EPA Air · stack tests by county and year
Air-emissions stack tests in Gibson County, Indiana, 2025
- 7Stack 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 Gibson County, Indiana 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 Gibson County facility page.
Air-emissions stack tests in Gibson County, other years
Air-emissions stack tests recorded in Gibson County, Indiana, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-15 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | Pass | State |
| 2025-08-05 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | Pass | State |
| 2025-07-15 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | Pass | State |
| 2025-07-10 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | Pass | State |
| 2025-02-13 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | Pass | State |
| 2025-02-05 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | Pass | State |
| 2025-01-21 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.