Winnebago County contains 116 EPA-regulated facilities, 4 of which are currently flagged for significant noncompliance. The county also hosts 0 Superfund sites and 30 TRI chemical reporters. EPA has assessed $5.5M in lifetime penalties and TRI reporters disclosed roughly 332.8k lb of on-site releases. That facility count is well above the Wisconsin state average of 59 per county.
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| (Former) Donaldsons One Hour Cleaners | Neenah | $0 | |
| Pioneer Metal Finishing Corp - Oshkosh Div | Oshkosh | $0 | 2025-04-01 |
| Oshkosh Wastewater Treatment Plant | Oshkosh | $0 | 2024-04-04 |
| Neenah Foundry Co - Plants 2 And 3 (W2179) | Neenah | $0 | 2023-04-03 |