Chemical Feed Systems and Wastewater Processing (3 Municipal Water/6 Wastewater Credits) No Fee May 19, 2026 – Black River Falls Municipal Utilities Building, 349 S McKinley Street, Black River Falls, WI 54615 May 20, 2026 – Wisconsin Dells WWTF, 8 South Bowman Road, Wisconsin Dells, WI 53965 May 21, 2026 – Saukville WWTF, 1600 Cottontail ... Chemical Feed Systems and Wastewater Processing (3 Municipal Water/6 Wastewater Credits)