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The kind of permit a facility needs depends on how much air pollution the facility could emit based on its equipment or processes.
Removing of an old dam and restoring a creek's curves are improving habitat and water quality in the Pomme de Terre River Watershed.
Best practices for SSTS installations drafted by St. Louis County, Minn., in 2008 based on the experiences of SSTS installers and inspectors.
Frequently asked questions about SSTS certification and licensing.
The Leech Lake Band of Ojibwe has hosted five MN GreenCorps members to help install solar panels and electric vehicle charges, promote food sovereignty, and more.
Pig’s Eye Dump in Saint Paul has been slated for cleanup and restoration.
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.
When people think of sources of air pollution, they typically think about buildings with big smokestacks like power plants and factories. Only about a quarter of the air pollution in Minnesota comes…
MPCA studies shows 75% of Minnesota lakes meet standards for recreation. Clean Water Fund dollars help answer water quality questions.
Our climate has already changed and will continue to change. Minnesotans are feeling impacts of climate change, from higher temperatures, more extreme storms with intense flooding, and changes in our…
Determine what type(s) of water quality permit is required at facilities that mine construction sand and gravel; industrial sand; quarry limestone, granite or dimension stone; operate hot mix asphalt production areas; produce concrete block, brick and other products; and/or produce ready-mix concrete.
The Minnesota Nutrient Reduction Strategy (NRS) compiles the latest science, research, and data and recommends the most effective strategies to reduce nutrients in our waters from both point and nonpoint sources.
Solid waste facilities may close or terminate their permit depending on the solid waste activities occurring at the site.
The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.
Environmental information and permits that affect wood-finishing industries.
Environmental information for craft breweries, distilleries, wineries, and cideries, and for home brewers who want to start commercial production.
Reducing campus discards and raising awareness of sustainability through outreach and community engagement
The East Fork Des Moines River Watershed covers 839,518 acres, which includes Minnesota's Martin and Jackson counties.
Answers to common questions about the Construction Stormwater Permit application
Through a certificate of need process, MPCA is offering existing landfills the opportunity to expand their existing capacity.