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Pass | State |
| 2024-09-18 | EXPAND OPERATING LLC/RU-71 BLUE BECK WELLPAD | MILFORD, Susquehanna, PA | Pass | State |
| 2024-09-18 | EXPAND OPERATING LLC/RU-47 KARMAZIN PAD | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2024-09-17 | TENNESSEE GAS PIPELINE CO/315 WELLSBORO | WELLSBORO, Tioga, PA | Pass | State |
| 2024-09-17 | KEYSTONE PORTLAND CEMENT/EAST ALLEN — high-priority violation on file | BATH, Northampton, PA | Pass | State |
| 2024-09-17 | NFG MIDSTREAM COVINGTON LLC/CLARK COMP STA | MAINESBURG, Tioga, PA | Pass | State |
| 2024-09-17 | EXPAND OPERATING LLC/RU-46 DROPP WELLPAD | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2024-09-16 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2024-09-13 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pending | State |
| 2024-09-13 | LIBERTY PULTRUSIONS/WEST MIFFLIN | WEST MIFFLIN, Allegheny, PA | Pass | Local |
| 2024-09-13 | LIBERTY PULTRUSIONS/WEST MIFFLIN | WEST MIFFLIN, Allegheny, PA | Pass | Local |
| 2024-09-12 | GOLDEN EAGLE CONST CO/COOLSPRING ASPHALT PLT | UNIONTOWN, Fayette, PA | Pass | State |
| 2024-09-12 | HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file | FLEETWOOD, Berks, PA | Pass | State |
| 2024-09-12 | EXPAND OPERATING LLC/JOHN MCMURRAY WELLPAD | WEST ALEXANDER, Washington, PA | Pass | State |
| 2024-09-12 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2024-09-11 | JANSSEN RESEARCH & DEVELOPMENT LLC/LOWER GWYNEDD | SPRING HOUSE, Montgomery, PA | Pass | State |
| 2024-09-11 | LAUREL MTN MIDSTREAM OPR LLC/HERMINIE COMP STA | WEST NEWTON, Westmoreland, PA | Pass | State |
| 2024-09-11 | MARKWEST LIBERTY MID & RES / HOSKINS BOOSTER COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2024-09-11 | CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION | GRAYSVILLE, Greene, PA | Pass | State |
| 2024-09-11 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Fail | State |
| 2024-09-10 | MAGNESITA REFRACTORIES/YORK — high-priority violation on file | YORK, York, PA | Pass | State |
| 2024-09-10 | COLUMBIA GAS TRANS CORP/SALISBURY COMP STA | SALISBURY, Somerset, PA | Pass | State |
| 2024-09-10 | APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2024-09-09 | MILAN ENERGY LLC/ELECTRIC GENERATING STATION | MILAN, Bradford, PA | Pass | State |
| 2024-09-06 | OXBOW CREEK ENERGY LLC/ FACTORYVILLE | FACTORYVILLE, Wyoming, PA | Fail | State |
| 2024-09-05 | BEAVER DAM ENERGY LLC/ELECTRIC GENERATING STATION | CANTON, Bradford, PA | Pass | State |
| 2024-09-05 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Pass | State |
| 2024-09-05 | REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA | CANTON, Bradford, PA | Pass | State |
| 2024-09-05 | EM RESOURCES LLC/MONTOUR PLT | DANVILLE, Montour, PA | Pending | State |
| 2024-09-05 | BYLER QUARRIES LLC/FIDDLERS ELBOW QUARRY S | MIDDLETOWN, Dauphin, PA | Fail | State |
| 2024-09-05 | EXPAND OPER LLC/GU-N HEBDA VANDEMARK PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2024-09-04 | EQUITRANS LP/RAGER MTN LAUREL RIDGE STA — high-priority violation on file | JOHNSTOWN, Cambria, PA | Pass | State |
| 2024-09-04 | HEIDELBERG MATERIALS NE LLC /PERKIOMENVILLE — high-priority violation on file | PERKIOMENVILLE, Montgomery, PA | Pass | State |
| 2024-09-04 | NFG MIDSTREAM COVINGTON LLC/DCNR TRACT 595 | ARNOT, Tioga, PA | Pass | State |
| 2024-09-04 | REGENCY MARCELLUS GAS GATHERING LLC/ AUBURN STA | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2024-09-03 | STECKMAN RIDGE LP/CLEARVILLE | CLEARVILLE, Bedford, PA | Pass | State |
| 2024-09-03 | ALPACA ENERGY LLC/ELECTRIC GENERATING STA | CANTON, Bradford, PA | Pass | State |
| 2024-08-30 | SCHUYLKILL ENERGY RES/ST NICHOLAS COGEN — high-priority violation on file | SHENANDOAH, Schuylkill, PA | Pass | State |
| 2024-08-30 | MINARD RUN OIL CO/GUITON RUN COMP STA | MARIENVILLE, Forest, PA | Pass | State |
| 2024-08-29 | LEHIGH WHITE CEMENT CO LLC/YORK | YORK, York, PA | Pass | State |
| 2024-08-29 | APPALACHIA MIDSTREAM SVC LLC/GRANVILLE STA 2 | GRANVILLE SUMMIT, Bradford, PA | Pass | State |
| 2024-08-29 | UGI MORAINE EAST GATHERING LLC/RENICK COMP STA | WEST SUNBURY, Butler, PA | Pass | State |
| 2024-08-29 | ALTA PERFORMANCE MATERIALS US, LLC | PITTSBURGH, Allegheny, PA | Fail | Local |
| 2024-08-29 | ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-08-29 | ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-08-28 | FRY COMMUNICATIONS INC/BLDG 3 | MECHANICSBURG, Cumberland, PA | Pass | State |
| 2024-08-28 | SWN PROD CO LLC/DEPUE COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-08-28 | SWN PROD CO FIONDI SITE COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-08-28 | RIVERWEST APPALACHIA MIDSTREAM LLC/CLINTON COMP STA | SARVER, Butler, PA | Pass | State |
| 2024-08-28 | EQM GATHERING OPCO LLC/STEELHEAD COMP STA | MARIANNA, Washington, PA | Pass | State |
| 2024-08-28 | JKLM ENERGY LLC/HEADWATERS 145 WELL PAD | ULYSSES, Potter, PA | Pass | State |
| 2024-08-28 | EXPAND OPERATING LLC/NICKOLYN WELL PAD | AUBURN, Susquehanna, PA | Pass | State |
| 2024-08-27 | EASTERN GAS TRANS & STORAGE/PUNXSUTAWNEY | PUNXSUTAWNEY, Jefferson, PA | Pass | State |
| 2024-08-27 | REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA | COGAN STA, Lycoming, PA | Pass | State |
| 2024-08-27 | HERSHEY CO/WWTP | HERSHEY, Dauphin, PA | Pass | State |
| 2024-08-27 | EXPAND OPERATING LLC/NOWICKI PAD NR25 | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2024-08-26 | APPALACHIA MIDSTREAM SVC LLC/STONEHOUSE COMP STA | RUSH, Susquehanna, PA | Pass | State |
| 2024-08-26 | LAUREL HILL PAD A 12635 | LIBERTY, Lycoming, PA | Pass | State |
| 2024-08-23 | ALTOONA TERM DE LLC/ALTOONA | DUNCANSVILLE, Blair, PA | Pass | State |
| 2024-08-23 | XTO ENERGY HOMER CITY PP COMP STA/INDIANA — high-priority violation on file | HOMER CITY, Indiana, PA | Pass | State |
| 2024-08-23 | XTO ENERGY INC/WINSLOW | REYNOLDSVILLE, Jefferson, PA | Pass | State |
| 2024-08-23 | PINE RUN MIDSTREAM LLC/TROUT COMP STA | WORTHINGTON, Armstrong, PA | Pass | State |
| 2024-08-22 | GEORGIA PACIFIC PANEL PRODUCTS LLC/MOUNT JEWETT MDF | KANE, McKean, PA | Pass | State |
| 2024-08-22 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.