EPA Air · stack tests by county and year
Air-emissions stack tests in Mason County, West Virginia, 2021
- 4Stack 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 Mason 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 Mason County facility page.
Air-emissions stack tests in Mason County, other years
Air-emissions stack tests recorded in Mason County, West Virginia, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-12-15 | APPALACHIAN POWER CO. - MOUNTAINEER PLANT, NEW HAVEN | Pass | State |
| 2021-08-31 | FELMAN PRODUCTION, LLC, LETART | Pass | State |
| 2021-03-16 | APPALACHIAN POWER CO. - MOUNTAINEER PLANT, NEW HAVEN | Pass | State |
| 2021-01-19 | APPALACHIAN POWER CO. - MOUNTAINEER PLANT, NEW HAVEN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.