EPA Air · stack tests by county and year
Air-emissions stack tests in Marshall County, West Virginia, 2021
- 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 Marshall County, West Virginia during 2021. 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 Marshall County facility page.
Marshall County, West Virginia, 2021
Air-emissions stack tests in Marshall County, other years
Air-emissions stack tests recorded in Marshall County, West Virginia, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-12-10 | EQT XL MIDSTREAM OPERATING LLC, LEGACY CONDENSATE PAD | Pass | State |
| 2021-11-18 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-11-17 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-11-16 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-11-09 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | Pass | State |
| 2021-10-27 | APPALACHIA MIDSTREAM SERVICES, L.L.C., PLEASANTS | Pass | State |
| 2021-10-06 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-10-05 | WILLIAMS OHIO VALLEY MIDSTREAM LLC, CORLEY STATION | Pass | State |
| 2021-10-05 | WILLIAMS OHIO VALLEY MIDSTREAM LLC, OAK GROVE | Pass | State |
| 2021-10-04 | WILLIAMS OHIO VALLEY MIDSTREAM LLC, BURCH RIDGE ST | Pass | State |
| 2021-09-21 | APPALACHIA MIDSTREAM SERVICES, L.L.C., MILLER STATION | Pass | State |
| 2021-08-24 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-08-24 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-08-10 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-08-10 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | Pass | State |
| 2021-07-13 | EQT XL MIDSTREAM OPERATING LLC, PAYNE STATION | Pass | State |
| 2021-07-08 | APPALACHIA MIDSTREAM SERVICES, L.L.C., SAND HILL STATION | Pass | State |
| 2021-07-01 | CERTAINTEED GYPSUM WEST VIRGINIA, INC., MOUNDSVILLE | Fail | State |
| 2021-06-23 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-06-22 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-06-17 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-06-15 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-06-10 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-06-04 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | Pass | State |
| 2021-06-02 | SWN PRODUCTION COMPANY, LLC, FORK RIDGE PAD | Pass | State |
| 2021-05-27 | BLUE RACER MIDSTREAM, LLC, NATRIUM EXTRACTION & FRACTIONA | Pass | State |
| 2021-05-26 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-05-19 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | Pass | State |
| 2021-05-03 | CNX MIDSTREAM OPERATING COMPANY LLC, DRY RIDGE STATION | Pass | State |
| 2021-04-08 | UGI APPALACHIA, LLC, MAJORSVILLE | Pass | State |
| 2021-03-26 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-03-25 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-03-23 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | Pass | State |
| 2021-03-09 | COVESTRO LLC, NEW MARTINSVILLE | Pass | State |
| 2021-03-03 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | Pass | State |
| 2021-02-25 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-02-25 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-02-25 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-02-24 | KENTUCKY POWER COMPANY, MITCHELL PLANT | Pass | State |
| 2021-02-02 | COLUMBIA GAS TRANSMISSION, LLC, LONE OAK STATION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.