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
2021-09-21	COLUMBIA GAS TRANS CORP/MILFORD COMP STA	MILFORD, Pike, PA	Pass	State
2021-09-21	BRIAN ARTHUR STRAUCH FUNERAL & CREMATION SVC	SPRING BROOK TOWNSHIP, Wayne, PA	Pass	State
2021-09-21	EXPAND OPERATING LLC/INNES PAD	NEW MILFORD, Susquehanna, PA	Pass	State
2021-09-21	ALLEGHENY ENERGY SUPPLY/SPRINGDALE	PITTSBURGH, Allegheny, PA	Pass	Local
2021-09-21	ALLEGHENY ENERGY SUPPLY/SPRINGDALE	PITTSBURGH, Allegheny, PA	Pass	Local
2021-09-20	HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file	FLEETWOOD, Berks, PA	Pass	State
2021-09-20	SOUTHWESTERN ENERGY CO/KOZIOL 5H-6H	NEW MILFORD, Susquehanna, PA	Pass	State
2021-09-20	EXPAND OPERATING LLC/RU-06 FLOHS PAD	NEW MILFORD, Susquehanna, PA	Pass	State
2021-09-17	MERCK SHARP & DOHME LLC/WEST PT	WEST POINT, Montgomery, PA	Pass	State
2021-09-17	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	WEST FINLEY, Greene, PA	Pass	State
2021-09-17	EASTERN GAS TRANS & STORAGE/PUNXSUTAWNEY	PUNXSUTAWNEY, Jefferson, PA	Pass	State
2021-09-17	SCHUYLKILL ENERGY RES/ST NICHOLAS COGEN — high-priority violation on file	SHENANDOAH, Schuylkill, PA	Pass	State
2021-09-16	MERCK SHARP & DOHME LLC/WEST PT	WEST POINT, Montgomery, PA	Pass	State
2021-09-16	EASTERN GAS TRANS & STORAGE INC/JB TONKIN STA	MURRYSVILLE, Westmoreland, PA	Pass	State
2021-09-16	EAST PENN MFG CO INC/BATTERY ASSEMBLY	LYONS, Berks, PA	Pass	State
2021-09-16	ETC NORTHEAST PIPELINE LLC/BARTO COMP STA	HUGHESVILLE, Lycoming, PA	Pass	State
2021-09-16	REGENCY MARCELLUS GAS GATHERING LLC/SEVERCOOL STA	FORKSTON, Wyoming, PA	Pass	State
2021-09-16	CHESAPEAKE APPALACHIA LLC/GREGERSON SUS PAD	LACEYVILLE, Susquehanna, PA	Pass	State
2021-09-15	VITRO MEADVILLE FLAT GLASS MEADVILLE PLT/CRAWFORD	COCHRANTON, Crawford, PA	Fail	State
2021-09-15	MERCK SHARP & DOHME LLC/WEST PT	WEST POINT, Montgomery, PA	Pass	State
2021-09-15	TENNESSEE GAS PIPELINE/MARIENVILLE STA 307	MARIENVILLE, Forest, PA	Pass	State
2021-09-15	SCHUYLKILL ENERGY RES/ST NICHOLAS COGEN — high-priority violation on file	SHENANDOAH, Schuylkill, PA	Pass	State
2021-09-15	NEW MORGAN LDFL CO INC/CONESTOGA LDFL NEW MORGAN B	MORGANTOWN, Berks, PA	Pass	State
2021-09-14	BVPV STYRENICS LLC/BEAVER	MONACA, Beaver, PA	Pass	State
2021-09-14	EQM GATHERING OPCO LLC/PISCES COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2021-09-14	EXPAND OPERATING LLC/SCOTT WELLPAD	NEW MILFORD, Susquehanna, PA	Pass	State
2021-09-13	NATL FUEL GAS SUPPLY/ELLISBURG STA	ELLISBURG, Potter, PA	Pass	State
2021-09-13	MILLER MATERIALS/RUSHLAND QUARRY	RUSHLAND, Bucks, PA	Fail	State
2021-09-13	REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA	JERSEY SHORE, Lycoming, PA	Pass	State
2021-09-13	HILCORP ENERGY CO/JEFFERSON MONTGOMERY STA	JEFFERSON TOWNSHIP, Mercer, PA	Pass	State
2021-09-10	PA GEN ENERGY CO LLC/HORTON RUN RD COMP STA	CONRAD, Potter, PA	Pass	State
2021-09-10	HILCORP ENERGY CO/MAHONING BUCKER PROD FAC — high-priority violation on file	EDINBURG, Lawrence, PA	Pass	State
2021-09-10	EXPAND OPERATING LLC/HOOKER SUS PAD	MESHOPPEN, Susquehanna, PA	Pass	State
2021-09-09	UNITED REFINING CO/WARREN PLT	WARREN, Warren, PA	Pass	State
2021-09-09	NFG MIDSTREAM COVINGTON LLC/DCNR TRACT 595	ARNOT, Tioga, PA	Pass	State
2021-09-09	CHESAPEAKE APPALACHIA LLC/AMCOR WELLPAD	MESHOPPEN, Wyoming, PA	Pass	State
2021-09-09	CHILDRENS HOSP OF PHILA/ PHILA	PHILADELPHIA, Philadelphia, PA	Incomplete	Local
2021-09-08	RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file	TREMONT, Schuylkill, PA	Pass	State
2021-09-08	NFG MIDSTREAM COVINGTON LLC/WELLSBORO COMP STA 1	MANSFIELD, Tioga, PA	Pass	State
2021-09-08	NFG MIDSTREAM COVINGTON LLC/COVINGTON COMP STA	COVINGTON, Tioga, PA	Pass	State
2021-09-08	UGI TEXAS CREEK LLC/CLEGG COMP STA	TROUT RUN, Lycoming, PA	Pass	State
2021-09-08	UGI TEXAS CREEK LLC/JACKSON COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2021-09-07	COLUMBIA GAS TRANS LLC/EAGLE	CHESTER SPRINGS, Chester, PA	Pass	State
2021-09-07	NATL FUEL SUPPLY CORP/BUFFALO COMP STA	WASHINGTON, Washington, PA	Pass	State
2021-09-07	UGI TEXAS CREEK LLC/LOVELL COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2021-09-04	RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file	TREMONT, Schuylkill, PA	Pass	State
2021-09-03	SUNOCO LLC/MH RACE FUELS — high-priority violation on file	MARCUS HOOK, Delaware, PA	Pass	State
2021-09-03	MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA	WEST ALEXANDRIA, Washington, PA	Pass	State
2021-09-03	EXPAND OPERATING LLC/JOEGUSWA WELL PAD	DUSHORE, Sullivan, PA	Pass	State
2021-09-02	EASTERN GAS TRANS & STORAGE INC/ARDELL COMP STA/ELK	WEEDVILLE, Elk, PA	Pass	State
2021-09-02	PRATT CARLISLE CORRUGATING LLC/CARLISLE	CARLISLE, Cumberland, PA	Pass	State
2021-09-01	NATL FUEL GAS SUPPLY CORP/ROYSTONE COMP STA	SHEFFIELD, Warren, PA	Pass	State
2021-09-01	LAUREL MTN MIDSTREAM OPR LLC/DUNBAR COMP STA	DUNBAR, Fayette, PA	Pass	State
2021-09-01	EQM GATHERING OPCO LLC/STEELHEAD COMP STA	MARIANNA, Washington, PA	Pass	State
2021-08-31	WESTROCK CONVERTING CO LLC/DELAWARE WATER GAP	DELAWARE WATER GAP, Monroe, PA	Pass	State
2021-08-31	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2021-08-30	REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA	COGAN STA, Lycoming, PA	Pass	State
2021-08-27	AMRIZE CEMENT INC/WHITEHALL PLT — high-priority violation on file	WHITEHALL, Lehigh, PA	Pass	State
2021-08-27	MARKWEST LIBERTY BLUESTONE LLC/TRILLITH COMP STA	HARMONY, Butler, PA	Pass	State
2021-08-27	MARKWEST LIBERTY BLUESTONE LLC/ROYAL OAK COMP STA	EVANS CITY, Butler, PA	Pass	State
2021-08-26	TEXAS EASTERN TRANS LP/TE DELMONT COMP STA	GREENSBURG, Westmoreland, PA	Pass	State
2021-08-26	PHOENIX RESOURCES INC/PHOENIX RESOURCES LANDFILL	DUNCAN, Tioga, PA	Pass	State
2021-08-26	US STEEL CORP/IRVIN PLT	WEST MIFFLIN, Allegheny, PA	Pass	Local
2021-08-25	HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file	FLEETWOOD, Berks, PA	Pass	State
2021-08-25	LAUREL MTN MIDSTREAM OPR LLC/HERMINIE COMP STA	WEST NEWTON, Westmoreland, PA	Pass	State
2021-08-25	EQM GATHERING OPCO LLC/CALLISTO COMP STA	SYCAMORE, Greene, PA	Pass	State
2021-08-24	KIMBERLY CLARK CORP/CHESTER OPR	CHESTER, Delaware, PA	Pass	State
2021-08-23	MARKWEST LIBERTY MIDSTREAM & RESOURCES/JOHNSTON COMP STA	CANONSBURG, Washington, PA	Pass	State
2021-08-23	NATL FUEL GAS SUPPLY CORP/MERCER COMP STA	MERCER, Mercer, PA	Pass	State
2021-08-23	EXPAND OPERATING LLC/NR02 ENDLESS MOUNTAIN WELLPAD	MONTROSE, Susquehanna, PA	Pass	State
2021-08-23	COTERRA ENERGY INC/MEAD B PAD 1 — high-priority violation on file	MONTROSE, Susquehanna, PA	Pass	State
2021-08-20	STECKMAN RIDGE LP/CLEARVILLE	CLEARVILLE, Bedford, PA	Pass	State
2021-08-20	CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA	WIND RIDGE, Greene, PA	Pass	State
2021-08-19	GRAFTECH USA LLC/ST MARYS	SAINT MARYS, Elk, PA	Pass	State
2021-08-19	WASTE MGMT PA/TULLYTOWN RES REC FAC	TULLYTOWN, Bucks, PA	Pass	State
2021-08-19	DIVERSIFIED PROD LLC/NINEVEH 58 WELL PAD — high-priority violation on file	PROSPERITY, Washington, PA	Pass	State
2021-08-19	DIVERSIFIED PROD LLC/NV 60 WELLPAD	CLAYSVILLE, Washington, PA	Pass	State
2021-08-19	US STEEL CORP/IRVIN PLT	WEST MIFFLIN, Allegheny, PA	Pass	Local
2021-08-18	PARKHOUSE NURSING & REHAB CTR/ROYERSFORD	ROYERSFORD, Montgomery, PA	Pass	State
2021-08-18	MOSTOLLER LDFL INC/MOSTOLLER MUNICIPAL WASTE LDFL	SOMERSET, Somerset, PA	Pass	State
2021-08-18	DIVERSIFIED PROD LLC/NV 34 WELLPAD — high-priority violation on file	PROSPERITY, Washington, PA	Pass	State
2021-08-18	EXPAND OPERATING LLC/MARCUCCI JONES PAD	STEVENSVILLE, Bradford, PA	Pass	State
2021-08-17	PEOPLES NATURAL GAS CO LLC/ROARING RUN STA	APOLLO, Armstrong, PA	Pass	State
2021-08-17	US DOD/RAVEN ROCK MTN COMPLEX	BLUE RIDGE SUMMIT, Adams, PA	Pass	State
2021-08-17	REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA	CANTON, Bradford, PA	Pass	State
2021-08-17	EXPAND OPERATING LLC/N-24 BUCKHORN WELL PAD	MONTROSE, Susquehanna, PA	Pass	State
2021-08-16	SENECA RESOURCES CORP/PHC COMP STA	CLEARFIELD, Clearfield, PA	Pass	State
2021-08-16	NFG MIDSTREAM COVINGTON LLC/SHAW COMP STA	MAINESBURG, Tioga, PA	Pass	State
2021-08-13	INHANCE TECHNOLOGIES LLC/ALLENTOWN	ALLENTOWN, Lehigh, PA	Pass	State
2021-08-13	HANDSOME LAKE ENERGY LLC/KENNERDELL	KENNERDELL, Venango, PA	Pass	State
2021-08-13	EXPAND OPERATING LLC/VALENTINE CPF 1	CLIFFORD, Susquehanna, PA	Pass	State
2021-08-13	CNX MIDSTREAM OPR CO LLC/NV-57 COMP STA	PROSPERITY, Washington, PA	Pass	State
2021-08-12	COLUMBIA GAS TRANS CORP/FORKS TWP FAC EASTON CTA	EASTON, Northampton, PA	Pass	State
2021-08-12	EAST PENN MFG CO INC/BATTERY ASSEMBLY	LYONS, Berks, PA	Pass	State
2021-08-12	FAYETTE ENERGY FACILITY/MASONTOWN	MASONTOWN, Fayette, PA	Pass	State
2021-08-12	PEOPLES NATURAL GAS CO/ARNOLD COMP STA	NEW KENSINGTON, Westmoreland, PA	Pass	State
2021-08-12	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2021-08-12	ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Fail	Local
2021-08-11	COLUMBIA GAS TRANS CORP/FORKS TWP FAC EASTON CTA	EASTON, Northampton, PA	Pass	State
2021-08-11	WHEELABRATOR FALLS INC/FALLS TWP — high-priority violation on file	MORRISVILLE, Bucks, PA	Pass	State

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