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
2023-11-13	LONGWOOD GARDENS/KENNETT SQUARE	KENNETT SQUARE, Chester, PA	Pass	State
2023-11-13	NFG MIDSTREAM COVINGTON LLC/TRACT 007 COMP STA	WELLSBORO, Tioga, PA	Pass	State
2023-11-13	LAUREL HILL PAD A 12635	LIBERTY, Lycoming, PA	Pass	State
2023-11-11	REWORLD PLYMOUTH/ PLYMOUTH — high-priority violation on file	CONSHOHOCKEN, Montgomery, PA	Pass	State
2023-11-10	WARD MFG LLC/BLOSSBURG PLTS 1-3	BLOSSBURG, Tioga, PA	Pass	State
2023-11-10	WOODGRAIN INC/FIBER DIV PA	TOWANDA, Bradford, PA	Pass	State
2023-11-10	COLUMBIA GAS TRANS LLC/REDD FARM COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-11-09	ELECTRALLOY GO CARLSON/OIL CITY	OIL CITY, Venango, PA	Pass	State
2023-11-09	WOODGRAIN INC/FIBER DIV PA	TOWANDA, Bradford, PA	Pass	State
2023-11-09	GEORGIA PACIFIC PANEL PRODUCTS LLC/MOUNT JEWETT MDF	KANE, McKean, PA	Pass	State
2023-11-09	US GYPSUM CO/WASHINGTONVILLE PLT — high-priority violation on file	DANVILLE, Montour, PA	Pass	State
2023-11-09	CNX MIDSTREAM OPR CO LLC/MOR-44 COMP STA	WEST FINLEY, Washington, PA	Pass	State
2023-11-08	EXPAND OPERATING LLC/RU-71 BLUE BECK WELLPAD	MILFORD, Susquehanna, PA	Pass	State
2023-11-07	LOPAREX/MALVERN	MALVERN, Chester, PA	Pass	State
2023-11-07	COMM REFUSE SVC INC/CUMBERLAND CNTY LDFL	SHIPPENSBURG, Cumberland, PA	Pass	State
2023-11-07	EQM GATHERING OPCO LLC/TERRA COMP STA	PLUM CREEK, Armstrong, PA	Pass	State
2023-11-07	WILLIAMS FIELD SVC CO LLC/JONES COMP STA	FRIENDSVILLE, Susquehanna, PA	Pass	State
2023-11-07	WILLIAMS FIELD SVC CO LLC/JONES COMP STA	FRIENDSVILLE, Susquehanna, PA	Pass	State
2023-11-07	SWN PROD CO LLC/GAYLORD 3H	SUSQUEHANNA, Susquehanna, PA	Pass	State
2023-11-06	RENEWAL PROCESSING INC/WATSONTOWN PLT — high-priority violation on file	WATSONTOWN, Northumberland, PA	Pending	State
2023-11-02	ETC NORTHEAST PIPELINE LLC/BARTO COMP STA	HUGHESVILLE, Lycoming, PA	Pass	State
2023-11-01	INTER POWER AHLCON LP/COLVER POWER PROJ — high-priority violation on file	COLVER, Cambria, PA	Pass	State
2023-11-01	WOOD MODE LLC/KREAMER PLT	KREAMER, Snyder, PA	Fail	State
2023-11-01	WILLIAMS FIELD SVC CO LLC/WILCOX COMP STA	TUNKHANNOCK, Wyoming, PA	Pass	State
2023-10-31	HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file	FLEETWOOD, Berks, PA	Pass	State
2023-10-31	NEXTERA RENEWABLE FUELS LLC/FREY FARM CRESWELL LDFL	CONESTOGA, Lancaster, PA	Pass	State
2023-10-31	WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2023-10-31	EQM GATHERING OPCO LLC/MCINTOSH COMP STA	FINLEYVILLE, Washington, PA	Pass	State
2023-10-31	COTERRA ENERGY INC/ADAMS J PAD 1	KINGSLEY, Susquehanna, PA	Pass	State
2023-10-30	EQM GATHERING OPCO LLC/SGL 179 DEHY	NEW FREEOIRT, Greene, PA	Pass	State
2023-10-27	ENERGY TRANSF MKT & TERM LP/MARCUS HOOK TERM — high-priority violation on file	MARCUS HOOK, Delaware, PA	Pass	State
2023-10-27	WILLIAMS FIELD SVC CO LLC/JONES COMP STA	FRIENDSVILLE, Susquehanna, PA	Pending	State
2023-10-27	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-27	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-27	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-27	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-27	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-27	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-26	OWENS BROCKWAY GLASS CONTAINER PLT 18 — high-priority violation on file	BROCKWAY, Jefferson, PA	Pass	State
2023-10-26	KNOUSE FOODS COOP INC/PEACH GLEN TYRONE TWP	PEACH GLEN, Adams, PA	Pass	State
2023-10-26	BANK OF AMERICA NATL ASSN/LEVITTOWN — high-priority violation on file	LEVITTOWN, Bucks, PA	Pass	State
2023-10-26	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-26	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-26	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-25	PA GRAIN PROCESSING LLC/CLEARFIELD BORO ETHANOL PROD PLT — high-priority violation on file	CLEARFIELD, Clearfield, PA	Pass	State
2023-10-25	NFG MIDSTREAM CLERMONT LLC/CLERMONT EAST COMP STA	WILCOX, McKean, PA	Pass	State
2023-10-25	CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA	WIND RIDGE, Greene, PA	Pass	State
2023-10-25	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-24	TEXAS EASTERN TRANS LP/BERNVILLE STA	BERNVILLE, Berks, PA	Pass	State
2023-10-24	NEXTERA RENEWABLE FUELS LLC/CUMBERLAND CNTY LDFL	SHIPPENSBURG, Cumberland, PA	Pass	State
2023-10-24	EQM GATHERING OPCO LLC/CYGRYMUS COMP STA	NEW FREEPORT, Greene, PA	Pass	State
2023-10-24	WILLIAMS FIELD SVC CO LLC/JONES COMP STA	FRIENDSVILLE, Susquehanna, PA	Pass	State
2023-10-24	PRATT CARLISLE CORRUGATING LLC/CARLISLE	CARLISLE, Cumberland, PA	Pass	State
2023-10-24	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-23	PA GRAIN PROCESSING LLC/CLEARFIELD BORO ETHANOL PROD PLT — high-priority violation on file	CLEARFIELD, Clearfield, PA	Pass	State
2023-10-19	SNYDER BROS INC/COTTAGE HILL COMP STA	NEW BETHELHEM, Clarion, PA	Pass	State
2023-10-19	MARKWEST LIBERTY BLUESTONE LLC/SARSEN GAS PROC PLT	EVANS CITY, Butler, PA	Pass	State
2023-10-19	EXPAND OPERATING LLC/ROSIEMAR SUS PAD	MESHOPPEN, Susquehanna, PA	Pass	State
2023-10-19	EXPAND OPER LLC/TI-46-BLISS WELL PAD	LIBERTY, Tioga, PA	Pass	State
2023-10-19	ALLEGHENY CNTY SANI AUTH/ALLEGHENY CNTY	PITTSBURGH, Allegheny, PA	Fail	Local
2023-10-18	TRANSCONTINENTAL GAS/WHARTON STATION 535	AUSTIN, Potter, PA	Pass	State
2023-10-18	TEXAS EASTERN TRANS LP/LILLY STA	LILLY, Cambria, PA	Pass	State
2023-10-18	MECHANICSBURG TERM DE LLC/MECHANICSBURG NORTH TERMINAL	MECHANICSBURG, Cumberland, PA	Pass	State
2023-10-18	ADHESIVES RESEARCH INC/GLEN ROCK — high-priority violation on file	GLEN ROCK, York, PA	Pass	State
2023-10-18	ROUNDTOP ENERGY/AUBURN	YARDLEY, Susquehanna, PA	Pass	State
2023-10-18	SOUTHWESTERN ENERGY CO/SCARLET OAK 1H	NEW MILFORD, Susquehanna, PA	Pass	State
2023-10-18	UGI GIBRALTAR GATHERING LLC/GIBRALTAR COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2023-10-18	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2023-10-17	QNITY ELECTRONICS INC/TOWANDA PLT	TOWANDA, Bradford, PA	Pass	State
2023-10-17	THE SHERWIN WILLIAMS CO/ROCHESTER PLT — high-priority violation on file	ROCHESTER, Beaver, PA	Fail	State
2023-10-17	GREENTREE BOOSTER COMPRESSOR/ BROCKWAY	BROCKWAY, Elk, PA	Pass	State
2023-10-17	MARKWEST LIBERTY MIDSTREAM RES/DOWN HOME COMPRESSOR STATION	ROBINSON TWP, Washington, PA	Pass	State
2023-10-17	WCAA MIDSTREAM LLC/WEITZ SOUTH 20 COMP STA	ADAMSBURG, Westmoreland, PA	Pass	State
2023-10-16	NATL FUEL GAS SUPPLY/ELLISBURG STA	ELLISBURG, Potter, PA	Pass	State
2023-10-16	PINE RUN MIDSTREAM LLC/BICKER COMP STA	CABOT, Butler, PA	Pass	State
2023-10-16	GRAYS FERRY COGEN PARTNERSHIP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-12	REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA	CUMMINS TWP, Lycoming, PA	Pass	State
2023-10-12	ROCKWOOD MFG CO INC/NORTH SOMERSET	SOMERSET, Somerset, PA	Pass	State
2023-10-12	PPG IND INC/SPRINGDALE	SPRINGDALE, Allegheny, PA	Pass	Local
2023-10-12	PPG IND INC/SPRINGDALE	SPRINGDALE, Allegheny, PA	Pass	Local
2023-10-11	TEXAS EASTERN TRANS LP/TE DELMONT COMP STA	GREENSBURG, Westmoreland, PA	Pass	State
2023-10-11	HUNLOCK CREEK GENERATING LLC/HUNLOCK CREEK ENERGY CENTER — high-priority violation on file	HUNLOCK CREEK, Luzerne, PA	Pass	State
2023-10-11	TEXAS EASTERN TRANS LP/GRANTVILLE	GRANTVILLE, Dauphin, PA	Pass	State
2023-10-11	COLUMBIA GAS TRANS CORP/ELLWOOD CITY STA	ELLWOOD CITY, Beaver, PA	Pass	State
2023-10-11	MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA	BURGETTSTOWN, Washington, PA	Pass	State
2023-10-11	PA GEN ENERGY CO LLC/COP TRACT 293 COMP STA	WATERVILLE, Lycoming, PA	Pass	State
2023-10-11	RIVERSIDE MATERIALS INC/ASPHALT PLT	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-10-10	MONTOUR LLC/MONTOUR SES	WASHINGTONVILLE, Montour, PA	Pass	State
2023-10-10	COLUMBIA GAS TRANS CORP/CGT DELMONT COMP STA	DELMONT, Westmoreland, PA	Pass	State
2023-10-10	HOLY REDEEMER HOSP & MED CTR/ABINGTON	JENKINTOWN, Montgomery, PA	Pass	State
2023-10-10	NEXTERA RENEWABLE FUELS LLC/GREATER LEBANON LDFL	LEBANON, Lebanon, PA	Fail	State
2023-10-10	SWN PROD CO LLC/DEPUE COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2023-10-10	UGI AUBURN GATHERING LLC/ MANNING COMPRESSOR LNG STA	MESHOPPEN, Wyoming, PA	Pass	State
2023-10-09	EMPIRE PIPELINE INC/JACKSON COMP STA	LAWRENCEVILLE, Tioga, PA	Pass	State
2023-10-06	MARKWEST LIBERTY MID & RES / HOSKINS BOOSTER COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2023-10-05	COLUMBIA GAS TRANS CORP/FORKS TWP FAC EASTON CTA	EASTON, Northampton, PA	Pass	State
2023-10-05	TENNESSEE GAS PIPELINE CO/317 TROY STA	TROY, Bradford, PA	Pass	State
2023-10-05	UNITED REFINING CO/WARREN PLT	WARREN, Warren, PA	Pass	State
2023-10-05	VICTAULIC CO/LAWRENCEVILLE PLT	TIOGA, Tioga, PA	Pass	State
2023-10-05	TENASKA PA PARTNERS/WESTMORELAND GEN FAC — high-priority violation on file	SMITHTON, Westmoreland, PA	Pass	State

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