On Wednesday, November 11, 2026, the City of Marshfield was notified regarding a spill of an unknown substance originating from an unknown source/location, ultimately being released from the City of Marshfield’s Storm Sewer System at the outfall to Mill Creek within Wildwood Park.
The area of the City that drains to this outfall includes the downtown, south of the CN railroad tracks – see the attached storm sewer map. This spill has released an unknown volume of contaminated water to the surface waters of Mill Creek. City staff are continuing to monitor the situation and work closely with the Wisconsin Department of Natural Resources regarding this release.
Due to the unknown nature of this spill/release, the City is requesting that anyone with information about this spill/release, including where it originated from, the substance spilled, how the spill occurred, who is responsible for the spill, etc., contact the City of Marshfield Public Works Department at (715) 486-2034
If there are questions related to this spill/release event, please also contact the Public Works Department at (715) 486-2034.
(Map courtesy of the City of Marshfield via press release)
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