EPA Air · violations by state and year
High-priority air violations in Illinois, 2026
- 101Violations
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. Every violation below was recorded against a source in Illinois during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Illinois, 2026
- Cook County 25
- Will County 7
- Kane County 6
- DuPage County 5
- St. Clair County 5
- Madison County 4
- Rock Island County 4
- La Salle County 3
- Vermilion County 3
- Kankakee County 3
- McLean County 3
- Macon County 3
Illinois, other years
High-priority air violations recorded in Illinois, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-01-03 | PH BROUGHTON & SONS INC — high-priority violation on file | SPRINGFIELD, Sangamon, IL | Earliest FRV determination | State |
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Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.