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Treatment Plant Wastewater Spill June 13, 2026

06/18/26 12:00:pm

MMSD reported to the Wisconsin Department of Natural Resources an estimated 270 gallons of wastewater leaked from a sump pump hose onto land surface at the Jones Island Water Reclamation Facility on June 13, 2026. No wastewater entered storm drains, Lake Michigan, or nearby rivers.