EPA Air · stack tests by county and year
Air-emissions stack tests in Indiana County, Pennsylvania, 2025
- 9Stack 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 Indiana 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 Indiana County facility page.
Indiana County, Pennsylvania, 2025
Air-emissions stack tests in Indiana County, other years
Air-emissions stack tests recorded in Indiana County, Pennsylvania, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-22 | XTO ENERGY HOMER CITY PP COMP STA/INDIANA — high-priority violation on file | Pass | State |
| 2025-11-04 | PEOPLES GAS CO LLC/KINTER STA | Pass | State |
| 2025-10-22 | PEOPLES NATURAL GAS/EGRY STA | Pass | State |
| 2025-08-14 | XTO ENERGY HOMER CITY PP COMP STA/INDIANA — high-priority violation on file | Fail | State |
| 2025-07-09 | SEWARD GENERATING STATION/SEWARD | Pass | State |
| 2025-06-25 | CREPS UNITED PUBLICATIONS/WINDY RIDGE IND PARK | Pass | State |
| 2025-06-25 | CREPS UNITED PUBLICATIONS/WINDY RIDGE IND PARK | Pass | State |
| 2025-06-05 | PA STATE SYS OF HIGHER ED/INDIANA UNIV | Pass | State |
| 2025-01-16 | TEXAS EASTERN TRANS LP/ARMAGH STA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.