EPA Air · stack tests by county and year
Air-emissions stack tests in Clearfield County, Pennsylvania, 2025
- 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 Clearfield 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 Clearfield County facility page.
Clearfield County, Pennsylvania, 2025
Air-emissions stack tests in Clearfield County, other years
Air-emissions stack tests recorded in Clearfield County, Pennsylvania, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-08-15 | SENECA RESOURCES CORP/PHC COMP STA | Pass | State |
| 2025-07-10 | GLENN O HAWBAKER INC/DUBOIS PLT 4 | Pass | State |
| 2025-06-24 | GREYLOCK PROD LLC/ANSONVILLE COMP STA | Pass | State |
| 2025-05-19 | RW GATHERING LLC/MOSHANNON COMP STA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.