EPA Air · stack tests by county and year
Air-emissions stack tests in St. Clair County, Illinois, 2025
- 4Stack 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 St. Clair 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 St. Clair County facility page.
St. Clair County, Illinois, 2025
Air-emissions stack tests in St. Clair County, other years
Air-emissions stack tests recorded in St. Clair County, Illinois, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-17 | SUL4R-PLUS LLC | Pass | State |
| 2025-10-09 | MILAM RECYCLING AND DISPOSAL FACILITY | Pass | State |
| 2025-10-09 | MILAM RECYCLING AND DISPOSAL FACILITY | Pass | State |
| 2025-10-09 | MILAM RECYCLING AND DISPOSAL FACILITY | 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 St. Clair county, IL, in 2025. It lists 4 stack tests recorded in 2025.