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
2021-08-11	GLASGOW INC/SPRINGHOUSE ASPHALT PLANT/QUARRY	MONTGOMERYVILLE, Montgomery, PA	Fail	State
2021-08-11	EASTERN GAS TRANS & STORAGE INC/OAKFORD COMPRESSOR STA	DELMONT, Westmoreland, PA	Pass	State
2021-08-11	GREENTREE BOOSTER COMPRESSOR/ BROCKWAY	BROCKWAY, Elk, PA	Pass	State
2021-08-11	MARKWEST LIBERTY M&R/TUPTA DAY COMP STA	WASHINGTON, Washington, PA	Pass	State
2021-08-11	FRESHPET INC/BETHLEHEM	BETHLEHEM, Northampton, PA	Fail	State
2021-08-10	YORK BLDG PROD CO INC/ROOSEVELT AVE	YORK, York, PA	Pass	State
2021-08-10	FRESHPET INC/BETHLEHEM	BETHLEHEM, Northampton, PA	Pass	State
2021-08-09	MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA	CANONSBURG, Washington, PA	Pass	State
2021-08-09	MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2021-08-06	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2021-08-06	ALLEGHENY LUDLUM LLC/BRACKENRIDGE	BRACKENRIDGE, Allegheny, PA	Pass	Local
2021-08-05	MAGNESITA REFRACTORIES/YORK — high-priority violation on file	YORK, York, PA	Fail	State
2021-08-05	COLUMBIA GAS TRANS LLC/EAGLE	CHESTER SPRINGS, Chester, PA	Pass	State
2021-08-05	FENNER INC/FENNER PRECISION POLYMERS — high-priority violation on file	MANHEIM, Lancaster, PA	Pass	State
2021-08-05	SURTECO NORTH AMER INC/JEANNETTE PLT	JEANNETTE, Westmoreland, PA	Pass	State
2021-08-05	CNTY LDFL INC/CNTY ENVIRONMENTAL OF CLARION	LEEPER, Clarion, PA	Pass	State
2021-08-05	APPALACHIA MIDSTREAM SVC LLC/RATTLESNAKE HILL COMP STA	AUBURN TOWNSHIP, Susquehanna, PA	Pass	State
2021-08-05	ULTRA POLY CORP/PORTLAND	PORTLAND, Northampton, PA	Pass	State
2021-08-05	ALLEGHENY LUDLUM LLC/BRACKENRIDGE	BRACKENRIDGE, Allegheny, PA	Pass	Local
2021-08-04	TRANSCONTINENTAL GAS/WHARTON STATION 535	AUSTIN, Potter, PA	Pass	State
2021-08-04	ARMSTRONG CEMENT & SUPPLY/WINFIELD — high-priority violation on file	CABOT, Butler, PA	Pass	State
2021-08-04	WHEELABRATOR FALLS INC/FALLS TWP — high-priority violation on file	MORRISVILLE, Bucks, PA	Pass	State
2021-08-04	BUCKEYE TERM LLC/MALVERN TERM	MALVERN, Chester, PA	Pass	State
2021-08-04	KEYSTONE CONEMAUGH PROJ LLC/CONEMAUGH STATION	NEW FLORENCE, Indiana, PA	Pass	State
2021-08-04	KEYSTONE CONEMAUGH PROJ LLC/CONEMAUGH STATION	NEW FLORENCE, Indiana, PA	Pass	State
2021-08-04	WILLIAMS FIELD SVC CO LLC/KANE ROAD COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2021-08-04	NFG MIDSTREAM TROUT RUN LLC/HAGERMAN GAS & PROC METERING FAC	TROUT RUN, Lycoming, PA	Pass	State
2021-08-04	MARKWEST LIBERTY BLUESTONE LLC/ROYAL OAK COMP STA	EVANS CITY, Butler, PA	Pass	State
2021-08-03	WILLIAMS FIELD SVC CO LLC/NORTHEAST COMP STA	HALLSTEAD, Susquehanna, PA	Pass	State
2021-08-02	EUREKA STONE QUARRY/RUSH VALLEY 1 — high-priority violation on file	RUSHLAND, Bucks, PA	Pass	State
2021-08-02	WILLIAMS FIELD SVC CO LLC/SNAKE CREEK COMP STA	CLARKS SUMMIT, Susquehanna, PA	Pass	State
2021-07-29	ADVANCED CAST PRODUCTS/MEADVILLE — high-priority violation on file	MEADVILLE, Crawford, PA	Pass	State
2021-07-29	KEYSTONE CONEMAUGH PROJ LLC/KEYSTONE STATION	SHELOCTA, Armstrong, PA	Pass	State
2021-07-28	SCHUYLKILL ENERGY RES/ST NICHOLAS COGEN — high-priority violation on file	SHENANDOAH, Schuylkill, PA	Pass	State
2021-07-28	GRAYMONT PA INC/PLEASANT GAP & CON-LIME & BELLEFONTE PLTS	BELLEFONTE, Centre, PA	Fail	State
2021-07-28	PERDUE AGRIBUSINESS LLC/BAINBRIDGE — high-priority violation on file	MARIETTA, Lancaster, PA	Pass	State
2021-07-28	BLACKHILL ENERGY LLC/BEARDSLEE COMP STA	TROY, Bradford, PA	Pass	State
2021-07-28	REGENCY MARCELLUS GAS GATHERING LLC/MEHOOPANY STA	TUNKHANNOCK, Wyoming, PA	Pass	State
2021-07-27	TOWER HEALTH SYS/READING HOSP	READING, Berks, PA	Pass	State
2021-07-27	EASTERN GAS TRANS & STORAGE/RURAL VLY COMP STA	KITTANNING, Armstrong, PA	Pass	State
2021-07-26	UGI MORAINE EAST GATHERING LLC/RENICK COMP STA	WEST SUNBURY, Butler, PA	Pass	State
2021-07-26	EXPAND RUTH WYO PAD	MESHOPPEN, Wyoming, PA	Pass	State
2021-07-24	HILLTOP ENERGY CENTER LLC/CARMICHAELS	CARMICHAELS, Greene, PA	Pass	State
2021-07-22	EASTERN GAS TRANSMISSION & STORAGE INC/BEAVER	BEAVER FALLS, Beaver, PA	Pass	State
2021-07-22	PINE RUN MIDSTREAM LLC/BASS COMP STA	SAXONBURG, Butler, PA	Pass	State
2021-07-22	EQM GATHERING OPCO LLC/PETTIT COMP STA	HOLBROOK, Greene, PA	Pass	State
2021-07-22	HILLTOP ENERGY CENTER LLC/CARMICHAELS	CARMICHAELS, Greene, PA	Pass	State
2021-07-22	RIVERSIDE MATERIALS INC/ASPHALT PLT	PHILADELPHIA, Philadelphia, PA	Pass	State
2021-07-22	WEBER DISPLAY & PACKAGING — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	State
2021-07-21	VALLEY ENTERPRISE CONTAINER/LIBERTY TWP PLT	BLANCHARD, Centre, PA	Pass	State
2021-07-20	NACEVILLE MATERIALS/COOPERSBURG MATERIALS	COOPERSBURG, Bucks, PA	Pass	State
2021-07-20	ABINGTON RELDAN METALS LLC/FAIRLESS HILLS — high-priority violation on file	FAIRLESS HILLS, Bucks, PA	Pass	State
2021-07-20	HEP PENNSYLVANIA GATHERING LLC/CLARK CPF 1 COMP STA	WYSOX, Bradford, PA	Pass	State
2021-07-20	HEP PENNSYLVANIA GATHERING LLC/LAUREL HILL COMP STA	TROUT RUN, Lycoming, PA	Pass	State
2021-07-19	ETC NORTHEAST PIPELINE LLC/RED BEND COMP STA	TROUT RUN, Lycoming, PA	Pass	State
2021-07-16	HEIDELBERG MATERIALS US CEMENT LLC/NAZARETH	NAZARETH, Northampton, PA	Fail	State
2021-07-16	COLUMBIA GAS TRANS CORP/DONEGAL COMP STA	WEST ALEXANDER, Washington, PA	Pass	State
2021-07-15	EASTERN GAS TRANS & STORAGE INC/STATE LINE STA	GENESEE, Potter, PA	Pass	State
2021-07-15	COLUMBIA GAS TRANS LLC/ARTEMAS COMP STA	ARTEMAS, Bedford, PA	Pass	State
2021-07-15	GEISINGER HEALTH SYS/ WILKES BARRE	WILKES BARRE, Luzerne, PA	Pass	State
2021-07-15	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2021-07-14	VITRO MEADVILLE FLAT GLASS MEADVILLE PLT/CRAWFORD	COCHRANTON, Crawford, PA	Pass	State
2021-07-14	PEOPLES NATURAL GAS CO LLC/VALLEY STA	YATESBORO, Armstrong, PA	Pass	State
2021-07-14	MONTOUR LLC/MONTOUR SES	WASHINGTONVILLE, Montour, PA	Pass	State
2021-07-14	RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file	TREMONT, Schuylkill, PA	Pass	State
2021-07-14	HAMILTON LIBERTY LLC/HAMILTON LIBERTY LLC — high-priority violation on file	WYSOX, Bradford, PA	Pass	State
2021-07-14	HEP PENNSYLVANIA GATHERING LLC/WHITE CPF 1 COMP STA	STEVENSVILLE, Bradford, PA	Pass	State
2021-07-14	EQM GATHERING OPCO LLC/HALO COMP STA	SYCAMORE, Greene, PA	Pass	State
2021-07-13	DIVERSIFIED PROD MARCHAND COMP STA	INDIANA, Indiana, PA	Pass	State
2021-07-13	COLUMBIA GAS TRANS LLC/IOWA COMP STA	BROOKVILLE, Jefferson, PA	Pass	State
2021-07-13	HAMILTON PATRIOT LLC/HAMILTON PATRIOT GENERATION PLANT — high-priority violation on file	MONTGOMERY, Lycoming, PA	Pass	State
2021-07-13	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2021-07-12	HEP PA GATHERING LLC/GREENZWEIG COMP STA	WYALUSING, Bradford, PA	Pass	State
2021-07-08	EASTERN GAS TRANS & STORAGE INC/SABINSVILLE STA	WESTFIELD, Tioga, PA	Pass	State
2021-07-08	KEYSTONE CONEMAUGH PROJ LLC/KEYSTONE STATION	SHELOCTA, Armstrong, PA	Pass	State
2021-07-08	TEXAS EASTERN TRANS LP/TE DELMONT COMP STA	GREENSBURG, Westmoreland, PA	Pass	State
2021-07-08	COLUMBIA GAS TRANS CORP/GREENCASTLE	GREENCASTLE, Franklin, PA	Pass	State
2021-07-08	NFG MIDSTREAM COVINGTON LLC/MATZ COMP STA	CHATHAM, Tioga, PA	Pass	State
2021-07-08	NFG MIDSTREAM COVINGTON LLC/NETTERMAN COMP STA	WELLSBORO, Tioga, PA	Pass	State
2021-07-08	REGENCY MARCELLUS GAS GATHERING LLC/ AUBURN STA	MESHOPPEN, Susquehanna, PA	Pass	State
2021-07-08	BLUESTONE PIPELINE CO OF PA CDP#5/HARFORD TWP	NEW MILFORD, Susquehanna, PA	Pass	State
2021-07-01	GOLD BOND BLDG PROD/MILTON PLT — high-priority violation on file	NEW COLUMBIA, Union, PA	Pass	State
2021-07-01	ETC NORTHEAST PIPELINE/GALAXY COMP STA	PARKER, Butler, PA	Pass	State
2021-07-01	XPRESS NATURAL GAS LLC/MONTROSE — high-priority violation on file	MONTROSE, Susquehanna, PA	Pass	State
2021-06-30	TEXAS EASTERN TRANS LP/SHERMANS DALE	SHERMANS DALE, Perry, PA	Pass	State
2021-06-30	NEXTERA RENEWABLE FUELS LLC/LYCO LANDFILL LFGTE PLT	MONTGOMERY, Lycoming, PA	Pass	State
2021-06-30	ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-06-29	LAUREL MTN MIDSTREAM OPR LLC/CLYDE COMP STA	NEW FLORENCE, Indiana, PA	Pass	State
2021-06-29	ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2021-06-29	ECO-ENERGY DISTRIBUTION SERVICES	PHILADELPHIA COUNTY, Philadelphia, PA	Pass	Local
2021-06-29	ECO-ENERGY DISTRIBUTION SERVICES	PHILADELPHIA COUNTY, Philadelphia, PA	Pass	Local
2021-06-28	REWORLD DELAWARE VALLEY LP/DELAWARE VALLEY RES REC — high-priority violation on file	CHESTER, Delaware, PA	Pass	State
2021-06-28	CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION	GRAYSVILLE, Greene, PA	Pass	State
2021-06-28	CABOT OIL & GAS CORP/FOLTZ J PAD 1	HOP BOTTOM, Susquehanna, PA	Pass	State
2021-06-25	WILLIAMS FIELD SVC CO LLC/HAWLEY COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2021-06-24	LEADING TECH/LEECHBURG	LEECHBURG, Armstrong, PA	Fail	State
2021-06-24	CHIEF GATHERING LLC/PMG ANNIE WELLPAD	NICHOLSON, Susquehanna, PA	Pass	State
2021-06-24	EXPAND T BROWN WELL COMPRESSOR	TUNKHANNOCK, Wyoming, PA	Pass	State
2021-06-24	ALLEGHENY CNTY SANI AUTH/ALLEGHENY CNTY	PITTSBURGH, Allegheny, PA	Fail	Local
2021-06-24	ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local

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