A marina on the Mississippi in Red Wing will be closed throughout the weekend to river traffic as teams clean up an oil spill reported on Thursday.
According to WCCO, Red Wing city officials say an "oil-based seal coating" was released into the Ole Miss Marina bay when a contractor applied it to the National Guard Armory parking lot.
Officials told the TV station that the spill was contained in the harbor area and wasn't released into the main channel, with "floating containment tubes" now in place to stop it from spreading into the river and nearby wetlands.
The Post Bulletin reports that the seal coating was applied on Wednesday, but hadn't dried by Thursday morning when it started raining.
This caused the sealant to enter storm sewers that flow into Ole Miss Marina, with specialists later called in to skim the sealant off the water.
A statement issued by the City of Red Wing said: "[We] encourage citizens to be aware of what they are sending down their storm sewers. This spill is evidence that storm water drains directly to our waterway without going through the waste treatment facility."