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MPCA municipal wastewater permit staff
From 2023-2025, Northshore Mining released recycled water to the ground seven times and water relating to mining processes four times. Its largest unpermitted release was nearly 400,000 gallons of recycled water. Northshore Mining has documented equipment failure as the reason for the 11 releases.
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.
Under the federal Clean Water Act, states must designate beneficial uses for all waters and develop water quality standards to protect each use.
The TMDL is based on 62 impairments for turbidity and total suspended solids along the Minnesota River and its tributaries and in the Greater Blue Earth River basin.
The Leech Lake River Watershed consists of approximately 854,659 acres (1,335 sq. miles) in the northern part of the Upper Mississippi River Basin. The watershed includes parts of Beltrami, Cass, and Hubbard counties and the Leech Lake Reservation (Leech Lake Band of Chippewa).
Minnesota has a growing salty water problem that threatens its freshwater fish and other aquatic life. Chloride from both de-icing salt and water softener salt gets into lakes and streams, and…
The Otter Tail River Watershed encompasses three different ecoregions, covering more than 1.2 million acres in west-central Minnesota.
Pollutant and runoff maps and data for major watersheds; watershed monitoring and assessment reports.
Eight cities will receive grants to create plans that will protect homes and businesses from flooding and other climate impacts
The Mississippi River - Winona Watershed covers 419,200 acres in the southeast Minnesota counties of Wabasha, Winona, and Olmsted. A majority of the watershed is cropland, with forest and grassland covering large portions as well.
The Red Lake River Watershed, which covers 909,024 acres, is part of the Red River Basin in northwestern Minnesota. The Red Lake River begins its course in Beltrami County at Lower Red Lake.
The Upper Iowa River is a 156-mile-long tributary of the Mississippi River that rises in Mower County in southeastern Minnesota near the Iowa border. It then flows south through three Iowa counties before flowing into the Mississippi. It drains nearly 641,000 acres (1,005 square miles).
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.
The Minnesota Pollution Control Agency (MPCA) today released an environmental assessment worksheet (EAW) for a new facility proposed by Dem-Con that will process organic materials through anaerobic digesters at its environmental campus in Shakopee, Minnesota.
Thirty TMDLs undertaken in the Mississippi River - Twin Cities Watershed to address excess nutrients, turbidity, bacteria, and more.
Elk River Landfill, Inc. proposes a northward expansion of its landfill into Livonia Township.
MPCA seeks public comment on two draft industrial wastewater permits for U.S. Steel Corp.’s Keetac mining area and tailings basin in Keewatin, Minnesota. These permits will improve protections for wild rice waters and human health.
Kathy Wagner, recipient of the 2025 Community Conservationist Award from the Minnesota Pollution Control Agency (MPCA) and Minnesota Association of Soil and Water Conservation Districts (MASWCD), discusses her personal conservation work and local environmental advocacy.
The Lake Superior - North Watershed covers over 1 million acres in the Northern Lakes and Forest ecoregion.