EPA Air · stack tests by state and year
Air-emissions stack tests in Pennsylvania, 2022
- 830Stack 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 2022; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Pennsylvania, 2022
- Susquehanna County 98
- Washington County 67
- Lycoming County 48
- Bradford County 46
- Philadelphia County 42
- Greene County 36
- Allegheny County 32
- Tioga County 31
- Butler County 24
- Westmoreland County 22
- Wyoming County 20
- Bucks County 19
- Berks County 17
- Armstrong County 16
- Northampton County 16
- Montgomery County 16
- Clinton County 14
- Indiana County 14
- Lancaster County 13
- Beaver County 13
- Dauphin County 11
- Chester County 10
- Lawrence County 10
- Centre County 10
- Cambria County 10
- Delaware County 10
- Fayette County 10
- Schuylkill County 9
- Clearfield County 9
- York County 9
- Elk County 8
- Potter County 8
- McKean County 8
- Luzerne County 8
- Clarion County 6
- Carbon County 6
- Warren County 6
- Erie County 5
- Mercer County 5
- Lackawanna County 5
- Cumberland County 5
- Columbia County 5
- Jefferson County 5
- Bedford County 4
- Union County 4
- Snyder County 4
- Juniata County 3
- Franklin County 3
- Venango County 3
- Lehigh County 3
- Crawford County 3
- Huntingdon County 3
- Montour County 3
- Sullivan County 3
- Somerset County 3
Pennsylvania, other years
Air-emissions stack tests recorded in Pennsylvania, 2022
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2022-05-17 | EQM GATHERING OPCO LLC/MAKO COMP STA | AMWELL, Washington, PA | Pass | State |
| 2022-05-17 | METALS USA/FALLS TWP — high-priority violation on file | LANGHORNE, Bucks, PA | Fail | State |
| 2022-05-17 | EXPAND OPERATING LLC/ALVAREZ BRA WELL PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2022-05-13 | SNYDER BROS INC/MUSHROOM MINE COMP STA | WORTHINGTON, Armstrong, PA | Pass | State |
| 2022-05-12 | PA STATE UNIV/UNIV PARK CAMPUS | UNIVERSITY PARK, Centre, PA | Pass | State |
| 2022-05-12 | ARDAGH GLASS INC/PORT ALLEGANY PLT — high-priority violation on file | PORT ALLEGANY, McKean, PA | Pass | State |
| 2022-05-12 | SNYDER BROS INC/FURNACE RUN COMP STA | ADRIAN, Armstrong, PA | Pass | State |
| 2022-05-12 | HUMMEL STA LLC/SUNBURY NAT GAS PLT | SHAMOKIN DAM, Snyder, PA | Pass | State |
| 2022-05-12 | EXPAND OPERATING LLC/MASSO SUS PAD | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2022-05-11 | HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file | FLEETWOOD, Berks, PA | Pass | State |
| 2022-05-11 | EQM GATHERING OPCO LLC/TWILIGHT COMP STA | DAISYTOWN, Washington, PA | Pass | State |
| 2022-05-11 | NFG MIDSTREAM CLERMONT LLC/CLERMONT EAST COMP STA | WILCOX, McKean, PA | Pass | State |
| 2022-05-11 | SNYDER BROS INC/AMBROSE COMP STA | ADRIAN, Armstrong, PA | Pass | State |
| 2022-05-11 | HUMMEL STA LLC/SUNBURY NAT GAS PLT | SHAMOKIN DAM, Snyder, PA | Pass | State |
| 2022-05-11 | EXPAND OPERATING LLC/SIVERS BRA PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2022-05-10 | LAUREL MTN MIDSTREAM OPR LLC/BROWN COMP STA | GREENSBORO, Greene, PA | Pass | State |
| 2022-05-10 | PIN OAK ENERGY PARTNERS LLC/APTED COMP STA | GARARDS FORT, Greene, PA | Pass | State |
| 2022-05-10 | NFG MIDSTREAM CLERMONT LLC/CLERMONT WEST COMP STA | EMPORIUM, Elk, PA | Pass | State |
| 2022-05-10 | HUMMEL STA LLC/SUNBURY NAT GAS PLT | SHAMOKIN DAM, Snyder, PA | Pass | State |
| 2022-05-09 | EXPAND OPERATING LLC/JES BRA WELL PAD | WILMONT, Bradford, PA | Pass | State |
| 2022-05-06 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA | AVELLA, Washington, PA | Pass | State |
| 2022-05-06 | SNYDER BROS INC/ENSIGN COMPRESSOR STATION | FREEPORT, Armstrong, PA | Pass | State |
| 2022-05-05 | CRODA INC/DRAKETOWN ROAD | MILL HALL, Clinton, PA | Pass | State |
| 2022-05-05 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2022-05-05 | LAUREL MTN MIDSTREAM OPR LLC/SHAMROCK COMP STA — high-priority violation on file | SALEM, Fayette, PA | Pass | State |
| 2022-05-05 | COLUMBIA GAS TRANS LLC/REDD FARM COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2022-05-05 | MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA | WEST ALEXANDRIA, Washington, PA | Pass | State |
| 2022-05-05 | CABOT OIL & GAS CORP/JEFFERS FARMS PAD 5 | GIBSON, Susquehanna, PA | Pass | State |
| 2022-05-05 | CABOT OIL & GAS CORP/FOLTZ J PAD 1 | HOP BOTTOM, Susquehanna, PA | Pass | State |
| 2022-05-04 | PA DHS/TORRANCE STATE HOSP | TORRANCE, Westmoreland, PA | Pass | State |
| 2022-05-04 | MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | BURGETTSTOWN, Washington, PA | Pass | State |
| 2022-05-04 | EQM GATHERING OPCO LLC/PETTIT COMP STA | HOLBROOK, Greene, PA | Pass | State |
| 2022-05-04 | CABOT OIL & GAS CORP/TEDDICK, M. PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2022-05-04 | COTERRA ENERGY INC/ANDERSON R PAD 1 — high-priority violation on file | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2022-05-04 | COTERRA ENERGY INC/LAMBERT R PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2022-05-03 | SUSQUEHANNA GATHERING CO 1 LLC/CDP 2 | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2022-05-03 | EQM GATHERING OPCO LLC/COLE FARM COMPRESSOR STATION | HOLBROOK, Greene, PA | Pass | State |
| 2022-05-01 | SCRUBGRASS GENERATING PLT/VENANGO — high-priority violation on file | KENNERDELL, Venango, PA | Pass | State |
| 2022-04-29 | CLEVELAND CLIFFS STEELTON LLC/STEELTON | STEELTON, Dauphin, PA | Pass | State |
| 2022-04-29 | HERR FOODS INC/NOTTINGHAM | NOTTINGHAM, Chester, PA | Pass | State |
| 2022-04-29 | WILLIAMS FIELD SVC CO LLC/SNAKE CREEK COMP STA | CLARKS SUMMIT, Susquehanna, PA | Pass | State |
| 2022-04-28 | EQUITRANS LP/RAGER MTN LAUREL RIDGE STA — high-priority violation on file | JOHNSTOWN, Cambria, PA | Fail | State |
| 2022-04-28 | PA STATE UNIV/UNIV PARK CAMPUS | UNIVERSITY PARK, Centre, PA | Pass | State |
| 2022-04-28 | PIONEER CROSSING ENERGY LLC/EXETER | BIRDSBORO, Berks, PA | Pass | State |
| 2022-04-28 | WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2022-04-28 | WILLIAMS FIELD SVC CO LLC/FRASER COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2022-04-28 | GREYLOCK MIDSTREAM LLC/VERES COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2022-04-27 | EPP RENEWABLE ENERGY/NORTHERN TIER LFGTE PLT | WEST BURLINGTON, Bradford, PA | Pass | State |
| 2022-04-27 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/REDD COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2022-04-27 | WILLIAMS FIELD SVC CO LLC/SHIELDS COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2022-04-27 | ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2022-04-26 | COLORCON INC/LOWER SALFORD | HARLEYSVILLE, Montgomery, PA | Pass | State |
| 2022-04-26 | CNX MIDSTREAM OPR CO LLC/MCQUAY COMP STA | CENTER TOWNSHIP, Greene, PA | Pass | State |
| 2022-04-26 | WILLIAMS FIELD SVC CO LLC/WILCOX COMP STA | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2022-04-26 | EQM GATHERING OPCO LLC/TERRA COMP STA | PLUM CREEK, Armstrong, PA | Pass | State |
| 2022-04-26 | EQM GATHERING OPCO LLC/EUROPA COMP STA | CENTER, Greene, PA | Pass | State |
| 2022-04-26 | WESTLAKE PLASTICS CO/MAYFIELD | MAYFIELD, Lackawanna, PA | Pass | State |
| 2022-04-25 | ETC NORTHEAST PIPELINE/REVOLUTION CRYO PLT | BULGER, Washington, PA | Pass | State |
| 2022-04-22 | MERCK SHARP & DOHME LLC/WEST PT | WEST POINT, Montgomery, PA | Pass | State |
| 2022-04-22 | EXPAND OPERATING LLC/CERCA BRA PAD | WYALUSING, Bradford, PA | Pass | State |
| 2022-04-21 | QUAD GRAPHICS MARKETING LLC/CHALFONT | CHALFONT, Bucks, PA | Fail | State |
| 2022-04-21 | PANTHER CREEK POWER OPR LLC/NESQUEHONING | NESQUEHONING, Carbon, PA | Pass | State |
| 2022-04-21 | HERCULES CEMENT CO LLC/STOCKERTOWN | STOCKERTOWN, Northampton, PA | Pass | State |
| 2022-04-21 | SUSQUEHANNA GATHERING CO 1 LLC/CDP 3 | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2022-04-21 | PINE RUN MIDSTREAM LLC/TROUT COMP STA | WORTHINGTON, Armstrong, PA | Pass | State |
| 2022-04-21 | CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA | WIND RIDGE, Greene, PA | Pass | State |
| 2022-04-20 | HYDRO EXTRUSION USA, LLC/CRESSONA | CRESSONA, Schuylkill, PA | Pass | State |
| 2022-04-20 | NEXTERA RENEWABLE FUELS LLC/BLUE RIDGE LDFL | SCOTLAND, Franklin, PA | Pass | State |
| 2022-04-20 | REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA | CANTON, Bradford, PA | Pass | State |
| 2022-04-20 | REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA | CANTON, Bradford, PA | Pass | State |
| 2022-04-20 | EXPAND OPERATING LLC/MCGAVIN WELL PAD | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2022-04-18 | NFG MIDSTREAM COVINGTON LLC/BREON COMP STA | MANSFIELD, Tioga, PA | Pass | State |
| 2022-04-14 | PIXELLE SPEC SOLUTIONS LLC/SPRING GROVE — high-priority violation on file | SPRING GROVE, York, PA | Pass | State |
| 2022-04-14 | LANCASTER CNTY SWMA/SUSQ RESOURCE MGMT COMPLEX — high-priority violation on file | HARRISBURG, Dauphin, PA | Pass | State |
| 2022-04-14 | LAUREL MTN MIDSTREAM OPR LLC/HERMINIE COMP STA | WEST NEWTON, Westmoreland, PA | Pass | State |
| 2022-04-14 | CNX MIDSTREAM OPR CO LLC/HOPEWELL STATION | SYCAMORE, Greene, PA | Pass | State |
| 2022-04-13 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART | MOUNT PLEASANT, Washington, PA | Pass | State |
| 2022-04-12 | CNX MIDSTREAM OPR CO LLC/MAMONT COMP STA | APOLLO, Westmoreland, PA | Pass | State |
| 2022-04-11 | MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2022-04-08 | MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2022-04-07 | ARMSTRONG WORLD IND INC/MARIETTA CEILING PLT | MARIETTA, Lancaster, PA | Pass | State |
| 2022-04-07 | LANCASTER CNTY RRF/ LANCASTER — high-priority violation on file | BAINBRIDGE, Lancaster, PA | Pass | State |
| 2022-04-07 | MARKWEST LIBERTY MIDSTREAM/DRYER BOOSTER COMP STA | AVELLA, Washington, PA | Pass | State |
| 2022-04-07 | CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION | GRAYSVILLE, Greene, PA | Pass | State |
| 2022-04-06 | VITRO FLAT GLASS LLC/CARLISLE — high-priority violation on file | CARLISLE, Cumberland, PA | Pass | State |
| 2022-04-06 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2022-04-06 | MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA | CANONSBURG, Washington, PA | Pass | State |
| 2022-04-06 | APPALACHIA MIDSTREAM SVC LLC/STAGECOACH COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2022-04-05 | TRANSCONTINENTAL GAS/BEAR CREEK STA 515 | BEAR CREEK, Luzerne, PA | Pass | State |
| 2022-04-05 | PEOPLES NATURAL GAS CO/FISHER STA | NEW BETHLEHEM, Armstrong, PA | Pass | State |
| 2022-04-05 | WILLIAMS FIELD SVC CO LLC/TEEL COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2022-04-05 | MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA | BURGETTSTOWN, Washington, PA | Pass | State |
| 2022-04-04 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2022-04-04 | APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2022-04-01 | HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file | FLEETWOOD, Berks, PA | Pass | State |
| 2022-04-01 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA — high-priority violation on file | HICKORY, Washington, PA | Pass | State |
| 2022-04-01 | WCAA MIDSTREAM LLC/WEITZ SOUTH 20 COMP STA | ADAMSBURG, Westmoreland, PA | Pass | State |
| 2022-03-31 | BEFESA ZINC US INC./PALMERTON — high-priority violation on file | PALMERTON, Carbon, PA | Pass | State |
| 2022-03-31 | MM METALS/FALLS | FAIRLESS HILLS, Bucks, PA | Pass | State |
| 2022-03-30 | ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file | CABOT, Butler, PA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.