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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Gibson county, IN, for 2025. The stack tests recorded in 2025 total 7.