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
2023-06-08	UGI TEXAS CREEK LLC/CASTLE COMP STA	CANTON, Bradford, PA	Pass	State
2023-06-07	PEOPLES NATURAL GAS CO LLC/LIMESTONE COMP STA	SUMMERVILLE, Clarion, PA	Pass	State
2023-06-07	UGI TEXAS CREEK LLC/TRIMBLE COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2023-06-07	UGI TEXAS CREEK LLC/YAGGIE COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2023-06-07	UGI AUBURN GATHERING LLC/ MANNING COMPRESSOR LNG STA	MESHOPPEN, Wyoming, PA	Pass	State
2023-06-06	O-I GLASS INC/OWENS BROCKWAY GLASS CONTAINER PLT 19	BROCKPORT, Jefferson, PA	Pass	State
2023-06-06	CHAMBERSBURG BORO/FALLING SPRING 2ND ST DIESEL POWER PLT	CHAMBERSBURG, Franklin, PA	Pass	State
2023-06-06	REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA	COGAN STA, Lycoming, PA	Pass	State
2023-06-06	UGI TEXAS CREEK LLC/LOVELL COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2023-06-05	MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA	WEST ALEXANDRIA, Washington, PA	Pass	State
2023-06-01	LANCASTER CNTY SWMA/SUSQ RESOURCE MGMT COMPLEX — high-priority violation on file	HARRISBURG, Dauphin, PA	Pass	State
2023-06-01	PA DEPT OF CORR/HOUTZDALE SCI	HOUTZDALE, Clearfield, PA	Pass	State
2023-06-01	CLARION BOARDS/CLARION PLT	SHIPPENVILLE, Clarion, PA	Pass	State
2023-06-01	WCAA MIDSTREAM LLC/WEITZ SOUTH 20 COMP STA	ADAMSBURG, Westmoreland, PA	Pass	State
2023-06-01	SYNTHOMER JEFFERSON HILLS LLC	WEST ELIZABETH, Allegheny, PA	Fail	Local
2023-05-31	GLASGOW INC/SPRINGHOUSE ASPHALT PLANT/QUARRY	MONTGOMERYVILLE, Montgomery, PA	Pass	State
2023-05-31	WATSONTOWN BRICK CO/WATSONTOWN PLT	WATSONTOWN, Northumberland, PA	Pass	State
2023-05-31	MTN GATHERING/ADAMS COMP STA	VANDERBILT, Fayette, PA	Pass	State
2023-05-31	WILLIAMS FIELD SVC CO LLC/HAWLEY COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2023-05-31	COLUMBIA GAS TRANS LLC/REDD FARM COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-05-31	XTO ENERGY INC/WINSLOW	REYNOLDSVILLE, Jefferson, PA	Pass	State
2023-05-31	LOAN ASSET ISSUER LLC/WEST FINLEY 6 WELL PAD	WEST FINLEY, Washington, PA	Pass	State
2023-05-31	LOAN ASSET ISSUER LLC/WEST FINLEY 5 WELL PAD	WEST FINLEY, Washington, PA	Pass	State
2023-05-31	BYLER QUARRIES LLC/FIDDLERS ELBOW QUARRY S	MIDDLETOWN, Dauphin, PA	Fail	State
2023-05-30	LOAN ASSET ISSUER LLC/WEST FINLEY 1 WELL PAD	WEST FINLEY, Washington, PA	Pass	State
2023-05-30	LOAN ASSET ISSUER LLC/WEST FINLEY 4 WELL PAD	WEST FINELY, Washington, PA	Pass	State
2023-05-26	MOXIE FREEDOM GENERATION PLANT/SALEM TWP	BERWICK, Luzerne, PA	Pass	State
2023-05-25	MARKWEST LIBERTY MIDSTREAM & RESOURCES/REDD COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-05-25	WILLIAMS FIELD SVC CO LLC/MILLER COMP STA	NEW MILFORD, Susquehanna, PA	Pass	State
2023-05-25	WILLIAMS FIELD SVC CO/POTTER COMP STA	KINGSLEY, Susquehanna, PA	Pass	State
2023-05-25	HILCORP ENERGY CO/NORTH BEAVER KEPHART PROD FAC	ENON VALLEY, Lawrence, PA	Pass	State
2023-05-25	CONSTELLATION GENERATING CO/RICHMOND	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-05-24	MILLER MATERIALS/RUSHLAND QUARRY	RUSHLAND, Bucks, PA	Pass	State
2023-05-24	GEORGIA PACIFIC PANEL PRODUCTS LLC/MOUNT JEWETT MDF	KANE, McKean, PA	Pass	State
2023-05-24	REWORLD PLYMOUTH/ PLYMOUTH — high-priority violation on file	CONSHOHOCKEN, Montgomery, PA	Pass	State
2023-05-24	REGENCY MARCELLUS GATHERING LLC/BRADFORD WEST COMP STA	GRANVILLE SUMMIT, Bradford, PA	Pass	State
2023-05-24	SNYDER BROS INC/FURNACE RUN COMP STA	ADRIAN, Armstrong, PA	Pass	State
2023-05-24	MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT	EVANS CITY, Butler, PA	Pass	State
2023-05-24	SNYDER BROS INC/AMBROSE COMP STA	ADRIAN, Armstrong, PA	Pass	State
2023-05-24	HILCORP ENERGY CO/NCD CENTRAL FAC	NEW CASTLE, Lawrence, PA	Pass	State
2023-05-24	SNYDER BROS INC/ENSIGN COMPRESSOR STATION	FREEPORT, Armstrong, PA	Pass	State
2023-05-24	CONSTELLATION GENERATING CO/RICHMOND	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-05-23	REGENCY MARCELLUS GAS GATHERING/CANOE RUN COMP STA	SALLADASBURG, Lycoming, PA	Pass	State
2023-05-23	HILCORP ENERGY CO/PULASKI WHITING CTL FAC — high-priority violation on file	EDINBURG, Lawrence, PA	Pass	State
2023-05-22	H & K MATERIALS/SKUNK HOLLOW QUARRY	CHALFONT, Bucks, PA	Pass	State
2023-05-22	SNYDER BROS INC/FURNACE RUN COMP STA	ADRIAN, Armstrong, PA	Pass	State
2023-05-22	SNYDER BROS INC/MUSHROOM MINE COMP STA	WORTHINGTON, Armstrong, PA	Pass	State
2023-05-22	HILCORP ENERGY CO/MAHONING SIEGEL FACILITY — high-priority violation on file	EDINBURG, Lawrence, PA	Pass	State
2023-05-19	MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA	BURGETTSTOWN, Washington, PA	Pass	State
2023-05-18	PROCTER & GAMBLE PAPER PROD CO/MEHOOPANY	MEHOOPANY, Wyoming, PA	Fail	State
2023-05-18	KC MIDSTREAM SOLUTIONS LLC/OVERBEK STA	RIDGWAY, Elk, PA	Pass	State
2023-05-18	US DEPT DEFENSE/TOBYHANNA ARMY DEPOT	TOBYHANNA, Monroe, PA	Pass	State
2023-05-17	MARS WRIGLEY US LLC/ELIZABETHTOWN	ELIZABETHTOWN, Lancaster, PA	Pass	State
2023-05-17	GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file	WEST HAZLETON, Luzerne, PA	Pass	State
2023-05-17	GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file	WEST HAZLETON, Luzerne, PA	Pass	State
2023-05-16	NLMK PENNSYLVANIA LLC/FARRELL PLT — high-priority violation on file	FARRELL, Mercer, PA	Pass	State
2023-05-16	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	WEST FINLEY, Greene, PA	Fail	State
2023-05-16	TEXAS EASTERN TRANS LP/SHERMANS DALE	SHERMANS DALE, Perry, PA	Pass	State
2023-05-16	ELKHORN GAS PROC LLC/KANE PLT	KANE, McKean, PA	Pass	State
2023-05-16	EQM GATHERING OPCO LLC/MAKO COMP STA	AMWELL, Washington, PA	Pass	State
2023-05-16	CABOT OIL & GAS CORP/FOLTZ J PAD 1	HOP BOTTOM, Susquehanna, PA	Pass	State
2023-05-16	P&G 2 WELL SITE	TUNKHANNOCK, Wyoming, PA	Pass	State
2023-05-15	COTERRA ENERGY INC/ANDERSON R PAD 1 — high-priority violation on file	MESHOPPEN, Susquehanna, PA	Pass	State
2023-05-15	COTERRA ENERGY INC/LAMBERT R PAD 1	KINGSLEY, Susquehanna, PA	Pass	State
2023-05-12	KEYSTONE PORTLAND CEMENT/EAST ALLEN — high-priority violation on file	BATH, Northampton, PA	Pass	State
2023-05-11	CABOT OIL & GAS CORP/TEDDICK, M. PAD 1	KINGSLEY, Susquehanna, PA	Pass	State
2023-05-11	CABOT OIL & GAS CORP/JEFFERS FARMS PAD 5	GIBSON, Susquehanna, PA	Pass	State
2023-05-10	EQUITRANS LP/TRUITTSBURG STA	FAIRMOUNT CITY, Clarion, PA	Fail	State
2023-05-10	OLDCASTLE APG/EASTON	EASTON, Northampton, PA	Pass	State
2023-05-10	MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-05-10	AIRLITE PLASTICS CO/NAZARETH	NAZARETH, Northampton, PA	Pass	State
2023-05-10	ALLEGHENY CNTY SANI AUTH/ALLEGHENY CNTY	PITTSBURGH, Allegheny, PA	Pass	Local
2023-05-09	WASTE MGMT PA/TULLYTOWN RES REC FAC	TULLYTOWN, Bucks, PA	Pass	State
2023-05-09	SOUTHWESTERN ENERGY CO/TNT LIMITED PARTNERSHIP WEST 6H	NEW MILFORD, Susquehanna, PA	Pass	State
2023-05-09	EXPAND OPER LLC/GU-N HEBDA VANDEMARK PAD	LACEYVILLE, Bradford, PA	Pass	State
2023-05-05	ST MARYS CARBON CO/ST MARYS	SAINT MARYS, Elk, PA	Pass	State
2023-05-05	EXPAND OPER LLC/TI-46-BLISS WELL PAD	LIBERTY, Tioga, PA	Pass	State
2023-05-04	NATL FUEL GAS SUPPLY/ELLISBURG STA	ELLISBURG, Potter, PA	Pass	State
2023-05-04	ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file	CABOT, Butler, PA	Pass	State
2023-05-04	NEXTERA RENEWABLE FUELS LLC/BLUE RIDGE LDFL	SCOTLAND, Franklin, PA	Pass	State
2023-05-04	MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA	WEST ALEXANDRIA, Washington, PA	Pass	State
2023-05-04	EXPAND OPERATING LLC/JES BRA WELL PAD	WILMONT, Bradford, PA	Pass	State
2023-05-04	EXPAND OPERATING LLC/CERCA BRA PAD	WYALUSING, Bradford, PA	Pass	State
2023-05-04	EXPAND OPERATING LLC/ RU-13 TONYA EAST PAD	NEW MILFORD, Susquehanna, PA	Pass	State
2023-05-04	NORTHEAST WPCP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-05-04	NORTHEAST WPCP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-05-04	NORTHEAST WPCP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-05-04	NORTHEAST WPCP/PHILA — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-05-03	MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA	AVELLA, Washington, PA	Pass	State
2023-05-03	NEXTERA RENEWABLE FUELS LLC/BLUE RIDGE LDFL	SCOTLAND, Franklin, PA	Pass	State
2023-05-03	EQM GATHERING OPCO LLC/PETTIT COMP STA	HOLBROOK, Greene, PA	Pass	State
2023-05-03	EXPAND OPERATING LLC/NR02 ENDLESS MOUNTAIN WELLPAD	MONTROSE, Susquehanna, PA	Pass	State
2023-05-02	PA STATE SYS OF HIGHER ED/INDIANA UNIV	INDIANA, Indiana, PA	Pass	State
2023-05-02	YORK BLDG PROD CO INC/ROOSEVELT AVE	YORK, York, PA	Fail	State
2023-05-02	SWN PROD CO FIONDI SITE COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2023-05-01	EXPAND OPERATING LLC/LU-06 FLICKS RUN EAST WELL PAD	TROUT RUN, Lycoming, PA	Pass	State
2023-04-27	DART CONTAINER CORP/LEOLA	LEOLA, Lancaster, PA	Pass	State
2023-04-27	REGENCY MARCELLUS GAS GATHERING LLC/SEVERCOOL STA	FORKSTON, Wyoming, PA	Pass	State
2023-04-27	EXPAND OPERATING LLC/MCGAVIN WELL PAD	MESHOPPEN, Susquehanna, PA	Pass	State
2023-04-26	EQM GATHERING OPCO LLC/TWILIGHT COMP STA	DAISYTOWN, Washington, PA	Pass	State

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