EPA Air · by county
Air-emissions sources in Milwaukee County, Wisconsin
- 50Facilities
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Every stationary source in Milwaukee County, Wisconsin that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
Every source’s record in Milwaukee County
Each of the 49 operating major, synthetic minor and minor sources in Milwaukee County, Wisconsin has a record page: every source in Milwaukee County, A to Z.
By emissions classification in Milwaukee County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Milwaukee County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 inspections 8
- 2025 inspections 11
- 2024 inspections 4
- 2023 inspections 5
- 2022 inspections 8
- 2021 inspections 7
- 2019 inspections 8
- 2018 inspections 3
- 2017 inspections 5
Violations in Milwaukee County, by year
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.
Stack tests in Milwaukee County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
Inspections in Milwaukee County, year by year · Violations in Milwaukee County, year by year · Stack tests in Milwaukee County, year by year
Other counties in Wisconsin
Every county in the state with at least three sources on file.
- Jefferson County 18
- Juneau County 7
- Kenosha County 16
- Kewaunee County 8
- La Crosse County 30
- Lincoln County 7
- Manitowoc County 20
- Marathon County 31
- Marinette County 12
- Menominee County 16
- Monroe County 46
- Oconto County 14
- Oneida County 6
- Outagamie County 6
- Ozaukee County 21
- Pepin County 3
- Polk County 5
- Portage County 4
- Price County 12
Facilities
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Milwaukee county, WI. It lists 50 facilities in Milwaukee county and 6 major sources.