EPA Air · stack tests by county and year
Air-emissions stack tests in Clark County, Illinois, 2026
- 11Stack 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 Clark County, Illinois during 2026. 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 Clark County facility page.
Air-emissions stack tests in Clark County, other years
Air-emissions stack tests recorded in Clark County, Illinois, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-25 | MARSHALL MUNICIPAL UTILITIES | Pass | State |
| 2026-06-24 | MARSHALL MUNICIPAL UTILITIES | Pass | State |
| 2026-06-23 | MARSHALL MUNICIPAL UTILITIES | Pass | State |
| 2026-06-18 | CITY OF CASEY | Pass | State |
| 2026-06-18 | CITY OF CASEY | Pass | State |
| 2026-06-17 | CITY OF CASEY | Pass | State |
| 2026-06-08 | ID CASTINGS OF ILLINOIS LLC — high-priority violation on file | Pass | State |
| 2026-06-08 | ID CASTINGS OF ILLINOIS LLC — high-priority violation on file | Pass | State |
| 2026-06-08 | ID CASTINGS OF ILLINOIS LLC — high-priority violation on file | Pass | State |
| 2026-03-26 | ID CASTINGS OF ILLINOIS LLC — high-priority violation on file | Pass | State |
| 2026-03-25 | ID CASTINGS OF ILLINOIS LLC — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.