EPA Air · stack tests by county and year
Air-emissions stack tests in DuPage County, Illinois, 2025
- 13Stack 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 DuPage 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 DuPage County facility page.
DuPage County, Illinois, 2025
- Inspections 20
Air-emissions stack tests in DuPage County, other years
Air-emissions stack tests recorded in DuPage County, Illinois, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-25 | HINSDALE HOSPITAL | Pass | State |
| 2025-11-25 | HINSDALE HOSPITAL | Pass | State |
| 2025-11-25 | HINSDALE HOSPITAL | Pass | State |
| 2025-11-25 | HINSDALE HOSPITAL | Pass | State |
| 2025-10-14 | ARGONNE NATIONAL LABORATORY | Pass | State |
| 2025-07-31 | MCCRONE GROUP THE | Pass | State |
| 2025-03-07 | PAXXUS INC | Pass | State |
| 2025-03-07 | PAXXUS INC | Pass | State |
| 2025-02-06 | PAXXUS INC | Pending | State |
| 2025-02-06 | PAXXUS INC | Pass | State |
| 2025-02-06 | PAXXUS INC | Pending | State |
| 2025-02-05 | PAXXUS INC | Pass | State |
| 2025-02-05 | PAXXUS INC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.