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 |
|---|---|---|---|---|
| 2025-07-22 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-07-22 | DIVERSIFIED MIDSTREAM LLC, BROWNING FORK STATION | GILBERT, Logan, WV | Pass | State |
| 2025-07-17 | APPALACHIA MIDSTREAM SERVICES, L.L.C., SAND HILL STATION | DALLAS, Marshall, WV | Pass | State |
| 2025-07-16 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2025-07-16 | KINGSFORD MANUFACTURING COMPANY, PARSONS | PARSONS, Tucker, WV | Pass | State |
| 2025-07-15 | COLUMBIA GAS TRANSMISSION, LLC, ADALINE COMP. STATION | CAMERON, Marshall, WV | Pass | State |
| 2025-07-15 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2025-07-14 | APPALACHIA MIDSTREAM SERVICES, L.L.C., MOUNTAINEER COMPRESSOR | WELLSBURG, Brooke, WV | Pass | State |
| 2025-07-09 | GOFF CONNECTOR LLC, CONNECTOR STATION | BRIDGEPORT, Harrison, WV | Pass | State |
| 2025-07-09 | MORGANTOWN ENERGY ASSOCIATES, MORGANTOWN PLANT | MORGANTOWN, Monongalia, WV | Pass | State |
| 2025-07-08 | KENTUCKY POWER COMPANY, MITCHELL PLANT | MOUNDSVILLE, Marshall, WV | Pass | State |
| 2025-07-02 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2025-06-27 | QUIKRETE CONSTRUCTION MATERIALS, LLC, QUIKRETE CEMENT — high-priority violation on file | MARTINSBURG, Berkeley, WV | Pass | State |
| 2025-06-26 | OMNIS PLEASANTS, LLC, PLEASANTS POWER STATION | WILLOW ISLAND, Pleasants, WV | Pass | State |
| 2025-06-26 | ANTERO MIDSTREAM LLC, GRAYS PEAK CS | READER, Wetzel, WV | Pass | State |
| 2025-06-25 | COLUMBIA GAS TRANSMISSION, LLC, LOST RIVER | MATHIAS, Hardy, WV | Pass | State |
| 2025-06-24 | THE PROCTER AND GAMBLE MANUFACTURING COMPANY, TABLER STATION | INWOOD, Berkeley, WV | Pass | State |
| 2025-06-21 | VIRGINIA ELECTRIC AND POWER COMPANY, MT. STORM | MT. STORM, Grant, WV | Pass | State |
| 2025-06-18 | COLUMBIA GAS TRANSMISSION, LLC, WHITE OAK STATION | BROHARD, Calhoun, WV | Pass | State |
| 2025-06-18 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-06-18 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-06-17 | COLUMBIA GAS TRANSMISSION, LLC, MOUNT OLIVE | RIPLEY, Jackson, WV | Pass | State |
| 2025-06-12 | THE CHEMOURS COMPANY FC, LLC, WASHINGTON WORKS — high-priority violation on file | WASHINGTON, Wood, WV | Pass | State |
| 2025-06-11 | COLUMBIA GAS TRANSMISSION, LLC, GLENVILLE | TRUEBADA, Gilmer, WV | Pass | State |
| 2025-06-10 | ANTERO MIDSTREAM LLC, ZINNIA STATION | SALEM, Harrison, WV | Pass | State |
| 2025-06-05 | BIG SANDY PEAKER PLANT, LLC, NEAL | KENOVA, Wayne, WV | Pass | State |
| 2025-06-04 | EQM GATHERING OPCO, LLC, PANDORA STATION | WEST UNION, Doddridge, WV | Pass | State |
| 2025-06-04 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-06-04 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2025-06-04 | MPM SILICONES, LLC, FRIENDLY | FRIENDLY, Tyler, WV | Pass | State |
| 2025-06-03 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-06-03 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-06-03 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2025-05-29 | PRECOAT METALS CORP., WEIRTON | WEIRTON, Brooke, WV | Pass | State |
| 2025-05-29 | ANTERO MIDSTREAM LLC, BANNER COMPRESSOR STATION | NEW MILTON, Doddridge, WV | Pass | State |
| 2025-05-29 | COLUMBIA GAS TRANSMISSION, LLC, CEREDO | HUNTINGTON, Wayne, WV | Pass | State |
| 2025-05-29 | COLUMBIA GAS TRANSMISSION, LLC, CEREDO | HUNTINGTON, Wayne, WV | Pass | State |
| 2025-05-28 | KEPLER PROCESSING COMPANY, LLC, PINEVILLE/POCAHONTAS | PINEVILLE, Wyoming, WV | Pass | State |
| 2025-05-22 | DTM APPALACHIA GATHERING, LLC, MEPCO COMPRESSOR | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-05-22 | DTM APPALACHIA GATHERING, LLC, MEPCO COMPRESSOR | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-05-21 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-05-21 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-05-20 | EASTERN GAS TRANSMISSION AND STORAGE, INC., KENNEDY STATION | VALLEY CHAPEL, Lewis, WV | Pass | State |
| 2025-05-14 | ANTERO MIDSTREAM LLC, MIDDLEBOURNE IV | MIDDLEBOURNE, Tyler, WV | Pass | State |
| 2025-05-12 | CRANBERRY PIPELINE CORPORATION, STATEN RUN STATIO | LONDON, Kanawha, WV | Pass | State |
| 2025-05-07 | QUIKRETE CONSTRUCTION MATERIALS, LLC, QUIKRETE CEMENT — high-priority violation on file | MARTINSBURG, Berkeley, WV | Pass | State |
| 2025-05-07 | ANTERO MIDSTREAM LLC, PERKINS COMPRESSOR STATION | SALEM, Doddridge, WV | Pass | State |
| 2025-05-06 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-05-05 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | DALLAS, Marshall, WV | Pass | State |
| 2025-05-04 | VIRGINIA ELECTRIC AND POWER COMPANY, MT. STORM | MT. STORM, Grant, WV | Pass | State |
| 2025-04-30 | GREER LIME COMPANY, RIVERTON | RIVERTON, Pendleton, WV | Pass | State |
| 2025-04-29 | APPALACHIA MIDSTREAM SERVICES, L.L.C., BUFFALO STATION | BETHANY, Brooke, WV | Pass | State |
| 2025-04-29 | ANTERO MIDSTREAM LLC, LAFFERTY STATION | PENNSBORO, Ritchie, WV | Pass | State |
| 2025-04-28 | BLUE RACER MIDSTREAM, LLC, FIELD STATION 1 | READER, Wetzel, WV | Pass | State |
| 2025-04-24 | THE CHEMOURS COMPANY FC, LLC, WASHINGTON WORKS — high-priority violation on file | WASHINGTON, Wood, WV | Pass | State |
| 2025-04-23 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2025-04-22 | COLUMBIA GAS TRANSMISSION, LLC, HAMLIN | BRANCHLAND, Lincoln, WV | Pass | State |
| 2025-04-17 | APPALACHIA MIDSTREAM SERVICES, L.L.C., PLEASANTS | ADALINE, Marshall, WV | Pass | State |
| 2025-04-16 | WEYERHAEUSER COMPANY, BUCKHANNON | BUCKHANNON, Upshur, WV | Pass | State |
| 2025-04-15 | AMERICAN BITUMINOUS POWER PARTNERS, L. P., GRANT | GRANT TOWN, Marion, WV | Pass | State |
| 2025-04-15 | AMERICAN BITUMINOUS POWER PARTNERS, L. P., GRANT | GRANT TOWN, Marion, WV | Pass | State |
| 2025-04-10 | COLUMBIA GAS TRANSMISSION, LLC, WHITE OAK STATION | BROHARD, Calhoun, WV | Pass | State |
| 2025-04-10 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2025-04-09 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-04-08 | EASTERN GAS TRANSMISSION AND STORAGE, INC., SARDIS STATION | SARDIS, Harrison, WV | Pass | State |
| 2025-04-08 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | DALLAS, Marshall, WV | Pass | State |
| 2025-04-08 | CNX MIDSTREAM OPERATING COMPANY LLC, DRY RIDGE STATION | CAMERON, Marshall, WV | Pass | State |
| 2025-04-08 | MORGANTOWN ENERGY ASSOCIATES, MORGANTOWN PLANT | MORGANTOWN, Monongalia, WV | Pass | State |
| 2025-04-07 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., SHERWOOD | WEST UNION, Doddridge, WV | Pass | State |
| 2025-04-07 | AMERICAN BITUMINOUS POWER PARTNERS, L. P., GRANT | GRANT TOWN, Marion, WV | Pass | State |
| 2025-04-02 | EQM GATHERING OPCO, LLC, SATURN STATION | CENTRAL STATION, Doddridge, WV | Pass | State |
| 2025-04-02 | KENTUCKY POWER COMPANY, MITCHELL PLANT | MOUNDSVILLE, Marshall, WV | Pass | State |
| 2025-04-02 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-03-27 | APPALACHIA MIDSTREAM SERVICES, L.L.C., RIDGELINE STATION | CAMERON, Marshall, WV | Pass | State |
| 2025-03-27 | APPALACHIA MIDSTREAM SERVICES, L.L.C., BLAKE RIDGE FACILITY | NEW MARTINSVILLE, Wetzel, WV | Pass | State |
| 2025-03-26 | EQM GATHERING OPCO, LLC, SATURN STATION | CENTRAL STATION, Doddridge, WV | Pass | State |
| 2025-03-26 | APPALACHIA MIDSTREAM SERVICES, L.L.C., RIDGELINE STATION | CAMERON, Marshall, WV | Pass | State |
| 2025-03-20 | COVESTRO LLC, NEW MARTINSVILLE | PROCTOR, Marshall, WV | Pass | State |
| 2025-03-18 | WILLIAMS OHIO VALLEY MIDSTREAM LLC, FT. BEELER | CAMERON, Marshall, WV | Pass | State |
| 2025-03-18 | COLUMBIA GAS TRANSMISSION, LLC, FILES CREEK | BEVERLY, Randolph, WV | Pass | State |
| 2025-03-17 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., SHERWOOD | WEST UNION, Doddridge, WV | Pass | State |
| 2025-03-13 | CHARLESTON AREA MEDICAL CENTER, INC., GENERAL HOSPITAL | CHARLESTON, Kanawha, WV | Pass | State |
| 2025-03-13 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | DALLAS, Marshall, WV | Pass | State |
| 2025-03-12 | EQM GATHERING OPCO, LLC, JANUS STATION | WEST UNION, Doddridge, WV | Pass | State |
| 2025-03-12 | CHARLESTON AREA MEDICAL CENTER, INC., GENERAL HOSPITAL | CHARLESTON, Kanawha, WV | Pass | State |
| 2025-03-11 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2025-03-10 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MOBLEY GAS PLANT | SMITHFIELD, Wetzel, WV | Pass | State |
| 2025-03-06 | VIRGINIA ELECTRIC AND POWER COMPANY, MT. STORM | MT. STORM, Grant, WV | Pass | State |
| 2025-03-04 | AMERICAN WOODMARK CORPORATION, SOUTH BRANCH | MOOREFIELD, Hardy, WV | Pass | State |
| 2025-03-04 | EASTERN GAS TRANSMISSION AND STORAGE, INC., MOCKINGBIRD HILL | PINE GROVE, Wetzel, WV | Pass | State |
| 2025-03-03 | ANTERO MIDSTREAM LLC, MONROE STATION | ALMA, Tyler, WV | Pass | State |
| 2025-02-28 | UNION CARBIDE CORPORATION, SOUTH CHARLESTON | SOUTH CHARLESTON, Kanawha, WV | Pass | State |
| 2025-02-25 | MOUNTAIN VALLEY PIPELINE, LLC, HARRIS STATION | FLATWOODS, Braxton, WV | Pass | State |
| 2025-02-25 | ALTIVIA SERVICES, LLC, INSTITUTE PLANT | DUNBAR, Kanawha, WV | Pass | State |
| 2025-02-20 | ANTERO MIDSTREAM LLC, BANNER COMPRESSOR STATION | NEW MILTON, Doddridge, WV | Pass | State |
| 2025-02-20 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | PROCTOR, Marshall, WV | Pass | State |
| 2025-02-19 | COLUMBIA GAS TRANSMISSION, LLC, MOUNT OLIVE | RIPLEY, Jackson, WV | Pass | State |
| 2025-02-19 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | PROCTOR, Marshall, WV | Pass | State |
| 2025-02-19 | KENTUCKY POWER COMPANY, MITCHELL PLANT | MOUNDSVILLE, Marshall, WV | Pass | State |
| 2025-02-18 | COLUMBIA GAS TRANSMISSION, LLC, FRAMETOWN | FRAMETOWN, Braxton, WV | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.