EPA Air · stack tests by county and year
Air-emissions stack tests in Randolph County, Missouri, 2025
- 6Stack 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 Randolph County, Missouri 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 Randolph County facility page.
Randolph County, Missouri, 2025
Air-emissions stack tests in Randolph County, other years
Air-emissions stack tests recorded in Randolph County, Missouri, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-12 | THOMAS HILL ENERGY CENTER - POWER DIVISION | Pass | State |
| 2025-10-07 | THOMAS HILL ENERGY CENTER - POWER DIVISION | Pass | State |
| 2025-06-27 | THOMAS HILL ENERGY CENTER - POWER DIVISION | Pass | State |
| 2025-04-30 | THOMAS HILL ENERGY CENTER - POWER DIVISION | Pass | State |
| 2025-04-11 | THOMAS HILL ENERGY CENTER - POWER DIVISION | Pass | State |
| 2025-03-06 | THOMAS HILL ENERGY CENTER - POWER DIVISION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.