EPA Air · violations by state, industry and year

Utilities (NAICS 2211): violations in Wisconsin, 2026

18Violations

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 is one violation recorded during 2026 at a Wisconsin source whose primary industry code is NAICS 2211. A facility filing more than one industry code is counted under the first one on its record.

Utilities (NAICS 2211) in Wisconsin, other years

Other industries in Wisconsin, 2026

High-priority air violations recorded in Wisconsin, 2026

Date	Facility	Where	Kind	Agency
2026-08-10	WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file	OAK CREEK, Monroe, WI	Earliest FRV determination	State
2026-08-08	WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file	OAK CREEK, Monroe, WI	Earliest FRV determination	State
2026-07-22	WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file	OAK CREEK, Monroe, WI	Earliest FRV determination	State
2026-07-22	WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file	OAK CREEK, Monroe, WI	Earliest FRV determination	State
2026-06-25	ROCKGEN ENERGY CENTER — high-priority violation on file	CAMBRIDGE, Dane, WI	Earliest FRV determination	State
2026-06-25	ROCKGEN ENERGY CENTER — high-priority violation on file	CAMBRIDGE, Dane, WI	Earliest FRV determination	State
2026-04-08	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-04-08	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-04-08	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-04-08	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-04-08	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-03-23	ROCKGEN ENERGY CENTER — high-priority violation on file	CAMBRIDGE, Dane, WI	Earliest FRV determination	State
2026-03-23	ROCKGEN ENERGY CENTER — high-priority violation on file	CAMBRIDGE, Dane, WI	Earliest FRV determination	State
2026-03-16	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-02-16	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-02-16	VIRESCO TURTLE LAKE — high-priority violation on file	TURTLE LAKE, Barron, WI	Earliest FRV determination	State
2026-01-30	WPL - NEENAH GENERATING FACILITY — high-priority violation on file	NEENAH, Winnebago, WI	Earliest FRV determination	State
2026-01-30	WPL - NEENAH GENERATING FACILITY — high-priority violation on file	NEENAH, Winnebago, WI	Earliest FRV determination	State

Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.