EPA Air · stack tests by county and year
Air-emissions stack tests in Westmoreland County, Pennsylvania, 2026
- 11Stack 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 Westmoreland County, Pennsylvania during 2026. 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 Westmoreland County facility page.
Westmoreland County, Pennsylvania, 2026
Air-emissions stack tests in Westmoreland County, other years
Air-emissions stack tests recorded in Westmoreland County, Pennsylvania, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-13 | WCAA MIDSTREAM LLC/WEITZ SOUTH 20 COMP STA | Pass | State |
| 2026-06-23 | EQT ARTEMIS MIDSTREAM LLC/GUARDIAN COMP STA | Pass | State |
| 2026-05-14 | ENERGY TRANSFER M&T/DELMONT FACILITY | Pass | State |
| 2026-05-12 | RW GATHERING LLC/SALEM COMP STA | Pass | State |
| 2026-05-11 | WCAA UPSTREAM LLC/GRAHAM WELLPAD | Pass | State |
| 2026-05-07 | RW GATHERING LLC/ECKER BERGMAN RD COMP STA | Pass | State |
| 2026-04-01 | CNX MIDSTREAM OPR CO LLC/MAMONT COMP STA | Pass | State |
| 2026-03-09 | DIVERSIFIED PROD LLC/BELL POINT COMP STA | Pass | State |
| 2026-02-27 | CNX MIDSTREAM OPR CO LLC/BELL POINT 2 M&R DEHYDRATION STA | Pass | State |
| 2026-02-25 | WCAA MIDSTREAM LLC/WEITZ SOUTH 20 COMP STA | Pass | State |
| 2026-02-19 | EQT ARTEMIS MIDSTREAM LLC/ROGERS COMP STA — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.