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Lake of the Woods is a big lake with a big problem caused by one of nature’s smallest organisms: algae. Scientists from the MPCA and the Science Museum are working together to understand why.
The MPCA certifies Minnesota municipal, government, or industrial laboratories that are used to comply with National Pollution Discharge Elimination System (NPDES)/State Disposal System (SDS) permits or for water quality work for agency programs.
The MPCA identified a series of policy recommendations for the optimal management of decommissioned solar panels.
To help you quickly determine whether this permit affects you, what your requirements are, and what to do next, the MPCA has developed an Applicability flow chart
Create an editable spreadsheet with the information indicated below. Each step in your calculations needs to be clear and easy to follow.Facility informationProvide the facility ID, file number, and…
The Pine River Watershed is approximately 502,400 acres in size. The watershed drainage for the Pine River contains parts of Aitkin, Cass, Crow Wing and Hubbard counties. Pine River and Crosslake are the major cities in the watershed.
Dem-Con Landfill proposes to build a new municipal solid waste landfill at its environmental campus near Shakopee. It plans to convert 2.2 million cubic yards covering an approximately 81-acre fill area of its permitted construction and demolition landfill into a new municipal solid waste landfill. The creation of a new MSW landfill of this size requires the project to go through the environmental impact statement process.
Located in southeast Minnesota and northeast Iowa, the Upper Wapsipinicon Watershed lies within the Eastern Iowa and Minnesota Drift Plains portion of the Western Corn Belt Plains ecoregion.
A series of new culverts in Lake County reconnect brook trout habitat and provide resilience to climate change for area roads.
The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.
The Minnesota River - Headwaters Watershed covers 487,015 acres in the Prairie Parkland ecoregion of southwestern Minnesota. Portions of Traverse, Big Stone, Swift, Lac qui Parle, Stevens, and Chippewa counties drain the watershed.
Most AST systems that contain liquid capable of polluting the waters of the state are subject to state rules and permits.
The Air We Breathe report looks at public health and air quality data to gauge how air pollution is affecting our health in Minnesota.
For Katy Backes Kozhimannil, water is intrinsically tied to her life’s work. As a professor of public health at the University of Minnesota with a focus on rural communities, she has made it her life…
The MPCA issued the most recent municipal stormwater general permit (MNR040000) in November 2020.
Industrial Stormwater Steps to Compliance - Step 3: Facilities requiring permit coverage must assess for pollutants at the facility
The St. Louis River Watershed covers 3,584 square miles at the head of the Great Lakes and represents the extreme headwaters of the St. Lawrence River.
Details on Minnesota state contracts with businesses that provide environmental emergency response services.
The small business ombudsman is an independent entity responsible for reviewing environmental regulatory activities to ensure that they are fair, reasonable and appropriate for Minnesota's small businesses that have to comply with environmental regulations.
Minnesota is a national leader in ensuring healthy air quality. The Clean Air Act requires states to take significant responsibility for preventing and controlling air pollution. States must pass…