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Minnesota is the first state government in U.S. to use this combination of innovative technologies to address "forever chemicals”
James Wooton puts his scuba diving skills to work monitoring for aquatic invasive species in Otter Tail County lakes.
The Lower Minnesota River Watershed includes the lowest reach of the Minnesota River and flows into the Mississippi at Fort Snelling. The second-largest watershed in the Minnesota River Basin, it covers 1,760 square miles, divided by the Minnesota River itself.
The Minnesota Pollution Control Agency (MPCA) today announced a new initiative to monitor water quality throughout the entire Mississippi River within Minnesota’s borders for the first time in a single year.
In rules, an incorporation by reference states that the contents of another document are part of the rule, even though the text of the referenced document does not appear in the rule itself.
From January through March 2025, MPCA air monitoring data showed elevated lead levels that exceeded national ambient air quality standards near the facility. An MPCA inspection of Gopher Resource in spring 2025 confirmed that the source of the elevated lead levels was addressed.
Two small creeks in the Nemadji River watershed are cleaner, and some fish have returned, after restoration work that the MPCA took part in.
The St. Louis River Mercury TMDL will determine mercury reductions needed for lakes and rivers in the St. Louis River watershed.
The Army has proposed a plan for cleaning up contaminated sediment in Round Lake, located within the Twin Cities Army Ammunition Plant (TCAAP) site.
Profile of John Weiss, a volunteer with the MPCA's Volunteer Water Monitoring Program
Volunteer water monitors collect valuable data used by agencies and organizations across the state to protect and manage Minnesota’s waters.
The Big Fork River Watershed covers more than 1.3 million acres that include some of the state’s most pristine wilderness. The river flows north 165 miles from Dora Lake (45 miles northeast of Bemidji in north-central Itasca County) to the Rainy River, which forms the Minnesota-Canada border.
The Otter Tail River Watershed encompasses three different ecoregions, covering more than 1.2 million acres in west-central Minnesota.
The Buffalo River Watershed covers more than 1,100 square miles in portions of Becker, Clay, Otter Tail, and Wilkin counties, with a small portion of its headwaters in the White Earth Reservation.
The Thief River begins its course in Marshall County at Thief Lake, flowing south/southwest to converge with the Red Lake River.
The Shell Rock River begins at Albert Lea Lake in Freeborn County in south-central Minnesota, a few miles from the Iowa border. It flows 113 miles into Iowa, where it enters the Cedar River. In Minnesota, the Shell Rock drains 246 square miles (160,000 acres), all in Freeborn County.
Across the state, water softeners contribute significantly to chloride pollution. Here’s how to make sure your water softener isn’t sending excess salt into the environment
The Lower St. Croix Watershed covers 585,735 acres and is located in northwest Wisconsin and east-central Minnesota.
Minnesota water infrastructure projects in St. Cloud and Pipestone garner EPA’s top awards for innovation, excellence in protecting environment, health.
Chrome-plating facility in St. Louis Park is the alleged source of pollution in local lakes.