EPA Air · stack tests by state and year

Air-emissions stack tests in Pennsylvania, 2023

889Stack 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 2023; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Pennsylvania, 2023

Pennsylvania, other years

Air-emissions stack tests recorded in Pennsylvania, 2023

Date	Facility	Where	Kind	Agency
2023-03-16	REPSOL OIL & GAS USA LLC/WATKINS HILL RD	COLUMBIA CROSS ROADS, Bradford, PA	Pass	State
2023-03-16	EQT ARO LLC/TRACT 289 COMP STA — high-priority violation on file	JERSEY SHORE, Lycoming, PA	Pass	State
2023-03-16	UPPER MORELAND HATBORO JT SEW AUTH/WILLOW GROVE	WILLOW GROVE, Montgomery, PA	Pass	State
2023-03-15	AMRIZE CEMENT INC/WHITEHALL PLT — high-priority violation on file	WHITEHALL, Lehigh, PA	Pass	State
2023-03-15	JMG ENERGY LLC/DEER CREEK COMP STA — high-priority violation on file	MERCER, Mercer, PA	Pass	State
2023-03-15	EQT ARO LLC/TRACT 285 COMP STA	NORTH BEND, Clinton, PA	Pass	State
2023-03-15	WILLIAMS FIELD SVC CO/MACNEW COMP STA	HOP BOTTOM, Susquehanna, PA	Pass	State
2023-03-14	GILBERTON POWER CO/JOHN B RICH MEM POWER STA	FRACKVILLE, Schuylkill, PA	Pass	State
2023-03-14	REPSOL OIL & GAS LLC/COLE COMP STA	TROY, Bradford, PA	Pass	State
2023-03-14	EQT ARO LLC/COP TRACT 685 COMP STA — high-priority violation on file	JERSEY SHORE, Lycoming, PA	Pass	State
2023-03-12	PANTHER CREEK POWER OPR LLC/NESQUEHONING	NESQUEHONING, Carbon, PA	Pass	State
2023-03-10	REPSOL OIL & GAS USA LLC/EDSELL COMP STA	LE RAYSVILLE, Bradford, PA	Pass	State
2023-03-10	MARKWEST LIBERTY MIDSTREAM & RESOURCES/MCMICHAEL COMP STA	CLINTON, Beaver, PA	Pass	State
2023-03-09	VITRO MEADVILLE FLAT GLASS MEADVILLE PLT/CRAWFORD	COCHRANTON, Crawford, PA	Pass	State
2023-03-09	RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file	TREMONT, Schuylkill, PA	Pass	State
2023-03-09	FR&S INC/PIONEER CROSSING LDFL	BIRDSBORO, Berks, PA	Fail	State
2023-03-09	REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA	COGAN STA, Lycoming, PA	Pass	State
2023-03-08	ELWYN/MIDDLETOWN TWP — high-priority violation on file	ELWYN, Delaware, PA	Pass	State
2023-03-08	MARKWEST LIBERTY BLUESTONE LLC/VOLL COMP STA	EVANS CITY, Butler, PA	Pass	State
2023-03-08	UGI TEXAS CREEK LLC/CASTLE COMP STA	CANTON, Bradford, PA	Pass	State
2023-03-07	LEHIGH WHITE CEMENT CO LLC/YORK	YORK, York, PA	Pass	State
2023-03-07	REPSOL OIL& GAS USA LLC/REPINE COMP STA	LITTLE MEADOWS, Susquehanna, PA	Pass	State
2023-03-07	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-03-07	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-03-06	EXPAND OPERATING LLC/KATHRYN BRA PAD	WYALUSING, Bradford, PA	Pass	State
2023-03-06	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-03-06	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-03-05	NORTHAMPTON GEN CO/NORTHAMPTON	NORTHAMPTON, Northampton, PA	Pass	State
2023-03-03	APPALACHIA MIDSTREAM SVC LLC/RATTLESNAKE HILL COMP STA	AUBURN TOWNSHIP, Susquehanna, PA	Pass	State
2023-03-03	SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file	MONACA, Beaver, PA	Pass	State
2023-03-02	MAGNESITA REFRACTORIES/YORK — high-priority violation on file	YORK, York, PA	Pass	State
2023-03-02	REPSOL OIL & GAS USA LLC/THOMAS COMP STA	TROY, Bradford, PA	Pass	State
2023-03-02	APPALACHIA MIDSTREAM SVC LLC/STAGECOACH COMP STA	WYALUSING, Bradford, PA	Pass	State
2023-03-02	NFG MIDSTREAM COVINGTON LLC/LAWTON COMP STA	WELLSBORO, Tioga, PA	Pass	State
2023-03-01	NFG MIDSTREAM COVINGTON LLC/COVINGTON COMP STA	COVINGTON, Tioga, PA	Pass	State
2023-03-01	NFG MIDSTREAM COVINGTON LLC/STOCK 144 COMP STA	WELLSBORO, Tioga, PA	Pass	State
2023-03-01	APPALACHIA MIDSTREAM SVC LLC/AUBURN COMP STA	MESHOPPEN, Susquehanna, PA	Pass	State
2023-03-01	CHIEF OIL & GAS TAGUE WEST COMPRESSOR	TUNKHANNOCK, Wyoming, PA	Pass	State
2023-02-28	EASTERN GAS TRANSMISSION & STORAGE INC/NORTH SUMMIT	HOPWOOD, Fayette, PA	Pass	State
2023-02-28	MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-02-28	REPSOL OIL AND GAS USA/TRACT 587 SFL COMP STA	CANTON, Tioga, PA	Pass	State
2023-02-28	MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2023-02-28	NFG MIDSTREAM COVINGTON LLC/KINNAN 845 WELL PAD	MIDDLEBURY, Tioga, PA	Pass	State
2023-02-28	ENERGY CTR LANCASTER LLC/LANCASTER — high-priority violation on file	LANCASTER, Lancaster, PA	Pass	State
2023-02-28	VICINITY ENERGY/SCHUYLKILL STA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-28	VICINITY ENERGY/SCHUYLKILL STA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-27	SCRUBGRASS GENERATING PLT/VENANGO — high-priority violation on file	KENNERDELL, Venango, PA	Pass	State
2023-02-27	MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART	MOUNT PLEASANT, Washington, PA	Pass	State
2023-02-27	REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA	JERSEY SHORE, Lycoming, PA	Pass	State
2023-02-27	NFG MIDSTREAM COVINGTON LLC/TRACT 007 COMP STA	WELLSBORO, Tioga, PA	Pass	State
2023-02-23	DELAWARE CNTY REG WA/DELCORA WESTERN REG TRMT PLT	CHESTER, Delaware, PA	Pass	State
2023-02-23	AVERY DENNISON PERFORMANCE POLYMERS/MILL HALL PLT	MILL HALL, Clinton, PA	Pass	State
2023-02-23	LONGWOOD GARDENS/KENNETT SQUARE	KENNETT SQUARE, Chester, PA	Pass	State
2023-02-23	MARKWEST LIBERTY M&R/TUPTA DAY COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-02-23	FRESHPET INC/BETHLEHEM	BETHLEHEM, Northampton, PA	Pass	State
2023-02-23	US STEEL CORP/IRVIN PLT	WEST MIFFLIN, Allegheny, PA	Pass	Local
2023-02-23	US STEEL CORP/IRVIN PLT	WEST MIFFLIN, Allegheny, PA	Pass	Local
2023-02-23	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-23	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-23	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Fail	Local
2023-02-22	MAIN LINE HOSP INC/LANKENAU MED CTR	WYNNEWOOD, Montgomery, PA	Pass	State
2023-02-22	MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA	BURGETTSTOWN, Washington, PA	Pass	State
2023-02-22	US DEPT DEFENSE/TOBYHANNA ARMY DEPOT	TOBYHANNA, Monroe, PA	Pass	State
2023-02-21	AMRIZE CEMENT INC/WHITEHALL PLT — high-priority violation on file	WHITEHALL, Lehigh, PA	Pass	State
2023-02-21	CARLISLE CONST MATLS/HUNTER PANEL PLT — high-priority violation on file	SMITHFIELD, Fayette, PA	Pending	State
2023-02-21	EXCO APPALACHIA MIDSTREAM LLC/SAWMILL COMP STA	KITTANNING, Armstrong, PA	Pass	State
2023-02-21	MAINESBURG GS LP/WELLS COMP STA	COVINGTON, Tioga, PA	Pass	State
2023-02-21	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-21	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-17	PA DEPT OF CORR/LAUREL HIGHLANDS SCI	SOMERSET, Somerset, PA	Pass	State
2023-02-17	CLEMENS FOOD GROUP LLC/HATFIELD PLT — high-priority violation on file	HATFIELD, Montgomery, PA	Pass	State
2023-02-17	SUSQUEHANNA GATHERING/CDP 1 COMP STA	NEW MILFORD, Susquehanna, PA	Fail	State
2023-02-16	PA STATE UNIV/UNIV PARK CAMPUS	UNIVERSITY PARK, Centre, PA	Pass	State
2023-02-16	PA STATE UNIV/UNIV PARK CAMPUS	UNIVERSITY PARK, Centre, PA	Pass	State
2023-02-16	REGENCY MARCELLUS GAS GATHERING LLC/POORMAN COMP STA	LOCK HAVEN, Clinton, PA	Pass	State
2023-02-16	VICINITY ENERGY EDISON/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-16	VICINITY ENERGY EDISON/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-15	RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file	TREMONT, Schuylkill, PA	Pass	State
2023-02-15	WYCOMP LLC/FAIRVIEW TWP COMP STA — high-priority violation on file	FREDONIA, Mercer, PA	Pass	State
2023-02-15	ADUSA DIST LLC/YORK	YORK, York, PA	Pass	State
2023-02-15	NFG MIDSTREAM CLERMONT LLC/RICH VALLEY COMP STA	EMPORIUM, Cameron, PA	Pass	State
2023-02-15	EXPAND OPERATING LLC/KAUFMANN WELL PAD	NEW ALBANY, Bradford, PA	Pass	State
2023-02-14	REGENCY MARCELLUS GATHERING LLC/BRADFORD WEST COMP STA	GRANVILLE SUMMIT, Bradford, PA	Pass	State
2023-02-14	VICINITY ENERGY EDISON/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-13	NFG MIDSTREAM CLERMONT LLC/CLERMONT EAST COMP STA	WILCOX, McKean, PA	Pass	State
2023-02-13	APPALACHIA MIDSTREAM SVC LLC/RED FOX CDP	FOX, Sullivan, PA	Pass	State
2023-02-10	MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-02-09	BKV OPERATING LLC/BAKER WEST COMPRESSOR STATION	FORREST LAKE TWP, Susquehanna, PA	Pass	State
2023-02-09	SOUTHEASTERN PENNSYLVANIA TRANSPORTATION — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-09	SOUTHEASTERN PENNSYLVANIA TRANSPORTATION — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-02-08	SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file	MONACA, Beaver, PA	Fail	State
2023-02-07	LEWIS RUN GAS PLANT LLC/LEWIS RUN GAS PLANT	BRADFORD, McKean, PA	Pass	State
2023-02-07	EXPAND OPERATING LLC/STONE BRA PAD	WYALUSING, Bradford, PA	Pass	State
2023-02-07	USS CORP/EDGAR THOMSON WORKS — high-priority violation on file	BRADDOCK, Allegheny, PA	Pass	Local
2023-02-06	MONTOUR LLC/MONTOUR SES	WASHINGTONVILLE, Montour, PA	Pass	State
2023-02-06	STARPRINT PUBLICATIONS INC/PORTAGE — high-priority violation on file	PORTAGE, Cambria, PA	Pass	State
2023-02-06	RANGE RESOURCES APPALACHIA LLC/LAUREL HILL WELL PAD B	TROUT RUN, Lycoming, PA	Pass	State
2023-02-06	RANGE RESOURCES APPALACHIA LLC/LAUREL HILL G	TROUT RUN, Lycoming, PA	Pass	State
2023-02-06	USS CORP/EDGAR THOMSON WORKS — high-priority violation on file	BRADDOCK, Allegheny, PA	Pass	Local
2023-02-03	KEYSTONE PORTLAND CEMENT/EAST ALLEN — high-priority violation on file	BATH, Northampton, PA	Pass	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.