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
2021-06-23	HERCULES CEMENT CO LLC/STOCKERTOWN	STOCKERTOWN, Northampton, PA	Pass	State
2021-06-23	EQT PRODUCTION LLC/BENEZETTE COMP STA	MEDIX RUN, Elk, PA	Pass	State
2021-06-23	GREYLOCK MIDSTREAM LLC/CUMBERLAND HENDERSON COMP STA	CARMICHAELS, Greene, PA	Fail	State
2021-06-23	CHIEF OIL & GAS TAGUE WEST COMPRESSOR	TUNKHANNOCK, Wyoming, PA	Pass	State
2021-06-22	SILGAN WHITE CAP/HAZLETON PLT	HAZLE TOWNSHIP, Luzerne, PA	Pass	State
2021-06-22	PA DHS/POLK CTR — high-priority violation on file	POLK, Venango, PA	Pass	State
2021-06-22	REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA	COGAN STA, Lycoming, PA	Pass	State
2021-06-22	BLUESTONE PIPELINE/CDP#1-A	NEW MILFORD, Susquehanna, PA	Pass	State
2021-06-22	EXPAND OPERATING LLC/PARKHURST SUS PAD	MESHOPPEN, Susquehanna, PA	Pass	State
2021-06-21	CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS	BUTLER, Butler, PA	Pass	State
2021-06-21	REGENCY MARCELLUS GAS GATHERING/CANOE RUN COMP STA	SALLADASBURG, Lycoming, PA	Pass	State
2021-06-18	BOEING CO PHILA/RIDLEY PARK PA FAC — high-priority violation on file	RIDLEY TWP, Delaware, PA	Pass	State
2021-06-18	AMAZON/NORRISTOWN	NORRISTOWN, Montgomery, PA	Fail	State
2021-06-17	WARD MFG LLC/BLOSSBURG PLTS 1-3	BLOSSBURG, Tioga, PA	Pass	State
2021-06-17	COLUMBIA GAS TRANS CORP/WAYNESBURG COMP STA	WAYNESBURG, Greene, PA	Pass	State
2021-06-17	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2021-06-17	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2021-06-16	PROCTER & GAMBLE PAPER PROD CO/MEHOOPANY	MEHOOPANY, Wyoming, PA	Pass	State
2021-06-16	EASTERN GAS TRANS & STORAGE INC/GREENLICK STA	STEWARDSON TWP, Potter, PA	Pass	State
2021-06-16	US GYPSUM CO/WASHINGTONVILLE PLT — high-priority violation on file	DANVILLE, Montour, PA	Pass	State
2021-06-16	EQM GATHERING OPCO LLC/BLUE MOON COMP STA	DAISYTOWN, Washington, PA	Pass	State
2021-06-16	EXPAND OPER LLC/ROLAND BRA PAD	WILMONT, Bradford, PA	Pass	State
2021-06-15	PROCTER & GAMBLE PAPER PROD CO/MEHOOPANY	MEHOOPANY, Wyoming, PA	Pass	State
2021-06-15	HOLY REDEEMER HOSP & MED CTR/ABINGTON	JENKINTOWN, Montgomery, PA	Pass	State
2021-06-15	PORTLAND POWER LLC/PORTLAND COMBUSTION TURBINE	PORTLAND, Northampton, PA	Pass	State
2021-06-15	REPSOL OIL & GAS LLC/COLE COMP STA	TROY, Bradford, PA	Pass	State
2021-06-15	EXPAND OPERATING LLC/KAUFMANN WELL PAD	NEW ALBANY, Bradford, PA	Pass	State
2021-06-14	EXPAND OPERATING LLC/KATIE COMPRESSOR STATION	LACEYVILLE, Susquehanna, PA	Pass	State
2021-06-11	LANCASTER CNTY SWMA/SUSQ RESOURCE MGMT COMPLEX — high-priority violation on file	HARRISBURG, Dauphin, PA	Pass	State
2021-06-11	BRDARIC BUCK MTN QUA/BUCK MTN	SWOYERVILLE, Luzerne, PA	Pass	State
2021-06-10	HEIDELBERG MATERIALS US CEMENT LLC/NAZARETH	NAZARETH, Northampton, PA	Fail	State
2021-06-10	ARMSTRONG WORLD IND /CORP CAMPUS	LANCASTER, Lancaster, PA	Pass	State
2021-06-10	REGENCY MARCELLUS GAS GATHERING LLC/ KORBAN COMP STA	HOP BOTTOM, Susquehanna, PA	Pass	State
2021-06-10	WILLIAMS FIELD SVC CO/POTTER COMP STA	KINGSLEY, Susquehanna, PA	Pass	State
2021-06-09	AMER METAL RECYCLING LLC/ELLWOOD CITY — high-priority violation on file	ELLWOOD CITY, Lawrence, PA	Pass	State
2021-06-09	YORK CNTY SOLID WASTE/YORK CNTY RESOURCE RECOVERY — high-priority violation on file	YORK, York, PA	Pass	State
2021-06-09	PEOPLES NATURAL GAS CO LLC/BELKNAP COMP STA	DAYTON, Armstrong, PA	Pass	State
2021-06-09	ENERGY TRANSF MKT & TERM LP/MARCUS HOOK TERM — high-priority violation on file	MARCUS HOOK, Delaware, PA	Pass	State
2021-06-08	UGI TEXAS CREEK LLC/TRIMBLE COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2021-06-07	UGI TEXAS CREEK LLC/YAGGIE COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2021-06-07	ETC NORTHEAST PIPELINE LLC/RED BEND COMP STA	TROUT RUN, Lycoming, PA	Pass	State
2021-06-03	MARKWEST LIBERTY BLUESTONE LLC/BLUESTONE GAS PROC PLT	EVANS CITY, Butler, PA	Pass	State
2021-06-03	UGI AUBURN GATHERING LLC/ MANNING COMPRESSOR LNG STA	MESHOPPEN, Wyoming, PA	Pass	State
2021-06-02	BLOSSBURG POWER LLC/BLOSSBURG GEN STA	BLOSSBURG, Tioga, PA	Pass	State
2021-06-02	ARMSTRONG POWER/S BEND	SHELOCTA, Armstrong, PA	Pass	State
2021-06-02	UGI AUBURN GATHERING LLC/AUBURN COMP STA	AUBURN, Susquehanna, PA	Pass	State
2021-06-02	SWN PROD CO FIONDI SITE COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2021-06-01	SOUTHWESTERN ENERGY CO/TNT LIMITED PARTNERSHIP WEST 6H	NEW MILFORD, Susquehanna, PA	Pass	State
2021-06-01	EXPAND OPERATING LLC/LU-06 FLICKS RUN EAST WELL PAD	TROUT RUN, Lycoming, PA	Pass	State
2021-05-28	SCRUBGRASS GENERATING PLT/VENANGO — high-priority violation on file	KENNERDELL, Venango, PA	Pass	State
2021-05-28	RSI METAL LITHO/GREENVILLE	GREENVILLE, Mercer, PA	Fail	State
2021-05-28	ETC NORTHEAST FLD SVC LLC/PIKE COMP STA	ROCHESTER, Beaver, PA	Pass	State
2021-05-28	NRG POWER MIDWEST L.P../BRUNOT ISLE POWE	PITTSBURGH, Allegheny, PA	Pass	State
2021-05-27	EAGLE CASTING LLC/ HANOVER — high-priority violation on file	HANOVER, York, PA	Pass	State
2021-05-27	REWORLD PLYMOUTH/ PLYMOUTH — high-priority violation on file	CONSHOHOCKEN, Montgomery, PA	Pass	State
2021-05-27	GREEN KNIGHT/PLAINFIELD LANDFILL GAS	PEN ARGYL, Northampton, PA	Pass	State
2021-05-27	NRG POWER MIDWEST L.P../BRUNOT ISLE POWE	PITTSBURGH, Allegheny, PA	Pass	State
2021-05-26	EQUITRANS LP/TRUITTSBURG STA	FAIRMOUNT CITY, Clarion, PA	Pass	State
2021-05-26	TEXAS EASTERN TRANS LP/SHERMANS DALE	SHERMANS DALE, Perry, PA	Pass	State
2021-05-26	ACCURIDE ERIE LP/ERIE FORGE PLT	ERIE, Erie, PA	Fail	State
2021-05-26	ARDEX LP/ALIQUIPPA	ALIQUIPPA, Beaver, PA	Pass	State
2021-05-25	PA GEN ENERGY CO LLC/FISK HOLLOW PAD A	ROULETTE, Potter, PA	Pass	State
2021-05-25	EXPAND OPER LLC/GU-N HEBDA VANDEMARK PAD	LACEYVILLE, Bradford, PA	Pass	State
2021-05-25	NRG POWER MIDWEST L.P../BRUNOT ISLE POWE	PITTSBURGH, Allegheny, PA	Pass	Local
2021-05-24	EXPAND OPERATING LLC/GU-G SOUTH WELL PAD	WYALUSING, Bradford, PA	Pass	State
2021-05-21	WILLIAMS FIELD SVC CO LLC/WILCOX COMP STA	TUNKHANNOCK, Wyoming, PA	Pass	State
2021-05-21	RIVERSIDE MATERIALS INC/ASPHALT PLT	PHILADELPHIA, Philadelphia, PA	Pass	State
2021-05-20	GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file	WEST HAZLETON, Luzerne, PA	Fail	State
2021-05-20	ELKHORN GAS PROC LLC/KANE PLT	KANE, McKean, PA	Pass	State
2021-05-19	SEWARD GENERATING STATION/SEWARD	NEW FLORENCE, Indiana, PA	Pass	State
2021-05-19	CALPINE MID MERIT II LLC/ YORK ENERGY CENTER BLOCK 2 — high-priority violation on file	DELTA, York, PA	Pass	State
2021-05-19	DIVERSIFIED PROD LLC/BROOKVILLE SOUTH COMP STA	BROOKVILLE, Jefferson, PA	Pass	State
2021-05-19	PA GEN ENERGY CO LLC/POTATO CREEK 1H COMP STA	CROSBY, McKean, PA	Pass	State
2021-05-19	PA GEN ENERGY CO LLC/POTATO CREEK 2H COMP STA	SMETHPORT, McKean, PA	Pass	State
2021-05-19	EQM GATHERING OPCO LLC/TWILIGHT COMP STA	DAISYTOWN, Washington, PA	Pass	State
2021-05-18	GLOBAL TUNGSTEN & POWDERS LLC/HAWES STREET PLT	TOWANDA, Bradford, PA	Fail	State
2021-05-18	SEWARD GENERATING STATION/SEWARD	NEW FLORENCE, Indiana, PA	Pass	State
2021-05-18	STAGECOACH PIPELINE & STORAGE CO LLC/MARC I M1-S COMP STA	MUNCY VALLEY, Sullivan, PA	Pass	State
2021-05-18	SUSQUEHANNA GATHERING CO 1 LLC/CDP 2	NEW MILFORD, Susquehanna, PA	Pass	State
2021-05-18	EQM GATHERING OPCO LLC/MAKO COMP STA	AMWELL, Washington, PA	Pass	State
2021-05-18	EXPAND OPERATING LLC/SIVERS BRA PAD	LACEYVILLE, Bradford, PA	Pass	State
2021-05-17	REWORLD DELAWARE VALLEY LP/DELAWARE VALLEY RES REC — high-priority violation on file	CHESTER, Delaware, PA	Pass	State
2021-05-17	HILCORP ENERGY CO/MAHONING SIEGEL FACILITY — high-priority violation on file	EDINBURG, Lawrence, PA	Pass	State
2021-05-17	HILCORP ENERGY CO/LACKAWANNOCK LARMON CTL FAC	MERCER, Mercer, PA	Pass	State
2021-05-14	MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA	WASHINGTON, Washington, PA	Pass	State
2021-05-14	SNYDER BROS INC/MUSHROOM MINE COMP STA	WORTHINGTON, Armstrong, PA	Pass	State
2021-05-14	HILCORP ENERGY CO/PULASKI WHITING CTL FAC — high-priority violation on file	EDINBURG, Lawrence, PA	Pass	State
2021-05-14	HILCORP ENERGY CO/NORTH BEAVER KEPHART PROD FAC	ENON VALLEY, Lawrence, PA	Pass	State
2021-05-13	SCHUYLKILL ENERGY RES/ST NICHOLAS COGEN — high-priority violation on file	SHENANDOAH, Schuylkill, PA	Pass	State
2021-05-13	SNYDER BROS INC/FURNACE RUN COMP STA	ADRIAN, Armstrong, PA	Pass	State
2021-05-13	RIVERWEST APPALACHIA MIDSTREAM LLC/CLINTON COMP STA	SARVER, Butler, PA	Pass	State
2021-05-13	HILCORP ENERGY CO/NCD CENTRAL FAC	NEW CASTLE, Lawrence, PA	Pass	State
2021-05-12	VITRO MEADVILLE FLAT GLASS MEADVILLE PLT/CRAWFORD	COCHRANTON, Crawford, PA	Fail	State
2021-05-12	EASTERN GAS TRANS & STORAGE INC/ELLISBURG STA	GENESSEE, Potter, PA	Pass	State
2021-05-12	ARDAGH GLASS INC/PORT ALLEGANY PLT — high-priority violation on file	PORT ALLEGANY, McKean, PA	Pass	State
2021-05-12	PA PELLETS LLC/ULYSSES BORO PLT	ULYSSES, Potter, PA	Pass	State
2021-05-12	LAUREL MTN MIDSTREAM OPR LLC/BROWN COMP STA	GREENSBORO, Greene, PA	Pass	State
2021-05-12	WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-05-12	WILLIAMS FIELD SVC CO LLC/SHIELDS COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2021-05-12	NFG MIDSTREAM CLERMONT LLC/CLERMONT WEST COMP STA	EMPORIUM, Elk, PA	Pass	State

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