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The Lake of the Woods lies on the border between the U.S. and Canada; the watershed covers 734,783 acres.
The MPCA added three sites to the state’s priority list of contaminated sites that need further investigation and cleanup under Minnesota’s Superfund law.
Groundwater and drinking water in the east Twin Cities metro area is contaminated with PFAS due to 3M's disposal practices at four sites in the area.
Based on volume, construction and demolition debris presents a big opportunity for reducing waste and its environmental effects.
Forms, guidance, and assistance to apply for an air quality permit.
The MPCA proposes adding 46 new impaired bodies of water and removing 45 impairments from bodies of water from the IWL, the most removals in a two-year cycle since the state began the IWL program in 1992.
The Minnesota Pollution Control Agency has developed a draft air permit for MagIron LLC in Coleraine that will require a fugitive dust control plan to help reduce emissions of particulate matter from roads, storage, stockpiles, and exposed mining areas.
Within the three major watersheds that cover the Twin Cities area, there are 33 smaller watersheds managed by their own watershed district or watershed management organization.
This year’s theme is Advancing Nutrient Trading with Sustainable Farming and Conservation Practices.
Forms and guidance for local partners submitting surface water data, QA/QC information and progress reports to MPCA.
This permit aims to reduce phosphorus discharged by point sources to the Minnesota River Basin. This webpage contains links to the permit and its associated forms and fact sheets.
Minnesotans are encouraged to share feedback through Nov. 9, 2025
U.S. Steel Corp. operates the Minntac Taconite processing facility near the city of Mountain Iron, where it produces taconite pellets that are shipped for use at steel mills. U.S. Steel has applied for a reissued air permit so it can replace existing emissions controls in its pellet plant with cartridge filters.
The Upper Red River of the North Watershed drains an area of 371,689 acres in the Glacial Lake Agassiz Plain, while the extreme southeastern portion of the basin lies in the North Central Hardwoods ecoregion. The Red River begins its course just below Breckenridge, Minn.
The Mustinka River begins its course southwest of Fergus Falls in southwestern Otter Tail County and flows toward the south into Grant County, where it continues through Stony Brook Lake and Lightning Lake.
Important details to help make your e-Service submittal go as smoothly as possible.
MPCA recognized 253 municipal and industrial wastewater treatment plants for outstanding operations in 2023.
The Watershed Pollutant Load Monitoring Network (WPLMN) is a partnership that collects data on water quality and flow in Minnesota.
Thirty TMDLs undertaken in the Mississippi River - Twin Cities Watershed to address excess nutrients, turbidity, bacteria, and more.
Cleveland-Cliffs owns the Minorca Mine northeast of Virginia, Minnesota. The mine’s two taconite mining pits are about one mile southeast of the plant.