EPA Air · stack tests by county and year

Air-emissions stack tests in Greene County, Pennsylvania, 2026

24Stack 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 2026. 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, 2026

Air-emissions stack tests in Greene County, other years

Air-emissions stack tests recorded in Greene County, Pennsylvania, 2026

Date	Facility	Kind	Agency
2026-08-05	TEXAS EASTERN TRANS LP/HOLBROOK STA	Pass	State
2026-08-03	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	Pass	State
2026-07-19	HILLTOP ENERGY CENTER LLC/CARMICHAELS	Pass	State
2026-06-23	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	Pass	State
2026-06-19	CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION	Pass	State
2026-06-11	LAUREL MTN MIDSTREAM OPR LLC/DAVIS COMP STA	Pass	State
2026-06-10	CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file	Pending	State
2026-06-10	EQM GATHERING OPCO LLC/CALLISTO COMP STA	Pass	State
2026-05-20	CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA	Pass	State
2026-05-13	EQUITRANS LP/JEFFERSON COMP STA	Pass	State
2026-04-20	LAUREL MTN MIDSTREAM OPR LLC/BROWN COMP STA	Pass	State
2026-04-10	CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA	Pass	State
2026-03-26	EQM GATHERING OPCO LLC/COLE FARM COMPRESSOR STATION	Pass	State
2026-03-18	LAUREL MTN MIDSTREAM OPR LLC/CANTARAL COMP STA	Pass	State
2026-03-10	EQM GATHERING OPCO LLC/HALO COMP STA	Pass	State
2026-02-12	GREYLOCK MIDSTREAM LLC/VERES COMP STA	Pass	State
2026-02-06	GREYLOCK PRODUCTION LLC/BEACON WELL PAD	Pass	State
2026-02-05	EQM GATHERING OPCO LLC/JUPITER COMP STA	Pass	State
2026-01-22	GREYLOCK MIDSTREAM LLC/KUHL-SKIB COMP STA	Pass	State
2026-01-21	EQM GATHERING OPCO LLC/PIPERS RIDGE INTERCONNECT	Pass	State
2026-01-19	EQM GATHERING OPCO LLC/HOPEWELL RIDGE INTERCONNECT STA	Pass	State
2026-01-09	GREYLOCK PROD LLC/WILDCAT WELL PAD	Pass	State
2026-01-06	EQM GATHERING OPCO LLC/IO COMP STA	Pass	State
2026-01-05	GREYLOCK MIDSTREAM LLC/CUMBERLAND HENDERSON COMP STA	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, PA, for 2026. Stack tests recorded in 2026: 24.