EPA Air · stack tests by state and year
Air-emissions stack tests in West Virginia, 2025
- 224Stack 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 West Virginia during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in West Virginia, 2025
- Marshall County 38
- Monongalia County 23
- Harrison County 22
- Doddridge County 14
- Putnam County 13
- Wetzel County 11
- Tyler County 8
- Marion County 8
- Mason County 7
- Hardy County 6
- Kanawha County 6
- Berkeley County 6
- Brooke County 5
- Upshur County 5
- Grant County 5
- Wayne County 5
- Pendleton County 4
- Jackson County 4
- Braxton County 4
- Fayette County 3
- Lewis County 3
- Wood County 3
- Hancock County 3
West Virginia, other years
Air-emissions stack tests recorded in West Virginia, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-02-18 | AMERICAN BITUMINOUS POWER PARTNERS, L. P., GRANT | GRANT TOWN, Marion, WV | Pass | State |
| 2025-02-13 | ANTERO MIDSTREAM LLC, SOUTH CANTON STATION | WEST UNION, Doddridge, WV | Pass | State |
| 2025-02-13 | EQT XL MIDSTREAM OPERATING LLC, PAYNE STATION | GLEN EASTON, Marshall, WV | Pass | State |
| 2025-02-07 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-02-06 | WEYERHAEUSER NR COMPANY, HEATERS | HEATERS, Braxton, WV | Pass | State |
| 2025-02-06 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-02-05 | COLUMBIA GAS TRANSMISSION, LLC, LOST RIVER | MATHIAS, Hardy, WV | Pass | State |
| 2025-02-05 | APPALACHIA MIDSTREAM SERVICES, L.L.C., MILLER STATION | BANNEN, Marshall, WV | Pass | State |
| 2025-02-05 | APPALACHIA MIDSTREAM SERVICES, L.L.C., MILLER STATION | BANNEN, Marshall, WV | Pass | State |
| 2025-02-05 | MOUNTAIN VALLEY PIPELINE, LLC, BRADSHAW STATION | MANNINGTON, Wetzel, WV | Pass | State |
| 2025-02-04 | EASTERN GAS TRANSMISSION AND STORAGE, INC., LIGHTBURN STATION | JANE LEW, Lewis, WV | Pass | State |
| 2025-02-04 | COLUMBIA GAS TRANSMISSION, LLC, SENECA | SENECA ROCKS, Pendleton, WV | Pass | State |
| 2025-01-29 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-01-28 | APPALACHIA MIDSTREAM SERVICES, L.L.C., BUFFALO STATION | BETHANY, Brooke, WV | Pass | State |
| 2025-01-28 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-01-28 | APPALACHIAN POWER CO. - MOUNTAINEER PLANT, NEW HAVEN | NEW HAVEN, Mason, WV | Pass | State |
| 2025-01-24 | VIRGINIA ELECTRIC AND POWER COMPANY, MT. STORM | MT. STORM, Grant, WV | Pass | State |
| 2025-01-24 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-01-21 | ANTERO MIDSTREAM LLC, PERKINS COMPRESSOR STATION | SALEM, Doddridge, WV | Pass | State |
| 2025-01-13 | BLUE RACER MIDSTREAM, LLC, NATRIUM EXTRACTION & FRACTIONA | NATRIUM, Marshall, WV | Pass | State |
| 2025-01-13 | APPALACHIAN POWER CO. - MOUNTAINEER PLANT, NEW HAVEN | NEW HAVEN, Mason, WV | Pass | State |
| 2025-01-10 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-01-09 | MOUNTAIN STATE CLEAN ENERGY, LLC, MAIDSVILLE | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-01-07 | APPALACHIAN POWER CO. - MOUNTAINEER PLANT, NEW HAVEN | NEW HAVEN, Mason, WV | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.