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The Upper/Lower Red Lake Watershed covers more than 1.2 million acres and is home to Upper and Lower Red Lakes, the two largest bodies of water within the state.
To ensure that every person in Minnesota has healthy air to breathe, the MPCA studies, monitors, and regulates air pollutants, primarily in three categories: criteria pollutants, air toxics, and greenhouse gases.
MPCA permits are required to both build and operate landfills in Minnesota.
MPCA rules govern the collection, transportation, storage, processing, and land application of animal manure and other livestock operation wastes.
In karst landscapes, the distinction between groundwater and surface water is blurry.
The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.
Investments in electric vehicle charging stations around Minnesota.
Certain types of permits and approvals to conduct solid waste activities require a notification to the MPCA of the intent to perform the specified solid waste activity.
The TMDL is based on 62 impairments for turbidity and total suspended solids along the Minnesota River and its tributaries and in the Greater Blue Earth River basin.
Distribution media include both public domain products like aggregate or drainfield rocks, and proprietary products like expanded polystyrene aggregate and chambers.
Septic system owners are responsible for system maintenance. Properly maintaining a septic system will extend its life.
Minnesota rules identify 16 standing beneficial uses for which waste generators or end users can simply follow the applicable rules without contacting the MPCA.
Improving water quality in Lake George has required treating phosphorus in the water and filtering pollutants out of urban stormwater.
Riverview LLP is seeking to expand its existing West River Dairy facility near Morris from 7,855 cows to a total capacity of 18,855 cows.
The Burnsville Sanitary Landfill (BSL) will expand to accommodate the growing municipal waste needs of the Twin Cities metro area. The expansion is part of the landfill’s long-term plan to extend the useful life of the landfill to 2062.
The Minnesota Pollution Control Agency (MPCA)’s draft wastewater permit for the 3M facility at Cottage Grove adds new water quality protections for the Mississippi River and improves accountability through monitoring and reporting requirements. The draft permit is one of the most rigorous in state history and mandates the removal of certain per- and polyfluoroalkyl substances (PFAS) to levels below detection.
Most AST systems that contain liquid capable of polluting the waters of the state are subject to state rules and permits.
The Rapid River watershed covers 573,060 acres in northern Minnesota. Over 79% of the land in the watershed is owned or managed by state entities.
Chloride is a problem for wastewater facilities and stormwater permittees.
Pig’s Eye Dump in Saint Paul has been slated for cleanup and restoration.