Wisconsin has allocated $484 million through the Clean Water Fund Program for wastewater and stormwater infrastructure projects in 82 municipalities statewide. The funding supports wastewater treatment upgrades, stormwater system improvements, phosphorus reduction measures, and replacement of aging equipment.
The Wisconsin Department of Natural Resources administers the Clean Water Fund Program in coordination with the Wisconsin Department of Administration. The program provides $438 million in subsidized low-interest loans and $46 million in principal forgiveness, which municipalities do not repay. Federal capitalization grants support part of the funding, including $42.9 million from the Clean Water State Revolving Fund, $66.6 million from Bipartisan Infrastructure Law funding, and $8.3 million for emerging contaminant clean water projects. The state will disburse funds as municipalities incur eligible project costs.
Preliminarily approved fiscal year 2026 projects include a $55.5 million wastewater treatment plant upgrade in the City of Portage. The project upgrades treatment systems, replaces aging equipment, and adds a biosolids drying system to meet phosphorus limits.
Another project allocates $3.38 million to Arkansaw Sanitary District No. 1 to construct a new lift station and force main that will convey wastewater to an existing treatment facility in Durand.