Monroe County contains 110 EPA-regulated facilities, 9 of which are currently flagged for significant noncompliance. The county also hosts 0 Superfund sites and 17 TRI chemical reporters. EPA has assessed $5.4M in lifetime penalties and TRI reporters disclosed roughly 1.0M lb of on-site releases. That facility count is well above the Michigan state average of 57 per county.
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Monroe | Monroe | 968.3k | Sig. violation |
| North Star Steel Co | Monroe | 18.2k | Sig. violation |
| Guardian Industries Corporation-Carleton Facility | Carleton | 15.0k | Compliant |
| Advanced Heat Treat Corp | Monroe | 11.4k | Compliant |
| Dte Electric Company - Fermi Energy Center | Newport | 3.6k | Compliant |
| National Galvanizing Hs Processing Lp | Monroe | 2.5k | Penalties |
| B.o.p. Federal Correctional Institute | Milan | 1.1k | Compliant |
| Autolign Mfg Group | Milan | 655 | Compliant |
| Pioneer Metal Finishing-Monroe | Monroe | 58 | Compliant |
| R J Marshall Co | Erie | 20 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| North Star Steel Co | Monroe | $36.2k | 2025-08-19 |
| Shm Toledo Beach Llc | La Salle | $0 | 2020-09-24 |
| Luna Pier Truck Depot | Luna Pier | $0 | |
| Erie Twp Ms4-Monroe | Erie | $0 | 2026-03-12 |
| Monroe | Monroe | $0 | 2024-09-16 |
| Orchards Mhp | Carleton | $0 | 2022-05-10 |
| Bedford Twp Ms4-Monroe | Temperance | $0 | 2022-08-31 |
| Mason Consolidated Schools Wwtp | Erie | $0 | 2024-05-07 |
| South Rockwood Ms4-Monroe | South Rockwood | $0 |