EPA Air · stack tests by county and year
Air-emissions stack tests in Indiana County, Pennsylvania, 2026
- 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 Indiana 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 Indiana County facility page.
Indiana County, Pennsylvania, 2026
Air-emissions stack tests in Indiana County, other years
Air-emissions stack tests recorded in Indiana County, Pennsylvania, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-12 | PA STATE SYS OF HIGHER ED/INDIANA UNIV | Pass | State |
| 2026-06-11 | DIVERSIFIED PROD LLC/HOMER CITY COMP STA | Pass | State |
| 2026-04-30 | DIVERSIFIED PROD MARCHAND COMP STA | Pass | State |
| 2026-04-15 | KEYSTONE CONEMAUGH PROJ LLC/CONEMAUGH STATION | Pass | State |
| 2026-03-04 | EASTERN GAS TRANS & STORAGE/ROCHESTER MILLS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.