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The MPCA works with city and county governments, watershed districts, consultants, and others on monitoring, protecting, and restoring water quality. This is a repository of guidance and technical resources for agency partners.
The Minnesota Pollution Control Agency has issued an air quality alert for west central, north central, northwest, and central Minnesota. The alert takes effect at 6 a.m. on Saturday, May 31 and runs until 6 p.m. on Sunday, June 1. Air quality is expected to reach the red AQI category which is unhealthy for everyone.
Permit addresses the most common causes of contaminated groundwater, including releases of petroleum, volatile organic compounds, and other hazardous substances.
The MPCA enforces federal and state requirements for air quality permitting.
The Duluth Urban Area Watershed is a focused geographic area designed to recognize the complexity and challenges in an urban center with a water-rich environment. It is defined by a series of small watersheds that are portions of three major watersheds.
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 MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
MPCA has developed a draft wastewater permit for the MagIron LLC facility near Grand Rapids, Minn. The facility will process former natural iron ore mining waste material into high-grade, low-impurity iron ore concentrate at the site and supply electric arc furnace steelmaking.
A TMDL to address E. coli aquatic recreation impairments in five main-stem reaches of the Minnesota River.
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.
The South Fork Crow River Watershed covers 818,428 acres. It is located in south-central Minnesota and encompasses parts of Kandiyohi, Renville, Meeker, McLeod, Sibley, Wright, Carver, and Hennepin counties.
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.
A successful cleanup of contaminated land along the Cedar River in Austin caps a long history of industrial pollution.
Find out what’s being done in Minnesota’s watersheds to protect and improve water quality.
In Minnesota, handlers of oil and hazardous substances are required to prepare for potential spills and take steps to prevent them.
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
The MPCA plans to amend water quality standards (Minn. Rules chapter 7050) affecting Class 2 beneficial uses, which protect surface waters for aquatic life and recreation.
ECSWC is applying for a 10-year permit to add MSW capacity to its currently permitted landfill near Mora while conducting environmental review for the unpermitted areas of its landfill expansion.
The Lake Superior - South Watershed covers 402,371 acres.
Pesticide NPDES Permit Steps to Compliance Step 2: submit a notice of intent