EPA Air · violations by county and year

High-priority air violations in Cook County, Illinois, 2026

25Violations

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 Cook 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 Cook County facility page.

Cook County, Illinois, 2026

High-priority air violations in Cook County, other years

High-priority air violations recorded in Cook County, Illinois, 2026

Date	Facility	Kind	Agency
2026-08-02	OWENS-CORNING CORP — high-priority violation on file	Earliest FRV determination	State
2026-07-04	MIDWEST CRUSHING & SCREENING — high-priority violation on file	Earliest FRV determination	State
2026-06-18	COLOR COMMUNICATIONS LLC — high-priority violation on file	Earliest FRV determination	State
2026-06-15	GREIF PACKAGING LLC — high-priority violation on file	Earliest FRV determination	State
2026-06-15	ELECTRONIC PLATING CO INC — high-priority violation on file	Earliest FRV determination	State
2026-06-15	WEST SUBURBAN HOSPITAL — high-priority violation on file	Earliest FRV determination	State
2026-06-15	WILLIAM RAINEY HARPER COLLEGE — high-priority violation on file	Earliest FRV determination	State
2026-06-15	ABLE DIE CASTING CORP — high-priority violation on file	Earliest FRV determination	State
2026-06-15	KENNY THE KLEENER — high-priority violation on file	Earliest FRV determination	State
2026-06-15	SUN CHEMICAL CORP — high-priority violation on file	Earliest FRV determination	State
2026-06-15	R & B POWDER COATING — high-priority violation on file	Earliest FRV determination	State
2026-06-15	GENERAL SURFACE HARDENING — high-priority violation on file	Earliest FRV determination	State
2026-06-15	EDWARD HINES JR. VA HOSPITAL — high-priority violation on file	Earliest FRV determination	State
2026-06-13	HOLCIM (US) INC — high-priority violation on file	Earliest FRV determination	State
2026-05-26	MARS WRIGLEY CONFECTIONERY US LLC — high-priority violation on file	Earliest FRV determination	State
2026-05-09	H KRAMER & CO — high-priority violation on file	Earliest FRV determination	State
2026-04-21	CHEM-PLATE INDUSTRIES INC — high-priority violation on file	Earliest FRV determination	State
2026-04-05	ENGINEERED GLASS PRODUCTS LLC — high-priority violation on file	Earliest FRV determination	State
2026-03-22	METAL IMPACT LLC — high-priority violation on file	Earliest FRV determination	State
2026-03-03	BEFESA ZINC US INC — high-priority violation on file	Earliest FRV determination	State
2026-03-02	CE NIEHOFF & CO — high-priority violation on file	Earliest FRV determination	State
2026-03-01	HEARTLAND RECYCLING — high-priority violation on file	Earliest FRV determination	State
2026-02-10	PRAIRIE STATE GROUP — high-priority violation on file	Earliest FRV determination	State
2026-01-27	SIGNODE-BRIDGEVIEW — high-priority violation on file	Earliest FRV determination	State
2026-01-07	KOPPERS CARBON MATERIALS 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.