EPA Air · stack tests by county and year

Air-emissions stack tests in Greene County, Pennsylvania, 2025

47Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Greene County, Pennsylvania during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Greene County facility page.

Greene County, Pennsylvania, 2025

Air-emissions stack tests in Greene County, other years

Air-emissions stack tests recorded in Greene County, Pennsylvania, 2025

Date	Facility	Kind	Agency
2025-12-16	EASTERN GAS TRANS & STORAGE/CRAYNE STA	Pass	State
2025-12-09	EQM GATHERING OPCO LLC/PIPERS RIDGE INTERCONNECT	Pass	State
2025-12-03	EQUITRANS LP/JEFFERSON COMP STA	Pass	State
2025-12-02	TEXAS EASTERN TRANS LP/HOLBROOK STA	Pass	State
2025-12-01	TEXAS EASTERN TRANS LP/WAYNESBURG STA	Pass	State
2025-11-12	COLUMBIA GAS TRANS CORP/WAYNESBURG COMP STA	Pass	State
2025-11-12	EQUITRANS LP/REDHOOK COMPRESSOR STATION	Pass	State
2025-10-28	EQM GATHERING OPCO LLC/IO COMP STA	Pass	State
2025-10-21	CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA	Pass	State
2025-10-01	EQM GATHERING OPCO LLC/SNAPPING TURTLE COMP STA	Pass	State
2025-09-30	EQM GATHERING OPCO LLC/SNAPPING TURTLE COMP STA	Pass	State
2025-09-26	GREYLOCK MIDSTREAM LLC/CUMBERLAND HENDERSON COMP STA	Pass	State
2025-09-10	CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION	Pass	State
2025-09-04	EQM GATHERING OPCO LLC/CYGRYMUS COMP STA	Pass	State
2025-08-06	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	Pass	State
2025-07-22	EQM GATHERING OPCO LLC/PETTIT COMP STA	Pass	State
2025-07-22	EQM GATHERING OPCO LLC/PETTIT COMP STA	Pass	State
2025-07-21	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	Pass	State
2025-07-15	CNX MIDSTREAM OPR CO LLC/MCQUAY COMP STA	Pass	State
2025-07-15	EQUITRANS LP/REDHOOK COMPRESSOR STATION	Pass	State
2025-07-10	EQM GATHERING OPCO LLC/COLE FARM COMPRESSOR STATION	Pass	State
2025-06-25	EQM GATHERING OPCO LLC/EUROPA COMP STA	Pass	State
2025-06-18	EQUITRANS LP/JEFFERSON COMP STA	Pass	State
2025-06-17	CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION	Pass	State
2025-06-17	EQM GATHERING OPCO LLC/EUROPA COMP STA	Pass	State
2025-06-10	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	Pass	State
2025-06-10	EQM GATHERING OPCO LLC/CALLISTO COMP STA	Pass	State
2025-06-10	EQM GATHERING OPCO LLC/CALLISTO COMP STA	Pass	State
2025-06-03	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	Pass	State
2025-05-29	GREYLOCK MIDSTREAM LLC/VERES COMP STA	Pass	State
2025-05-14	GREYLOCK MIDSTREAM LLC/KUHL-SKIB COMP STA	Pass	State
2025-05-13	EQUITRANS LP/JEFFERSON COMP STA	Pass	State
2025-05-13	GREYLOCK PRODUCTION LLC/BEACON WELL PAD	Pass	State
2025-04-23	LAUREL MTN MIDSTREAM OPR LLC/BROWN COMP STA	Pass	State
2025-04-21	EQM GATHERING OPCO LLC/CALLISTO COMP STA	Pass	State
2025-04-10	CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA	Pass	State
2025-03-26	LAUREL MTN MIDSTREAM OPR LLC/CANTARAL COMP STA	Pass	State
2025-03-10	GREYLOCK PROD LLC/WILDCAT WELL PAD	Pass	State
2025-03-04	HAMMERHEAD MIDSTREAM LLC/ANCHOR COMP STA	Pass	State
2025-02-28	CNX MIDSTREAM OPR CO LLC/RHL 22 DEHYDRATION STA	Pass	State
2025-02-27	CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION	Pass	State
2025-02-22	TEXAS EASTERN TRANS LP/HOLBROOK STA	Pass	State
2025-02-07	EQM GATHERING OPCO LLC/JUPITER COMP STA	Pass	State
2025-01-29	HAMMERHEAD MIDSTREAM LLC/ANCHOR COMP STA	Pass	State
2025-01-17	TEXAS EASTERN TRANS LP/HOLBROOK STA	Pass	State
2025-01-14	EASTERN GAS TRANS & STORAGE/CRAYNE STA	Pass	State
2025-01-02	CNX MIDSTREAM OPR CO LLC/HOPEWELL STATION	Pass	State

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

What this page shows

This page covers Clean Air Act facilities in the EPA air register with stack tests in Greene county, PA, for 2025. Stack tests recorded in 2025: 47.