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Systems to treat drinking water have been installed to address groundwater contamination in two St. Louis Park and three Edina municipal wells.

The MPCA is collaborating with many federal, Tribal, state, and local partners to clean up contaminated sites in the Duluth harbor and St. Louis River.

Minnesota state agencies and local governments are working together to protect drinking water supplies.

The MPCA has released the draft 2025 Minnesota Nutrient Reduction Strategy for public review and comment.

MPCA collects information about the sale and use of greenhouse gases with high global warming potential.

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

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for north and central Minnesota. The alert runs until 11 p.m. on Wednesday, July 30. Fine particle levels are expected to reach the red air quality index (AQI) category, a level considered unhealthy for everyone, across north central, northwest, northeast, and east central Minnesota, and the orange AQI category, a level considered unhealthy for sensitive groups, across central, east central, west central, north central, and northwest Minnesota.

Minnesotans are encouraged to share feedback through Nov. 9, 2025

The U.S. EPA approved Minnesota's Statewide Mercury Total Maximum Daily Load study in March 2007.

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.

MPCA plans to amend existing Minnesota Rules governing permits and solid waste landfills (chapters 7001 and 7035).

This long-term data gathering initiative helps track trends in water bodies around the state. The MPCA is grateful for every volunteer who has dedicated time to monitoring their favorite lake or stream.

MPCA staff studied the river during this summer's extreme drought conditions to see if tighter limits on phosphorus are protecting aquatic life.

Recycling market development works to expand end markets and boost the demand for recycled materials.

The purpose of the Minnesota Pollution Control Agency's official social media accounts is to provide information about the MPCA and the programs, services, and products we provide. The MPCA social…

The MPCA has actively been developing methods and building capacity to improve our ability to monitor and assess wetlands to protect and restore them.

Every Minnesotan — regardless of income, race, ethnicity, color, or national origin — has the right to healthy air, sustainable lands, clean water, and a better climate.

Ready-to-run meteorological data suitable for AERMOD.

Addressing excess nutrient levels in Lake Pepin based on the site-specific water quality eutrophication criteria for the lake developed by the MPCA.

Some Minnesota companies are helping expand the use of recycled materials in the state, thanks to market development grants from the MPCA.