EPA Air · stack tests by county and year
Air-emissions stack tests in Elk County, Pennsylvania, 2021
- 8Stack 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 Elk County, Pennsylvania 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 Elk County facility page.
Elk County, Pennsylvania, 2021
Air-emissions stack tests in Elk County, other years
Air-emissions stack tests recorded in Elk County, Pennsylvania, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-09-02 | EASTERN GAS TRANS & STORAGE INC/ARDELL COMP STA/ELK | Pass | State |
| 2021-08-19 | GRAFTECH USA LLC/ST MARYS | Pass | State |
| 2021-08-11 | GREENTREE BOOSTER COMPRESSOR/ BROCKWAY | Pass | State |
| 2021-06-23 | EQT PRODUCTION LLC/BENEZETTE COMP STA | Pass | State |
| 2021-05-12 | NFG MIDSTREAM CLERMONT LLC/CLERMONT WEST COMP STA | Pass | State |
| 2021-04-13 | DOMTAR PAPER CO/JOHNSONBURG MILL — high-priority violation on file | Pass | State |
| 2021-04-10 | DOMTAR PAPER CO/JOHNSONBURG MILL — high-priority violation on file | Pass | State |
| 2021-03-01 | NFG MIDSTREAM CLERMONT LLC/CLERMONT WEST COMP STA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.