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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Randolph county, IL, for 2025. It lists 10 stack tests recorded in 2025.