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The MPCA is investigating the source of the chemical 1,4-dioxane in private wells in Gem Lake.

The MPCA provides educational information about the status of Minnesota’s air, water, land, and climate and can point you toward beneficial actions you can take as students, teachers, and life-long learners interested in Minnesota’s sustainable future.

The Zumbro River Watershed covers more than 900,000 acres and reaches parts of six counties in southeast Minnesota (Olmsted, Dodge, Steele, Rice, Goodhue, and Wabasha). Rochester, one of Minnesota's largest cities, is located in the southeast quadrant of the watershed.

MPCA guidance on petroleum site investigation and remediation, reporting, and more.

The Redeye River Watershed covers nearly 900 square miles and is located the northwestern to north-central part of the Upper Mississippi River Basin in central Minnesota. The watershed encompasses all or parts of Becker, Otter Tail, Todd, and Wadena counties.

To protect human health and the environment, we need to limit the amount of per- and polyfluoroalkyl substances (PFAS) in our waters to safe levels. Safe levels means water can be used for drinking,…

The MPCA announced cleanup plans for the defunct Hibbing Gas Manufacturing Plant site, explained in a draft Minnesota Decision Document that is available for public comment until July 9, 2026.

The MPCA has a mobile air monitoring program that allows the agency to respond faster to community air quality concerns across the state. The mobile air monitor collects data in areas where permanent…

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.

The Keep It Clean campaign, a 2023 Minnesota law, and many partners working together are adding up to less garbage and waste left behind on frozen lakes.

The Blue Earth River begins in northern Iowa and meets with the West Branch Blue Earth River in Faribault County. The watershed includes parts of eight counties in southern Minnesota and four in northern Iowa.

Permits for wastewater treatment require monthly, quarterly, or annual reporting of discharge monitoring results

Air quality is expected to reach the orange AQI category, which is unhealthy for sensitive groups, in the Twin Cities and central Minnesota

The MPCA strives to ensure all people in Minnesota have clean air, regardless of where they live or work.

A project to address high levels of suspended sediment in the Minnesota River and the South Metro portion of the Mississippi River.

In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.

MPCA releases initial environmental assessment worksheet for a new municipal solid waste landfill proposed by Dem-Con at its environmental campus near Shakopee.

Minnesota samples a network of shallow monitoring wells designed to provide early detection of contamination in the groundwater.

Eight cities will receive grants to create plans that will protect homes and businesses from flooding and other climate impacts

Removing Middle Lake from the impaired waters list required wrangling with a bottom feeder, the invasive carp.