EPA Air · by county
Air-emissions sources in Monroe County, Michigan
- 40Facilities
Every stationary source in Monroe County, Michigan 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 Monroe County
Each of the 40 operating major, synthetic minor and minor sources in Monroe County, Michigan has a record page: every source in Monroe County, A to Z.
By emissions classification in Monroe 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 Monroe 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 3
- 2025 inspections 22
- 2024 inspections 16
- 2023 inspections 14
- 2022 inspections 14
- 2021 inspections 13
- 2020 inspections 23
- 2019 inspections 12
- 2018 inspections 17
- 2017 inspections 11
Violations in Monroe 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 Monroe County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 14
- 2025 stack tests 18
- 2024 stack tests 7
- 2023 stack tests 6
- 2022 stack tests 8
- 2021 stack tests 5
- 2020 stack tests 5
- 2019 stack tests 7
- 2018 stack tests 4
Inspections in Monroe County, year by year · Violations in Monroe County, year by year · Stack tests in Monroe County, year by year
Other counties in Michigan
Every county in the state with at least three sources on file.
- Luce County 4
- Mackinac County 3
- Macomb County 172
- Manistee County 38
- Marquette County 22
- Mason County 16
- Mecosta County 8
- Menominee County 18
- Midland County 28
- Missaukee County 8
- Montcalm County 19
- Montmorency County 71
- Muskegon County 61
- Newaygo County 9
- Oakland County 245
- Oceana County 4
- Ogemaw County 8
- Ontonagon County 4
- Osceola County 13
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 Monroe county, MI. It lists 40 facilities in Monroe county and 8 major sources.