EPA Air · stack tests by state and year

Air-emissions stack tests in Pennsylvania, 2021

788Stack 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 2021; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Pennsylvania, 2021

Pennsylvania, other years

Air-emissions stack tests recorded in Pennsylvania, 2021

Date	Facility	Where	Kind	Agency
2021-02-12	REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA	CANTON, Bradford, PA	Pass	State
2021-02-11	KENVUE BRANDS LLC/WHITEMARSH TWP — high-priority violation on file	FORT WASHINGTON, Montgomery, PA	Pass	State
2021-02-11	DELAWARE CNTY REG WA/DELCORA WESTERN REG TRMT PLT	CHESTER, Delaware, PA	Pass	State
2021-02-11	PIN OAK MIDSTREAM LLC/HURTT COMP STA	NEW WILMINGTON, Mercer, PA	Pass	State
2021-02-11	REGENCY MARCELLUS GAS GATHERING LLC/MEHOOPANY STA	TUNKHANNOCK, Wyoming, PA	Pass	State
2021-02-10	EASTERN GAS TRANS & STORAGE INC/FINNEFROCK STA	RENOVO, Clinton, PA	Pass	State
2021-02-10	REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA	MONTOURSVILLE, Lycoming, PA	Pass	State
2021-02-10	EXPAND OPERATING LLC/NICKOLYN WELL PAD	AUBURN, Susquehanna, PA	Pass	State
2021-02-10	USS CORP/EDGAR THOMSON WORKS — high-priority violation on file	BRADDOCK, Allegheny, PA	Pass	Local
2021-02-09	LAUREL MTN MIDSTREAM OPR LLC/HERMINIE COMP STA	WEST NEWTON, Westmoreland, PA	Pass	State
2021-02-09	USS CORP/EDGAR THOMSON WORKS — high-priority violation on file	BRADDOCK, Allegheny, PA	Pass	Local
2021-02-08	NATL FUEL GAS SUPPLY CORP/ROYSTONE COMP STA	SHEFFIELD, Warren, PA	Pass	State
2021-02-08	TEXAS EASTERN TRANS LP/PERULACK STA	EAST WATERFORD, Juniata, PA	Pass	State
2021-02-08	EXPAND OPERATING LLC/BERNARD MCCULLEY WELLPAD	WEST ALEXANDER, Washington, PA	Pass	State
2021-02-05	DART CONTAINER CORP/LEOLA	LEOLA, Lancaster, PA	Pass	State
2021-02-05	NATL FUEL GAS SUPPLY CORP/MERCER COMP STA	MERCER, Mercer, PA	Pass	State
2021-02-04	NATL FUEL SUPPLY CORP/BUFFALO COMP STA	WASHINGTON, Washington, PA	Pass	State
2021-02-04	WILLIAMS FIELD SVC CO LLC/SNAKE CREEK COMP STA	CLARKS SUMMIT, Susquehanna, PA	Pass	State
2021-02-04	EXPAND OPERATING LLC/CAPPUCCI WELL PAD	MEHOOPANY, Wyoming, PA	Pass	State
2021-02-04	EQT PROD CO/KUHN WELLPAD	EAST FINLEY, Washington, PA	Pass	State
2021-02-03	LAUREL MTN MIDSTREAM OPR LLC/CANTARAL COMP STA	WAYNESBURG, Greene, PA	Pass	State
2021-02-03	WILLIAMS FIELD SVC CO LLC/CHURCH COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-02-03	MIFFLINBURG AREA SCH DIST/MIFFLINBURG CAMPUS	MIFFLINBURG, Union, PA	Pass	State
2021-02-02	EQM GATHERING OPCO LLC/SNAPPING TURTLE COMP STA	WIND RIDGE, Greene, PA	Pass	State
2021-01-28	GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file	WEST HAZLETON, Luzerne, PA	Fail	State
2021-01-28	WILLIAMS FIELD SVC CO LLC/CENTRAL COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2021-01-28	VICINITY ENERGY EDISON/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-28	VICINITY ENERGY EDISON/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-27	BIMBO BAKERIES USA INC/WILLIAMSPORT PLT	WILLIAMSPORT, Lycoming, PA	Pass	State
2021-01-27	EQM GATHERING OPCO LLC/JUPITER COMP STA	WAYNESBURG, Greene, PA	Pass	State
2021-01-27	EQM GATHERING OPCO LLC/PIPERS RIDGE INTERCONNECT	WAYNESBURG, Greene, PA	Pass	State
2021-01-27	VICINITY ENERGY EDISON/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-26	EASTERN GAS TRANS & STORAGE INC/CHERRY TREE COMP STA	CHERRY TREE, Indiana, PA	Pass	State
2021-01-26	MONTOUR LLC/MONTOUR SES	WASHINGTONVILLE, Montour, PA	Pass	State
2021-01-26	BLUESTONE PIPELINE CO/COMFORT LAKE COMP STA	HARMONY TWP, Susquehanna, PA	Pass	State
2021-01-26	VICINITY ENERGY EDISON/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-22	EASTERN SHORE NATURAL GAS CO/DALEVILLE	COCHRANVILLE, Chester, PA	Pass	State
2021-01-22	ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-21	ARDEN LDFL/CHARTIERS TWP	WASHINGTON, Washington, PA	Pass	State
2021-01-21	REGENCY MARCELLUS GAS GATHERING LLC/POORMAN COMP STA	LOCK HAVEN, Clinton, PA	Pass	State
2021-01-20	TRANSCONTINENTAL GAS/FRAZER STA 200	MALVERN, Chester, PA	Pass	State
2021-01-20	KAWNEER CO/BLOOMSBURG PLT	BLOOMSBURG, Columbia, PA	Pass	State
2021-01-20	NFG MIDSTREAM COVINGTON LLC/KRAUSE COMP STA	MAINESBURG, Tioga, PA	Pass	State
2021-01-20	EQM GATHERING OPCO LLC/IO COMP STA	WAYNESBURG, Greene, PA	Pass	State
2021-01-20	REV LNG SSL BC LLC/NICHE LNG LLC - TOWANDA FAC	WYALUSING, Bradford, PA	Pass	State
2021-01-20	NFG MIDSTREAM COVINGTON LLC/CLARK COMP STA	MAINESBURG, Tioga, PA	Pass	State
2021-01-19	BINGAMAN & SON LUMBER/KREAMER LUMBER MILL	KREAMER, Snyder, PA	Pass	State
2021-01-19	REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA	COGAN STA, Lycoming, PA	Pass	State
2021-01-19	CNX MIDSTREAM OPR CO LLC/HOPEWELL STATION	SYCAMORE, Greene, PA	Pass	State
2021-01-19	HEP PENNSYLVANIA GATHERING LLC/TIOGA CPF#2 COMP STA	LIBERTY, Tioga, PA	Pass	State
2021-01-19	EXPAND OPERATING LLC/FOLTA BRA PAD	LACEYVILLE, Bradford, PA	Pass	State
2021-01-15	US GYPSUM CO/WASHINGTONVILLE PLT — high-priority violation on file	DANVILLE, Montour, PA	Fail	State
2021-01-15	BKV OPERATING LLC/BAKER WEST COMPRESSOR STATION	FORREST LAKE TWP, Susquehanna, PA	Pass	State
2021-01-14	UGI AUBURN GATHERING LLC/ANDERSON COMP STA	NEW RINGGOLD, Susquehanna, PA	Pass	State
2021-01-14	BELLEFIELD BOILER PLT/PGH	PITTSBURGH, Allegheny, PA	Pass	State
2021-01-14	BELLEFIELD BOILER PLT/PGH	PITTSBURGH, Allegheny, PA	Pass	State
2021-01-14	BELLEFIELD BOILER PLT/PGH	PITTSBURGH, Allegheny, PA	Pass	State
2021-01-14	BELLEFIELD BOILER PLT/PGH	PITTSBURGH, Allegheny, PA	Pass	State
2021-01-14	NORTHEAST WPCP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-14	NORTHEAST WPCP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-13	MAGNESITA REFRACTORIES/YORK — high-priority violation on file	YORK, York, PA	Pass	State
2021-01-13	EQM GATHERING OPCO LLC/BLUE MOON COMP STA	DAISYTOWN, Washington, PA	Pass	State
2021-01-13	NORTHEAST WPCP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-12	COLUMBIA GAS TRANS CORP/HELLERTOWN CT	HELLERTOWN, Northampton, PA	Pass	State
2021-01-12	EXCO APPALACHIA MIDSTREAM LLC/POVERTY HILL COMP STA	KITTANNING, Armstrong, PA	Pass	State
2021-01-12	BLUESTONE PIPELINE CO OF PA CDP#5/HARFORD TWP	NEW MILFORD, Susquehanna, PA	Pass	State
2021-01-11	EQUITRANS LP/GINGER HILL SITE	FINLEYVILLE, Washington, PA	Fail	State
2021-01-08	NEWMAN & CO/PAPER RECYCLER — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-07	SCHUYLKILL ENERGY RES/ST NICHOLAS COGEN — high-priority violation on file	SHENANDOAH, Schuylkill, PA	Pass	State
2021-01-07	BRUNNER ISLAND LLC/BRUNNER ISLAND	YORK HAVEN, York, PA	Pass	State
2021-01-07	ROUNDTOP ENERGY/AUBURN	YARDLEY, Susquehanna, PA	Fail	State
2021-01-07	EQM GATHERING OPCO LLC/HALO COMP STA	SYCAMORE, Greene, PA	Pass	State
2021-01-07	WILLIAMS FIELD SVC CO LLC/GIBSON COMP STA	SOUTH GIBSON, Susquehanna, PA	Pass	State
2021-01-06	WABTEC US RAIL GROVE CITY ENGINE/MERCER	GROVE CITY, Mercer, PA	Pass	State
2021-01-06	WIREROPE WORKS/WMSPT PLT	WILLIAMSPORT, Lycoming, PA	Pass	State
2021-01-06	HATFIELD TWP MUNI AUTH/COLMAR	COLMAR, Montgomery, PA	Pass	State
2021-01-06	WILLIAMS FIELD SVC CO LLC/MILLER COMP STA	NEW MILFORD, Susquehanna, PA	Pass	State
2021-01-06	EXPAND OPERATING LLC/JES BRA WELL PAD	WILMONT, Bradford, PA	Pass	State
2021-01-06	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-06	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-06	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-05	ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file	CABOT, Butler, PA	Pass	State
2021-01-05	EQM GATHERING OPCO LLC/CYGRYMUS COMP STA	NEW FREEPORT, Greene, PA	Pass	State
2021-01-05	WILLIAMS FIELD SVC CO LLC/WHITE COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-01-05	SUSQUEHANNA GATHERING/NORTH RANGE CPF 1 COMP STA	SUSQUEHANNA, Susquehanna, PA	Pass	State
2021-01-05	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-05	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-01-05	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local

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