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

Saturday, September 27, 2025 - 10:30am to 1:00pm OR 2:30pm to 5:00pm
Magnolia Blossom Paddle Boat, St. Paul
Wednesday, October 1, 2025 - 5:00pm to 7:00pm
Grey Cloud Dunes Scientific and Natural Area, Cottage Grove
Saturday, October 4, 2025 - 9:00am to 12:00pm
Pine Bend Bluffs Natural Area at the Flint Hills Resources property, Inver Grove Heights

Our River Campaign:
It all starts here

At the heart of this new campaign is the vision of a healthy Mississippi River.