EPA Air · stack tests by county and year
Air-emissions stack tests in Randolph County, Illinois, 2025
- 10Stack 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, Illinois 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.
Air-emissions stack tests in Randolph County, other years
Air-emissions stack tests recorded in Randolph County, Illinois, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-18 | MISSISSIPPI LIME CO | Pass | State |
| 2025-09-17 | DYNEGY MIDWEST GENERATION LLC | Pass | State |
| 2025-09-16 | DYNEGY MIDWEST GENERATION LLC | Pass | State |
| 2025-09-16 | DYNEGY MIDWEST GENERATION LLC | Pass | State |
| 2025-09-16 | DYNEGY MIDWEST GENERATION LLC | Pass | State |
| 2025-06-10 | CITY OF RED BUD | Pass | State |
| 2025-06-10 | CITY OF RED BUD | Pass | State |
| 2025-06-10 | CITY OF RED BUD | Pass | State |
| 2025-06-09 | CITY OF RED BUD | Pass | State |
| 2025-06-09 | CITY OF RED BUD | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.