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MPCA's recommended review criteria for wastewater treatment facilities that need to perform system maintenance that requires approval to bypass untreated or partially treated domestic wastewater.
Underground storage tank (UST) facilities must designate owners, operators, or employees as Class A, Class B, and Class C operators.
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.
Join the celebration! We look forward to highlighting Minnesota’s clean water successes and invite you to use our 50th anniversary art and branded graphics.
Requirements for discharges from a project site and/or management control site(s).
A stormwater system upgrade in Duluth was expanded with the help of an MPCA employee who tapped into available funding. It protects Lake Superior and can serve as an example for other cities and counties.
The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.
The MPCA provides technical assistance and training to help permitted facilities and regulated communities meet environmental requirements. The agency works cooperatively with permitted facilities to…
Organics recycling reduces greenhouse gas emissions and keeps waste out of landfills. MPCA answers commonly asked questions about how and why to participate in organics recycling programs.
Solid waste facilities may close or terminate their permit depending on the solid waste activities occurring at the site.
What an organization buys, who it buys from, and how it uses the goods and services once bought is a reflection of the organization's values. Sustainable purchasing policies shows a commitment to…
This TMDL addresses 39 stream and river reaches in the Lower Mississippi and Cedar River basins with excess levels of fecal coliform.
Volunteers can search for a lake or stream site that works for them and sign up to monitor it.
The Red River of the North - Sand Hill River Watershed covers 708,469 acres and is part of the Red River Basin in northwestern Minnesota and southeastern North Dakota.
Minnesotans are encouraged to share feedback through Nov. 9, 2025
What's in My Neighborhood provides a wide variety of environmental information about your community. Search for:properties that were previously contaminated and those being investigated for…
Healthy land and soil is essential for thriving Minnesota communities. It drives economic development and opportunity, improves our health, and contributes to clean water for drinking and recreation…
New major-emitting industrial facilities and major modifications of existing facilities must obtain a permit before construction and include the best pollution-control technology available if they significantly increase emissions.
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.
The Air We Breathe report looks at public health and air quality data to gauge how air pollution is affecting our health in Minnesota.