EPA Air · stack tests by county and year
Air-emissions stack tests in Clarion County, Pennsylvania, 2025
- 5Stack 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 Clarion 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 Clarion County facility page.
Clarion County, Pennsylvania, 2025
- Inspections 33
Air-emissions stack tests in Clarion County, other years
Air-emissions stack tests recorded in Clarion County, Pennsylvania, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-16 | PEOPLES NATURAL GAS CO LLC/LIMESTONE COMP STA | Pass | State |
| 2025-06-26 | EQUITRANS LP/TRUITTSBURG STA | Pass | State |
| 2025-05-07 | EQUITRANS LP/TRUITTSBURG STA | Pass | State |
| 2025-01-25 | CLARION BOARDS/CLARION PLT | Pass | State |
| 2025-01-03 | CLARION BOARDS/CLARION PLT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.