EPA Air · stack tests by county and year

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

40Stack 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 Lycoming 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 Lycoming County facility page.

Lycoming County, Pennsylvania, 2026

Air-emissions stack tests in Lycoming County, other years

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

Date	Facility	Kind	Agency
2026-08-24	REGENCY MARCELLUS GAS GATHERING/CANOE RUN COMP STA	Pass	State
2026-08-18	REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA	Pass	State
2026-08-18	REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA	Pass	State
2026-07-29	NFG MIDSTREAM TROUT RUN LLC/TROUT RUN MTN COMP STA	Pass	State
2026-07-15	RANGE RESOURCES APPALACHIA LLC/17 - 22 WELL PAD	Pending	State
2026-07-15	RANGE RESOURCES APPALACHIA LLC/17 - 22 WELL PAD	Pass	State
2026-06-30	EQT ARO LLC/BIEBER SISTERS COMP STA	Pass	State
2026-06-29	EQT ARO LLC/SALT RUN A COMP STA	Pass	State
2026-06-29	EQT ARO LLC/SALT RUN A COMP STA	Pass	State
2026-06-19	REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA	Pass	State
2026-06-17	NFG MIDSTREAM TROUT RUN LLC/HAGERMAN GAS & PROC METERING FAC	Pass	State
2026-06-15	UGI TEXAS CREEK LLC/CLEGG COMP STA	Pass	State
2026-05-27	NEXTERA RENEWABLE FUELS LLC/LYCO LANDFILL LFGTE PLT	Pass	State
2026-05-05	RANGE RESOURCES APPALACHIA/LAUREL HILL D 17531 PAD	Pass	State
2026-04-28	REGENCY MARCELLUS GAS GATHERING LLC/ROUPP COMP STA	Pass	State
2026-04-15	REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA	Pass	State
2026-04-15	ETC NORTHEAST PIPELINE LLC/RED BEND COMP STA	Pass	State
2026-04-02	REGENCY MARCELLUS GAS GATHERING/CANOE RUN COMP STA	Pass	State
2026-04-01	REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA	Pass	State
2026-04-01	REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA	Pass	State
2026-03-18	NFG MIDSTREAM TROUT RUN LLC/BODINE COMP STA	Pass	State
2026-03-10	EQT ARO LLC/COP TRACT 685 COMP STA — high-priority violation on file	Pass	State
2026-03-05	EQT ARO LLC/TRACT 289 COMP STA — high-priority violation on file	Pass	State
2026-03-04	EQT ARO LLC/VARGO COMP STA — high-priority violation on file	Pass	State
2026-03-03	EQT ARO LLC/LARRYS CREEK COMP STA	Pass	State
2026-02-25	EQT ARO LLC/ELBOW PAD B COMP STA — high-priority violation on file	Pass	State
2026-02-23	EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file	Pass	State
2026-02-16	TRANSCONTINENTAL GAS/SALLADASBURG STATION 520	Pass	State
2026-02-13	EXPAND OPERATING LLC/LU-06 FLICKS RUN EAST WELL PAD	Pass	State
2026-02-11	EXPAND OPERATING LLC/TI-09-BROWN WELL PAD	Pass	State
2026-02-09	RANGE RESOURCES APPALACHIA LLC/LAUREL HILL G	Pass	State
2026-02-05	RANGE RESOURCES APPALACHIA LLC/SGL 075A 12682	Pass	State
2026-02-02	REGENCY MARCELLUS GAS GATHERING/CANOE RUN COMP STA	Pass	State
2026-01-27	REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA	Pass	State
2026-01-15	HAMILTON PATRIOT LLC/HAMILTON PATRIOT GENERATION PLANT — high-priority violation on file	Pass	State
2026-01-14	HEP PENNSYLVANIA GATHERING LLC/LAUREL HILL COMP STA	Pass	State
2026-01-14	HEP PENNSYLVANIA GATHERING LLC/LAUREL HILL COMP STA	Pass	State
2026-01-08	REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA	Pass	State
2026-01-07	ETC NORTHEAST PIPELINE LLC/BARTO COMP STA	Pass	State
2026-01-05	DELTA WELL SITE — high-priority violation on file	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 Lycoming county, PA, for 2026. It lists 36 stack tests recorded in 2026.