EPA Air · stack tests by county and year
Air-emissions stack tests in Cook County, Illinois, 2025
- 18Stack 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 Cook 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 Cook County facility page.
Cook County, Illinois, 2025
Air-emissions stack tests in Cook County, other years
Air-emissions stack tests recorded in Cook County, Illinois, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-11 | ALLIED TUBE & CONDUIT CORP | Pass | State |
| 2025-09-17 | BWAY CORP | Pass | State |
| 2025-09-16 | BWAY CORP | Pass | State |
| 2025-09-12 | US ENERGY MT PROSPECT TERMINAL | Pass | State |
| 2025-09-10 | KINDER MORGAN LIQUIDS TERMINALS LLC | Pass | State |
| 2025-09-05 | KINDER MORGAN LIQUID TERMINALS LP | Pass | State |
| 2025-09-04 | KINDER MORGAN LIQUIDS TERMINALS LLC | Pass | State |
| 2025-06-20 | CHRIST HOSPITAL & MEDICAL CENTER | Fail | State |
| 2025-06-20 | CHRIST HOSPITAL & MEDICAL CENTER | Fail | State |
| 2025-05-16 | HEIDELBERG MATERIALS MIDWEST AGG INC | Pass | State |
| 2025-04-02 | A FINKL & SONS CO | Pass | State |
| 2025-04-02 | A FINKL & SONS CO | Pass | State |
| 2025-03-25 | INGREDION INC — high-priority violation on file | Fail | State |
| 2025-03-24 | ADVOCATE ILLINOIS MASONIC MEDICAL CENTER | Pass | State |
| 2025-03-24 | ADVOCATE ILLINOIS MASONIC MEDICAL CENTER | Pass | State |
| 2025-01-30 | NORTHWEST COMMUNITY HOSPITAL | Pass | State |
| 2025-01-30 | NORTHWEST COMMUNITY HOSPITAL | Pass | State |
| 2025-01-29 | SYENSQO USA LLC | Pending | U.S. EPA |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.