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
2023-04-26	MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA	BURGETTSTOWN, Washington, PA	Pass	State
2023-04-26	NFG MIDSTREAM CLERMONT LLC/CLERMONT WEST COMP STA	EMPORIUM, Elk, PA	Pass	State
2023-04-26	REGENCY MARCELLUS GAS GATHERING LLC/ AUBURN STA	MESHOPPEN, Susquehanna, PA	Pass	State
2023-04-25	ACCURIDE ERIE LP/ERIE FORGE PLT	ERIE, Erie, PA	Pass	State
2023-04-25	PEOPLES NATURAL GAS CO LLC/CREEKSIDE COMP STA	INDIANA, Indiana, PA	Pass	State
2023-04-25	LAUREL MTN MIDSTREAM OPR LLC/BROWN COMP STA	GREENSBORO, Greene, PA	Pass	State
2023-04-25	PIN OAK ENERGY PARTNERS LLC/APTED COMP STA	GARARDS FORT, Greene, PA	Pass	State
2023-04-25	REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA	CUMMINS TWP, Lycoming, PA	Pass	State
2023-04-25	RIVERWEST APPALACHIA MIDSTREAM LLC/CLINTON COMP STA	SARVER, Butler, PA	Pass	State
2023-04-25	EXPAND OPERATING LLC/GU-VW MCMAHON WELL PAD	STEVENSVILLE, Bradford, PA	Pass	State
2023-04-24	COLUMBIA GAS TRANS CORP/GETTYSBURG COMP STA	GETTYSBURG, Adams, PA	Pass	State
2023-04-21	ATI FLAT ROLLED PRODUCTS HOLDINGS LLC/VANDERGRIFT	VANDERGRIFT, Westmoreland, PA	Pass	State
2023-04-20	MILLER MATERIALS/RUSHLAND QUARRY	RUSHLAND, Bucks, PA	Fail	State
2023-04-20	SVC MFG INC/MOUNTAIN TOP	MOUNTAIN TOP, Luzerne, PA	Fail	State
2023-04-20	USA VALLEY FAC INC/VALLEY LDFL	IRWIN, Westmoreland, PA	Pass	State
2023-04-20	WILLIAMS FIELD SVC CO LLC/WILCOX COMP STA	TUNKHANNOCK, Wyoming, PA	Pass	State
2023-04-20	EQM GATHERING OPCO LLC/EUROPA COMP STA	CENTER, Greene, PA	Pass	State
2023-04-20	EXPAND OPERATING LLC/MASSO SUS PAD	MESHOPPEN, Susquehanna, PA	Pass	State
2023-04-20	EXPAND OPERATING LLC/GU-G SOUTH WELL PAD	WYALUSING, Bradford, PA	Pass	State
2023-04-19	EVERGREEN LANDFILL/FKA PELLEGRENE SITE	CORAL, Indiana, PA	Pass	State
2023-04-19	DIVERSIFIED PROD LLC/BROOKVILLE SOUTH COMP STA	BROOKVILLE, Jefferson, PA	Pass	State
2023-04-19	WILLIAMS FIELD SVC CO LLC/SHIELDS COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2023-04-19	PERDUE AGRIBUSINESS LLC/BAINBRIDGE — high-priority violation on file	MARIETTA, Lancaster, PA	Pass	State
2023-04-19	PERDUE AGRIBUSINESS LLC/BAINBRIDGE — high-priority violation on file	MARIETTA, Lancaster, PA	Pass	State
2023-04-19	SUSQUEHANNA GATHERING CO 1 LLC/CDP 3	NEW MILFORD, Susquehanna, PA	Fail	State
2023-04-18	RQ RESINS LLC/MANOR PLT	HARRISON CITY, Westmoreland, PA	Pass	State
2023-04-18	LAUREL HIGHLANDS LAN/LAUREL HIGHLANDS LDFL	JOHNSTOWN, Cambria, PA	Pass	State
2023-04-18	LAUREL MTN MIDSTREAM OPR LLC/SHAMROCK COMP STA — high-priority violation on file	SALEM, Fayette, PA	Pass	State
2023-04-18	EQM GATHERING OPCO LLC/TERRA COMP STA	PLUM CREEK, Armstrong, PA	Pass	State
2023-04-18	EQT PROD CO/MOJO COMPRESSOR UNIT	WASHINGTON, Washington, PA	Pass	State
2023-04-17	PA DHS/TORRANCE STATE HOSP	TORRANCE, Westmoreland, PA	Pass	State
2023-04-17	SHADE LDFL INC/SHADE LDFL	CAIRNBROOK, Somerset, PA	Pass	State
2023-04-17	WILLIAMS FIELD SVC CO LLC/FRASER COMP STA	MONTROSE, Susquehanna, PA	Pass	State
2023-04-14	SUSQUEHANNA GATHERING CO 1 LLC/CDP 2	NEW MILFORD, Susquehanna, PA	Pass	State
2023-04-13	HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file	FLEETWOOD, Berks, PA	Pass	State
2023-04-13	MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART	MOUNT PLEASANT, Washington, PA	Pass	State
2023-04-13	PA GEN ENERGY CO LLC/FISK HOLLOW PAD A	ROULETTE, Potter, PA	Fail	State
2023-04-13	MARKWEST LIBERTY MIDSTREAM & RESOURCES/MCMICHAEL COMP STA	CLINTON, Beaver, PA	Pass	State
2023-04-13	CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA	WIND RIDGE, Greene, PA	Pass	State
2023-04-12	BUCKEYE TERM/GREENSBURG TERM	GREENSBURG, Westmoreland, PA	Pass	State
2023-04-12	TEXAS EASTERN TRANS LP/CHAMBERSBURG	CHAMBERSBURG, Franklin, PA	Pass	State
2023-04-12	MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-04-11	EQUITRANS LP/HARTSON	FINLEYVILLE, Washington, PA	Pass	State
2023-04-11	CNX MIDSTREAM OPR CO LLC/MAMONT COMP STA	APOLLO, Westmoreland, PA	Pass	State
2023-04-11	PINE RUN MIDSTREAM LLC/TROUT COMP STA	WORTHINGTON, Armstrong, PA	Pass	State
2023-04-10	MARKWEST LIBERTY MIDSTREAM/DRYER BOOSTER COMP STA	AVELLA, Washington, PA	Pass	State
2023-04-07	JOHNSON MATTHEY/WAYNE PLT	WAYNE, Chester, PA	Pass	State
2023-04-06	UNITED REFINING CO/WARREN PLT	WARREN, Warren, PA	Pass	State
2023-04-05	LANCASTER CNTY RRF/ LANCASTER — high-priority violation on file	BAINBRIDGE, Lancaster, PA	Pass	State
2023-04-05	COLUMBIA GAS TRANS CORP/DONEGAL COMP STA	WEST ALEXANDER, Washington, PA	Pass	State
2023-04-05	COLUMBIA GAS TRANS CORP/GREENCASTLE	GREENCASTLE, Franklin, PA	Pass	State
2023-04-05	JOHNSON MATTHEY/WAYNE PLT	WAYNE, Chester, PA	Fail	State
2023-04-05	LAUREL MTN MIDSTREAM OPR LLC/HERMINIE COMP STA	WEST NEWTON, Westmoreland, PA	Pass	State
2023-04-05	MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA	CANONSBURG, Washington, PA	Pass	State
2023-04-05	EQM GATHERING OPCO LLC/KRYPTONITE COMP STA	WASHINGTON, Washington, PA	Pass	State
2023-04-04	GLAXO SMITHKLINE/UPPER PROVIDENCE — high-priority violation on file	COLLEGEVILLE, Montgomery, PA	Pass	State
2023-04-04	DART CONTAINER CORP/LEOLA	LEOLA, Lancaster, PA	Pass	State
2023-04-04	GEISINGER MED CTR/DANVILLE	DANVILLE, Montour, PA	Pass	State
2023-04-04	LUXFER MAGTECH SAXONBURG PLT	SAXONBURG, Butler, PA	Pass	State
2023-04-04	WILLIAMS FIELD SVC CO LLC/TEEL COMP STA	SPRINGVILLE, Susquehanna, PA	Pass	State
2023-04-04	MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA	BURGETTSTOWN, Washington, PA	Pass	State
2023-04-04	MATHESON TRI GAS INC/CLEARFIELD CO2 PLT	CLEARFIELD, Clearfield, PA	Pass	State
2023-04-03	FAIRMAN CORP/BIG RUN COMP STA	PUNXSUTAWNEY, Jefferson, PA	Pass	State
2023-04-03	REGENCY MARCELLUS GATHERING LLC/BRADFORD WEST COMP STA	GRANVILLE SUMMIT, Bradford, PA	Pass	State
2023-04-03	MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2023-03-30	BLUE RIDGE LDFL CO/BLUE RIDGE LDFL	CHAMBERSBURG, Franklin, PA	Pass	State
2023-03-30	EPP RENEWABLE ENERGY/NORTHERN TIER LFGTE PLT	WEST BURLINGTON, Bradford, PA	Pass	State
2023-03-30	EXPAND T BROWN WELL COMPRESSOR	TUNKHANNOCK, Wyoming, PA	Pass	State
2023-03-29	RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file	TREMONT, Schuylkill, PA	Pass	State
2023-03-29	MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA — high-priority violation on file	HICKORY, Washington, PA	Pass	State
2023-03-28	ABINGTON MEM HOSP/ABINGTON	ABINGTON, Montgomery, PA	Pass	State
2023-03-28	REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA	CANTON, Bradford, PA	Pass	State
2023-03-28	TEMPLE UNIV HEALTH SCIENCES CAMPUS/STEAM — high-priority violation on file	PHILADELPHIA, Philadelphia, PA	Pass	Local
2023-03-27	EQT ARO LLC/VARGO COMP STA — high-priority violation on file	TROUT RUN, Lycoming, PA	Pass	State
2023-03-24	CHANCE ALUM CORP/WILLIAMSPORT PLT	WILLIAMSPORT, Lycoming, PA	Pass	State
2023-03-24	MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA	AVELLA, Washington, PA	Pass	State
2023-03-24	NFG MIDSTREAM TROUT RUN LLC/BODINE COMP STA	TROUT RUN, Lycoming, PA	Pass	State
2023-03-23	WYOMING VALLEY SANI AUTH/HANOVER STP	HANOVER TOWNSHIP, Luzerne, PA	Pass	State
2023-03-23	NEXTERA RENEWABLE FUELS LLC/FREY FARM CRESWELL LDFL	CONESTOGA, Lancaster, PA	Pass	State
2023-03-23	APPALACHIA MIDSTREAM SVC LLC/STAGECOACH COMP STA	WYALUSING, Bradford, PA	Pass	State
2023-03-23	EQUITRANS LP/JEFFERSON COMP STA	LIPPINCOTT, Greene, PA	Pass	State
2023-03-23	APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA	WYALUSING, Bradford, PA	Pass	State
2023-03-23	EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file	TROUT RUN, Lycoming, PA	Pass	State
2023-03-23	ALPEK POLYESTER USA LLC/READING	READING, Berks, PA	Pass	State
2023-03-22	COLUMBIA GAS TRANS LLC/EAGLE	CHESTER SPRINGS, Chester, PA	Pass	State
2023-03-22	TENNESSEE GAS PIPELINE CO LLC/COMP STA 321	CLIFFORD, Susquehanna, PA	Pass	State
2023-03-22	WIREROPE WORKS/WMSPT PLT	WILLIAMSPORT, Lycoming, PA	Pass	State
2023-03-22	REPSOL OIL & GAS USA LLC/PUTNAM COMP STA	TROY, Bradford, PA	Pass	State
2023-03-22	SENECA RESOURCES CO LLC/BOONE MOUNTAIN COMP STA	BROOKVILLE, Elk, PA	Pass	State
2023-03-22	EQT ARO LLC/ELBOW PAD B COMP STA — high-priority violation on file	COGAN HOUSE, Lycoming, PA	Pass	State
2023-03-21	EASTERN GAS TRANS & STORAGE INC/BOOM STA	LAWRENCEVILLE, Tioga, PA	Pass	State
2023-03-21	NEXTERA RENEWABLE FUELS LLC/CUMBERLAND CNTY LDFL	SHIPPENSBURG, Cumberland, PA	Pass	State
2023-03-21	SENECA RESOURCES CO LLC/SRC COMP STA	MT. JEWETT, McKean, PA	Pass	State
2023-03-21	SENECA RESOURCES CO LLC/SRC COMP STA	MT. JEWETT, McKean, PA	Pass	State
2023-03-21	SENECA RESOURCES CO LLC/SRC COMP STA	MT. JEWETT, McKean, PA	Pass	State
2023-03-21	EQM GATHERING OPCO LLC/HALO COMP STA	SYCAMORE, Greene, PA	Pass	State
2023-03-21	EQT ARO LLC/LARRYS CREEK PAD F COMP STA	SALLADASBURG, Lycoming, PA	Pass	State
2023-03-20	EQT ARO LLC/LARRYS CREEK COMP STA	JERSEY SHORE, Lycoming, PA	Pass	State
2023-03-20	REPSOL OIL & GAS USA LLC/DCNR 010 COMP STA	MORRIS RUN, Tioga, PA	Pass	State
2023-03-16	GLEN GERY CORP/MID ATLANTIC PLT	SHOEMAKERSVILLE, Berks, PA	Pass	State

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