EPA Air · stack tests by county and year
Air-emissions stack tests in Lycoming County, Pennsylvania, 2025
- 51Stack 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 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 Lycoming County facility page.
Lycoming County, Pennsylvania, 2025
Air-emissions stack tests in Lycoming County, other years
Air-emissions stack tests recorded in Lycoming County, Pennsylvania, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-09 | PA GEN ENERGY CO LLC/TRACT 729 COMPRESSOR STATION | Pass | State |
| 2025-11-25 | ETC NORTHEAST PIPELINE LLC/BARTO COMP STA | Pass | State |
| 2025-11-25 | NFG MIDSTREAM TROUT RUN LLC/TROUT RUN MTN COMP STA | Pass | State |
| 2025-11-24 | ETC NORTHEAST PIPELINE LLC/RED BEND COMP STA | Pass | State |
| 2025-11-10 | REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ EAST COMP STA | Pass | State |
| 2025-11-07 | ISA WELL SITE — high-priority violation on file | Pass | State |
| 2025-11-03 | RANGE RESOURCES APPALACHIA LLC/LAUREL HILL WELL PAD B | Pass | State |
| 2025-10-23 | REGENCY MARCELLUS GAS GATHERING/CANOE RUN COMP STA | Pass | State |
| 2025-10-23 | REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA | Pass | State |
| 2025-10-20 | EQT ARO LLC/VARGO COMP STA — high-priority violation on file | Pass | State |
| 2025-10-02 | PA GEN ENERGY CO LLC/COP TRACT 293 COMP STA | Pass | State |
| 2025-09-17 | REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA | Pass | State |
| 2025-08-28 | REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA | Pass | State |
| 2025-08-25 | LAUREL HILL PAD A 12635 | Pass | State |
| 2025-08-13 | ANDRITZ INC/MUNCY FOUNDRY | Pass | State |
| 2025-08-13 | BIMBO BAKERIES USA INC/WILLIAMSPORT PLT | Pass | State |
| 2025-07-30 | NFG MIDSTREAM TROUT RUN LLC/HAGERMAN GAS & PROC METERING FAC | Pass | State |
| 2025-07-28 | PREMIER WELL SITE — high-priority violation on file | Pass | State |
| 2025-07-23 | HEP PENNSYLVANIA GATHERING LLC/LAUREL HILL COMP STA | Pass | State |
| 2025-07-22 | NFG MIDSTREAM TROUT RUN LLC/TROUT RUN MTN COMP STA | Pass | State |
| 2025-07-02 | RANGE RESOURCES APPALACHIA/LAUREL HILL D 17531 PAD | Pass | State |
| 2025-07-01 | EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file | Pass | State |
| 2025-06-19 | REGENCY MARCELLUS GAS GATHERING LLC/ROUPP COMP STA | Pass | State |
| 2025-06-13 | HAMILTON PATRIOT LLC/HAMILTON PATRIOT GENERATION PLANT — high-priority violation on file | Pass | State |
| 2025-06-12 | REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA | Pass | State |
| 2025-06-11 | UGI TEXAS CREEK LLC/CLEGG COMP STA | Pass | State |
| 2025-06-11 | HAMILTON PATRIOT LLC/HAMILTON PATRIOT GENERATION PLANT — high-priority violation on file | Pass | State |
| 2025-06-11 | NFG MIDSTREAM TROUT RUN LLC/TROUT RUN MTN COMP STA | Pass | State |
| 2025-06-02 | REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA | Pass | State |
| 2025-05-30 | NEXTERA RENEWABLE FUELS LLC/LYCO LANDFILL LFGTE PLT | Pass | State |
| 2025-04-23 | COMPASS NATURAL GAS/QUAKER CNG TRUCK TERMINAL | Pass | State |
| 2025-04-16 | ETC NORTHEAST PIPELINE LLC/BARTO COMP STA | Pass | State |
| 2025-04-15 | ETC NORTHEAST PIPELINE LLC/BARTO COMP STA | Pass | State |
| 2025-03-18 | NFG MIDSTREAM TROUT RUN LLC/BODINE COMP STA | Pass | State |
| 2025-03-13 | EQT ARO LLC/COP TRACT 685 COMP STA — high-priority violation on file | Pass | State |
| 2025-03-12 | REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA | Pass | State |
| 2025-03-10 | EQT ARO LLC/TRACT 289 COMP STA — high-priority violation on file | Pass | State |
| 2025-03-10 | EXPAND OPERATING LLC/LU-06 FLICKS RUN EAST WELL PAD | Pass | State |
| 2025-03-06 | EQT ARO LLC/VARGO COMP STA — high-priority violation on file | Pass | State |
| 2025-03-04 | EQT ARO LLC/LARRYS CREEK COMP STA | Pass | State |
| 2025-03-04 | EXPAND OPERATING LLC/TI-09-BROWN WELL PAD | Pass | State |
| 2025-03-03 | TRANSCONTINENTAL GAS/SALLADASBURG STATION 520 | Pass | State |
| 2025-03-03 | EQT ARO LLC/ELBOW PAD B COMP STA — high-priority violation on file | Pass | State |
| 2025-02-26 | EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file | Pass | State |
| 2025-02-07 | SUNOCO MIDSTREAM LLC/WILLIAMSPORT - SUNOCO LLC | Pass | State |
| 2025-01-29 | RANGE RESOURCES APPALACHIA LLC/SGL 075A 12682 | Pass | State |
| 2025-01-28 | RANGE RESOURCES APPALACHIA LLC/LAUREL HILL G | Pass | State |
| 2025-01-23 | REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA | Pass | State |
| 2025-01-23 | ETC NORTHEAST PIPELINE LLC/RED BEND COMP STA | Pass | State |
| 2025-01-09 | REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA | Pass | State |
| 2025-01-09 | COMPASS NATURAL GAS/QUAKER CNG TRUCK TERMINAL | Pending | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.