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Systems to treat drinking water have been installed to address groundwater contamination in two St. Louis Park and three Edina municipal wells.

Waterways in the northeastern part of the state are generally in better condition than those in the southern, central, and western regions.

The Mississippi River - St. Cloud Watershed covers 691,200 acres (1,080 square miles) in the south-central part of the Upper Mississippi River Basin. The watershed includes all or parts of the counties of Benton, Meeker, Mille Lacs, Morrison, Sherburne, Stearns, and Wright.

Chrome-plating facility in St. Louis Park is the alleged source of pollution in local lakes.

A TMDL addressing excess bacteria in 22 stream reaches and protection strategies for 29 stream and river reaches in the Upper Mississippi River watershed.

Addressing excess nutrient levels in Lake Pepin based on the site-specific water quality eutrophication criteria for the lake developed by the MPCA.

This feature summarizes findings from four WRAPS reports in 2024: Root River, Mississippi River-St. Cloud, Pomme de Terre River, and Mississippi River-Lake Pepin Tributaries.

After many years of investigation, design work and construction, the Great Lakes Legacy Act remediation projects at these sites near Duluth, Minnesota, are complete.

Hear Josh Krenz's story about protecting water in Minnesota at We Are Water MN, a traveling exhibit and community engagement program that explores Minnesotans’ relationships with water. You can visit the exhibit from March 2 through April 24 at the Sherburne History Center in Becker, Minn.

Removing of an old dam and restoring a creek's curves are improving habitat and water quality in the Pomme de Terre River Watershed.

Protecting and restoring water quality is one of the MPCA's core areas of focus.

Sustained efforts by cities and water management organizations have restored water quality in two Dakota County lakes.

One of 12 major watersheds of the Minnesota River Basin, the Watonwan River Watershed covers 878 square miles in south-central Minnesota.

For related studies and Technical Advisory Team meeting notes, visit this document sharing site.

State Superfund sites are listed on the Minnesota Permanent List of Priorities (PLP) primarily in order to access funding when responsible parties are unwilling or unable to conduct the necessary site investigation and cleanup.

A stormwater system upgrade in Duluth was expanded with the help of an MPCA employee who tapped into available funding. It protects Lake Superior and can serve as an example for other cities and counties.

The Lake Superior - South Watershed covers 402,371 acres.

The Snake River Watershed is located north of the Twin Cities in the St. Croix River Basin and encompasses 1,006 square miles in five counties: Aitkin, Kanabec, Mille Lacs, Pine, and Isanti.

Water scientists from the MPCA published four watershed reports in 2025, updating the data we need to keep Minnesota’s waters clean and protected.

Before Laura Mendoza Romero got involved with shoreline restoration, she remembers going on boat rides and seeing all the different landscapes along the shore. Some houses you could barely see…