Franklin County contains 282 EPA-regulated facilities, 32 of which are currently flagged for significant noncompliance. The county also hosts 3 Superfund sites and 20 TRI chemical reporters. EPA has assessed $6.3M in lifetime penalties and TRI reporters disclosed roughly 991.7k lb of on-site releases. That facility count is well above the Missouri state average of 61 per county.
| Site | City | Status |
|---|---|---|
| Riverfront | New Haven | Cleanup underway |
| Oak Grove Village Well | Sullivan | Cleanup underway |
| Sporlan Valve Plant 1 | Washington | Listed on NPL |
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Ameren Missouri Labadie Energy Center | Labadie | 981.2k | Penalties |
| Plaze Inc | St Clair | 3.3k | Compliant |
| Aerofil Technology, Inc. | Sullivan | 2.7k | Compliant |
| Plaze, Incorporated | Pacific | 2.1k | Sig. violation |
| Henniges Automotive Sealing Systems Na Danny Scott Drive | New Haven | 1.0k | Compliant |
| Rti Advanced Forming Inc | Washington | 1.0k | Compliant |
| Plaze, Incorporated | St. Clair | 187 | Penalties |
| Dap Products, Inc. - Pacific Facility | Pacific | 48 | Compliant |
| Atro Engineered Systems | Saint Clair | 5 | Compliant |
| Smithfoods Pacific | Pacific | 5 | Compliant |
| M & R Plating Inc | Washington | 5 | Compliant |
| Meramec Industries Inc Ramsey St Plant | Sullivan | 2 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Plaze, Incorporated | Pacific | $411.6k | 2025-11-19 |
| Windfall Estates Mhp Wwtp | Catawissa | $2.2k | 2025-09-18 |
| Camp Woodland Hills Wwtp | Saint Clair | $0 | 2025-01-27 |
| Meramec Campground Wwtp | Stanton | $0 | 2023-02-23 |
| Beaufort Apartments Wwtp | Beaufort | $0 | 2021-12-15 |
| Ccsd Catawissa Wwtf | Catawissa | $0 | 2024-03-20 |
| Pleasant View Apartments Wwtp | Washington | $0 | 2021-08-26 |
| Labadie Wwtf | Labadie | $0 | 2025-12-17 |
| Cloud Manufacturing, Llc | Union | $0 | 2009-06-05 |
| Beauty View Acres Wwtf | Gray Summit | $0 | 2025-12-17 |
| Westview Mobile Home Park Wwtp | Union | $0 | 2022-12-14 |
| Fcpwsd No. 3 Little Fox Creek Wwtp | Gray Summit | $0 | 2025-04-30 |
| Washington Ad1, Llc | Washington | $0 | |
| Havin Material Service-St Clair Plant | St. Clair | $0 | 2025-03-27 |
| Ccsd, Robertsville Wwtf | Robertsville | $0 | 2024-10-10 |
| Gray Summit Wwtf | Gray Summit | $0 | 2025-10-08 |
| Bourbeuse Mobile Home Park | Union | $0 | 2025-10-08 |
| Havin Red E Mix Llc | St. Clair | $0 | 2022-03-03 |
| Havin Red E Mix Llc Sullivan Plant | Sullivan | $0 | 2017-03-02 |
| Berger Wwtf | Berger | $0 | 2022-06-06 |
| Faller Mhp Wwtf | St. Clair | $0 | 2020-09-17 |
| Pacific Pool | Pacific | $0 | |
| Camp Tambo | Union | $0 | 2026-02-19 |
| Countryside Mhp Wwtp | Beaufort | $0 | 2019-12-05 |
| Baucky View Subd Wwtf | Union | $0 | 2025-01-16 |
| Kobers Mhp | Pacific | $0 | 2018-03-22 |
| Horse Shoe Bend Mhp | Union | $0 | 2021-06-09 |
| 40-Acre Club | Lonedell | $0 | 2025-08-11 |
| Beaufort Custom Meat Pro Llc | Leslie | $0 | 2021-02-02 |
| Myrick Manor Wwtf | Union | $0 | 2026-01-05 |
| Osage Villas Wwtf | Villa Ridge | $0 | 2023-05-11 |
| Agape House | St. Clair | $0 | 2020-07-21 |