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The MPCA works with city and county governments, watershed districts, consultants, and others on monitoring, protecting, and restoring water quality. This is a repository of guidance and technical resources for agency partners.
Under the federal Clean Water Act, states must designate beneficial uses for all waters and develop water quality standards to protect each use.
State agencies, counties, municipalities, nonprofit organizations, and many others are engaged in protecting Minnesota lakes.
Environmental information and resources for the aggregate industry.
With the end of the 2025 model year in the automobile industry, so ends Minnesota's Clean Cars rule. The Clean Cars rule, adopted in 2020, had a goal of electric vehicles exceeding 6% of all…
The MPCA has developed best practices for vapor intrusion mitigation and public communication work used by the agencies and our contractors.
U.S. Steel Corp. operates a taconite mine and processing plant known as Keetac north of Keewatin, where it produces taconite pellets for use at iron and steel mills.
Environmental information and permits that affect businesses using boilers.
The Meadows Mobile Home Park discharged untreated sewage to the ground in two separate violations in 2025.
Carba, a Minnesota-based company focused on carbon-capture technology, took home the MPCA’s Green and Sustainable Chemistry Prize at the 2023 MN Cup
Inadequate stormwater protections at a Saint Paul project have netted fines for the Minnesota Department of Transportation (MnDOT) and Bituminous Roadways.
An air emissions risk analysis estimates the potential human health risks from air pollution emitted by a facility.
Pig’s Eye Dump in Saint Paul has been slated for cleanup and restoration.
Environmental information and permits that affect wood-finishing industries.
The U.S. EPA approved Minnesota's Statewide Mercury Total Maximum Daily Load study in March 2007.
Addressing excess nutrient levels in Lake Pepin based on the site-specific water quality eutrophication criteria for the lake developed by the MPCA.
The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.
Environmental information and permits that affect metal fabrication and finishing businesses.
The Soiled Undies exhibit at the Eco Experience at the Minnesota State Fair might look off-putting at first, but it's a good demonstration of the importance of soil health and how healthy soil can help the environment.
Township and private party fined $47,555 for failing to obtain a construction stormwater permit for road improvements.