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
2021-03-31	TEMPLE UNIV HEALTH SCIENCES CAMPUS/STEAM — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-03-30	WILLIAMS FIELD SVC CO LLC/TEEL COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-03-30	APPALACHIA MIDSTREAM SVC LLC/RATTLESNAKE HILL COMP STA	AUBURN TOWNSHIP, Susquehanna, PA	Pass	State
2021-03-30	EQT PROD CO/MOJO COMPRESSOR UNIT	WASHINGTON, Washington, PA	Pass	State
2021-03-30	CABOT OIL & GAS CORP/MAKOSKY T PAD 1	KINGSLEY, Susquehanna, PA	Pass	State
2021-03-29	TRANSCONTINENTAL GAS/BEAR CREEK STA 515	BEAR CREEK, Luzerne, PA	Pass	State
2021-03-26	APPALACHIA MIDSTREAM SVC LLC/AUBURN COMP STA	MESHOPPEN, Susquehanna, PA	Pass	State
2021-03-24	CP CONVERTERS INC/MANCHESTER	YORK, York, PA	Pass	State
2021-03-24	TENNESSEE GAS PIPELINE CO LLC/COMP STA 321	CLIFFORD, Susquehanna, PA	Pass	State
2021-03-24	SUSQUEHANNA GATHERING/CDP 1 COMP STA	NEW MILFORD, Susquehanna, PA	Pass	State
2021-03-24	REPSOL OIL & GAS USA LLC/DCNR 010 COMP STA	MORRIS RUN, Tioga, PA	Pass	State
2021-03-24	ALPEK POLYESTER USA LLC/READING	READING, Berks, PA	Pass	State
2021-03-23	TRANSCONTINENTAL GAS/SALLADASBURG STATION 520	JERSEY SHORE, Lycoming, PA	Pass	State
2021-03-23	YUASA BATTERY INC/LAURELDALE	LAURELDALE, Berks, PA	Pass	State
2021-03-23	NEXTERA RENEWABLE FUELS LLC/FREY FARM CRESWELL LDFL	CONESTOGA, Lancaster, PA	Pass	State
2021-03-23	TENNESSEE GAS PIPELINE CO LLC/STA 310	CLERMONT, McKean, PA	Pass	State
2021-03-23	REPSOL OIL & GAS USA LLC/PUTNAM COMP STA	TROY, Bradford, PA	Pass	State
2021-03-23	UPPER MORELAND HATBORO JT SEW AUTH/WILLOW GROVE	WILLOW GROVE, Montgomery, PA	Pass	State
2021-03-19	SVC MFG INC/MOUNTAIN TOP	MOUNTAIN TOP, Luzerne, PA	Pass	State
2021-03-19	GREENRIDGE RECLAMATION LLC/E HUNTINGDON — high-priority violation on file	SCOTTDALE, Westmoreland, PA	Pass	State
2021-03-19	MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT	EVANS CITY, Butler, PA	Pass	State
2021-03-18	REPSOL OIL & GAS LLC/COLE COMP STA	TROY, Bradford, PA	Pass	State
2021-03-18	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-03-17	ARCONIC US LLC/LANCASTER — high-priority violation on file	LANCASTER, Lancaster, PA	Pass	State
2021-03-17	NATL FUEL GAS SUPPLY/ELLISBURG STA	ELLISBURG, Potter, PA	Pass	State
2021-03-17	REPSOL OIL & GAS USA LLC/WATKINS HILL RD	COLUMBIA CROSS ROADS, Bradford, PA	Pass	State
2021-03-17	EQUITRANS LP/JEFFERSON COMP STA	LIPPINCOTT, Greene, PA	Pass	State
2021-03-17	WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-03-17	WILLIAMS FIELD SVC CO LLC/SHIELDS COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-03-17	NAVAL SURFACE WARFARE CENTER - PHILADELPHIA DIVISION	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-03-16	SWN PROD CO LLC/DEPUE COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2021-03-16	SWN PROD CO LLC/HAYES WELL PAD	HALLSTEAD, Susquehanna, PA	Pass	State
2021-03-16	NATL FUEL GAS SUPPLY CORP/KEELOR COMP STA	KANE, McKean, PA	Pass	State
2021-03-16	DOWNS RACING LP — high-priority violation on file	WILKES BARRE, Luzerne, PA	Pass	State
2021-03-16	UGI TEXAS CREEK LLC/CASTLE COMP STA	CANTON, Bradford, PA	Pass	State
2021-03-11	REPSOL OIL & GAS USA LLC/EDSELL COMP STA	LE RAYSVILLE, Bradford, PA	Pass	State
2021-03-11	ROUNDTOP ENERGY/AUBURN	YARDLEY, Susquehanna, PA	Pass	State
2021-03-11	US STEEL CORP/IRVIN PLT	WEST MIFFLIN, Allegheny, PA	Pass	Local
2021-03-10	COLUMBIA GAS TRANS LLC/EAGLE	CHESTER SPRINGS, Chester, PA	Pass	State
2021-03-10	RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file	TREMONT, Schuylkill, PA	Fail	State
2021-03-10	GILBERTON POWER CO/JOHN B RICH MEM POWER STA	FRACKVILLE, Schuylkill, PA	Pass	State
2021-03-10	MARKWEST LIBERTY BLUESTONE LLC/VOLL COMP STA	EVANS CITY, Butler, PA	Pass	State
2021-03-10	NFG MIDSTREAM COVINGTON LLC/STOCK 144 COMP STA	WELLSBORO, Tioga, PA	Pass	State
2021-03-10	NEXTERA RENEWABLE FUELS LLC/BLUE RIDGE LDFL	SCOTLAND, Franklin, PA	Pass	State
2021-03-09	EASTERN GAS TRANS & STORAGE INC/BOOM STA	LAWRENCEVILLE, Tioga, PA	Pass	State
2021-03-09	NFG MIDSTREAM COVINGTON LLC/LAWTON COMP STA	WELLSBORO, Tioga, PA	Pass	State
2021-03-09	REPSOL OIL& GAS USA LLC/REPINE COMP STA	LITTLE MEADOWS, Susquehanna, PA	Pass	State
2021-03-08	COLUMBIA GAS TRANS LLC/REDD FARM COMP STA	WASHINGTON, Washington, PA	Pass	State
2021-03-08	NFG MIDSTREAM COVINGTON LLC/TRACT 007 COMP STA	WELLSBORO, Tioga, PA	Pass	State
2021-03-05	REGENCY MARCELLUS GAS GATHERING LLC/ HIRKEY COMP STA	TUNKHANNOCK, Wyoming, PA	Pass	State
2021-03-05	RIVERSIDE MATERIALS INC/ASPHALT PLT	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-03-04	REPSOL OIL & GAS USA LLC/THOMAS COMP STA	TROY, Bradford, PA	Pass	State
2021-03-03	US SILICA/MAPLETON DEPOT PLT	MAPLETON DEPOT, Huntingdon, PA	Pass	State
2021-03-03	ERIE SEWER AUTHORITY/ERIE WWTP — high-priority violation on file	ERIE, Erie, PA	Pass	State
2021-03-03	MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART	MOUNT PLEASANT, Washington, PA	Pass	State
2021-03-03	REGENCY MARCELLUS GATHERING LLC/BRADFORD WEST COMP STA	GRANVILLE SUMMIT, Bradford, PA	Pass	State
2021-03-03	WILLIAMS FIELD SVC CO/MACNEW COMP STA	HOP BOTTOM, Susquehanna, PA	Pass	State
2021-03-03	TEMPLE UNIV/ MAIN CAMPUS — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-03-02	REPSOL OIL AND GAS USA/TRACT 587 SFL COMP STA	CANTON, Tioga, PA	Pass	State
2021-03-02	MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2021-03-02	REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA	CANTON, Bradford, PA	Pass	State
2021-03-02	TEMPLE UNIV/ MAIN CAMPUS — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-03-02	TEMPLE UNIV/ MAIN CAMPUS — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-03-01	MARKWEST LIBERTY M&R/TUPTA DAY COMP STA	WASHINGTON, Washington, PA	Pass	State
2021-03-01	NFG MIDSTREAM CLERMONT LLC/CLERMONT WEST COMP STA	EMPORIUM, Elk, PA	Pass	State
2021-03-01	CABOT OIL & GAS CORP/KROPA, T. PAD 1	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-02-27	MARKWEST LIBERTY MIDSTREAM & RESOURCES/MCMICHAEL COMP STA	CLINTON, Beaver, PA	Pass	State
2021-02-26	UNITED REFINING CO/WARREN PLT	WARREN, Warren, PA	Pass	State
2021-02-26	MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA	WASHINGTON, Washington, PA	Pass	State
2021-02-26	MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA	AVELLA, Washington, PA	Pass	State
2021-02-25	UNITED REFINING CO/WARREN PLT	WARREN, Warren, PA	Pass	State
2021-02-25	MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA	BURGETTSTOWN, Washington, PA	Pass	State
2021-02-25	LOAN ASSET ISSUER LLC/WEST FINLEY 6 WELL PAD	WEST FINLEY, Washington, PA	Pass	State
2021-02-25	LOAN ASSET ISSUER LLC/WEST FINLEY 5 WELL PAD	WEST FINLEY, Washington, PA	Pass	State
2021-02-24	NATL FUEL GAS SUPPLY/ELLISBURG STA	ELLISBURG, Potter, PA	Pass	State
2021-02-24	NATL FUEL GAS SUPPLY/ELLISBURG STA	ELLISBURG, Potter, PA	Pass	State
2021-02-24	ERIE SEWER AUTHORITY/ERIE WWTP — high-priority violation on file	ERIE, Erie, PA	Fail	State
2021-02-24	CABINETWORKS GROUP MICH LLC/ATHENS TWP PLT	SAYRE, Bradford, PA	Pass	State
2021-02-23	NORTHAMPTON GEN CO/NORTHAMPTON	NORTHAMPTON, Northampton, PA	Pass	State
2021-02-23	PA STATE SYS OF HIGHER ED/SLIPPERY ROCK UNIV PA	SLIPPERY ROCK, Butler, PA	Pass	State
2021-02-22	EXCO APPALACHIA MIDSTREAM LLC/SAWMILL COMP STA	KITTANNING, Armstrong, PA	Pass	State
2021-02-19	TEXAS EASTERN TRANS LP/ENTRIKEN STA	ENTRIKEN, Huntingdon, PA	Pass	State
2021-02-19	ENERGY CTR HBG LLC/ENERGY CTR PAXTON LLC	HARRISBURG, Dauphin, PA	Pass	State
2021-02-19	US DOJ/US PENITENTIARY CANAAN	WAYMART, Wayne, PA	Pass	State
2021-02-19	SNYDER BROS INC/AMBROSE COMP STA	ADRIAN, Armstrong, PA	Pass	State
2021-02-18	DELAWARE CNTY REG WA/DELCORA WESTERN REG TRMT PLT	CHESTER, Delaware, PA	Fail	State
2021-02-17	CLINTON CNTY SOLID W/WAYNE TWP LDFL	MC ELHATTAN, Clinton, PA	Pass	State
2021-02-17	EPP RENEWABLE ENERGY/NORTHERN TIER LFGTE PLT	WEST BURLINGTON, Bradford, PA	Pass	State
2021-02-17	GEOPETRO LLC/PATTERSON COMP STA	NEW BEAVER, Lawrence, PA	Pass	State
2021-02-17	NFG MIDSTREAM CLERMONT LLC/RICH VALLEY COMP STA	EMPORIUM, Cameron, PA	Pass	State
2021-02-17	SWN PRODUCTION CO LLC/KING NORTH 3H	NEW MILFORD, Susquehanna, PA	Pass	State
2021-02-17	EXPAND OPERATING LLC/RU-46 DROPP WELLPAD	SUSQUEHANNA, Susquehanna, PA	Pass	State
2021-02-17	EXPAND OPERATING LLC/RU-71 BLUE BECK WELLPAD	MILFORD, Susquehanna, PA	Pass	State
2021-02-16	PANTHER CREEK POWER OPR LLC/NESQUEHONING	NESQUEHONING, Carbon, PA	Pass	State
2021-02-16	KLINES SVC LLC/SALUNGA	SALUNGA, Lancaster, PA	Pass	State
2021-02-16	ETC NORTHEAST FLD SVC LLC/PIKE COMP STA	ROCHESTER, Beaver, PA	Pass	State
2021-02-16	EXPAND OPERATING LLC/GU-VW MCMAHON WELL PAD	STEVENSVILLE, Bradford, PA	Pass	State
2021-02-16	EXPAND OPERATING LLC/GU-VW MCMAHON WELL PAD	STEVENSVILLE, Bradford, PA	Pass	State
2021-02-16	EXPAND OPERATING LLC/MCGAVIN WELL PAD	MESHOPPEN, Susquehanna, PA	Pass	State
2021-02-16	SWN ENERGY PROD CO/SEYMOUR PAD	LAWTON, Bradford, PA	Pass	State

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