More 3M chemicals found in Mississippi River — New fish advisories issued

Additional testing has discovered high concentrations of perfluorochemicals, or PFCs, in the Mississippi River and in landfills near the river. These findings come shortly after the Minnesota Department of Health (MDH) report released in January that found one of the chemicals in drinking water supplies in Saint Paul Park, Newport, Woodbury, South Saint Paul, Cottage Grove and Hastings. As a result of these findings, the MDH has issued new Health Advisories for fish consumption for parts of the Mississippi River.

Media coverage

Minnesota Public Radios extensive coverage of this issue

News release from the Minnesota Department of Health regarding the new advisories on fish consumption

Star Tribune: Senate wants closer look at chemical risks (free registration required)

Upcoming Events

Thursday, May 14, 2026 - 6:00pm to 8:00pm
Near Broadway bridge, North Minneapolis
Saturday, May 16, 2026 - 10:00am to 12:00pm
Along a Mississippi River backchannel, Otsego
Wednesday, May 20, 2026 - 6:00pm to 8:00pm
Nicollet Island, Minneapolis

Join us for Music for the Mississippi River 

Celebrate the Mississippi River and support FMR with Tina Schlieske and Molly Maher, May 30 at Dual Citizen Brewing in St. Paul.