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The MPCA regulates both underground and aboveground commercial storage tanks above a certain size that hold petroleum or hazardous liquids.

Under the federal Clean Water Act, states must designate beneficial uses for all waters and develop water quality standards to protect each use.

Minnesota industrial stormwater permittees in certain industries to monitor for PFAS in their stormwater runoff or snow.

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for all of Minnesota. The alert runs until 6 p.m. on Monday, June 2. Air quality is expected to reach the red AQI category in northern Minnesota, which is unhealthy for everyone. The rest of the state will reach the orange AQI category, which is unhealthy for sensitive groups.

Find out what’s being done in Minnesota’s watersheds to protect and improve water quality.

Financing is available for public entities in Minnesota to expand or improve stormwater infrastructure.

When people think of sources of air pollution, they typically think about buildings with big smokestacks like power plants and factories. Only about a quarter of the air pollution in Minnesota comes…

Going beyond compliance yields benefits like cost savings, improved health, greater efficiency, marketing advantages, enhanced employee morale, and stronger business resilience.

Testing found elevated levels of tetrachloroethylene/perchloroethylene (PCE or Perc) in soil vapors around the Dison’s Cleaners and Launderers site in Rochester.

Ask the MPCA features questions Minnesotans have asked us, on the issues the agency works on, from waste disposal, water and air quality, and chemicals in products to recycling and reuse,…

MPCA's Closed Landfill Program is a voluntary program established in 1994 to properly close, monitor, and maintain Minnesota's closed municipal sanitary landfills.

MagIron LLC proposes to restart a mining and processing facility near Grand Rapids, which will require new air and industrial wastewater permits from the MPCA.

The MPCA recognized 236 wastewater facilities for outstanding operations in 2024.

The Pomme de Terre River begins cool and clear in Otter Tail County, bordered by wooded hills and grassy meadows. It flows south through several lakes; as the river nears its mouth, it is bordered by eroding banks, becoming increasingly muddy before discharging into the Minnesota River at Marsh Lake.

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

Groundwater and drinking water in the east Twin Cities metro area is contaminated with PFAS due to 3M's disposal practices at four sites in the area.

A legacy of trichloroethylene disposal at the General Mills/Henkel Corp. Superfund Site at 2010 East Hennepin created an area of groundwater contamination that has led to vapors traveling upward through the soil, where it can enter houses and buildings.

Trichloroethylene and perchloroethylene have contaminated groundwater and caused vapor intrusion issues at this site.

Clean Water Fund dollars come from the Clean Water, Land and Legacy Amendment that Minnesotans approved in 2008.

MPCA rules govern the collection, transportation, storage, processing, and land application of animal manure and other livestock operation wastes.