EPA Air · violations by county and year
High-priority air violations in DuPage County, Illinois, 2026
- 5Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Each row below is one violation recorded against a source in DuPage 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 DuPage County facility page.
DuPage County, Illinois, 2026
- Inspections 14
High-priority air violations in DuPage County, other years
High-priority air violations recorded in DuPage County, Illinois, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-08-04 | NORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL — high-priority violation on file | Earliest FRV determination | State |
| 2026-06-25 | NALCO CO LLC — high-priority violation on file | Earliest FRV determination | State |
| 2026-06-06 | EDGED CHICAGO LLC — high-priority violation on file | Earliest FRV determination | State |
| 2026-02-03 | AMPAC — high-priority violation on file | Earliest FRV determination | State |
| 2026-01-10 | NTT GLOBAL DATA CENTERS CH LLC — high-priority violation on file | Earliest FRV determination | State |
Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.