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Some pollutants attach to suspended particles in the water and subsequently settle out to the bottom sediment. At elevated concentrations, contaminated sediments can contribute to fish…
Industrial Stormwater Steps to Compliance - Step 5: Gather application materials before applying, use the e-Service to apply or modify coverage
The Otter Tail River Watershed encompasses three different ecoregions, covering more than 1.2 million acres in west-central Minnesota.
Prevent costly sewer clogs by keeping grease out of sinks and by not flushing disposable wipes.
Complying with the MS4 general permit
Financing is available for public entities in Minnesota to expand or improve stormwater infrastructure.
The MPCA solicited project proposals to distribute $35 million to communities for projects to prepare local stormwater infrastructure for the impacts of climate change.
Louisiana-Pacific has been fined $15,775 for stormwater and wetland violations according to a Minnesota Pollution Control Agency (MPCA) enforcement investigation. Louisiana-Pacific operates a wood-board manufacturing facility in Two Harbors, Minnesota.
Excess phosphorus is harming Minnesota waters. Phosphorus comes from both regulated and non-regulated sources. A quarter of Minnesota lakes have high levels of phosphorus, which means that they do…
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
Disposing of wastes from a natural disaster or large fire
Coal tar-based sealants can no longer be sold or applied legally in Minnesota as of 2014.
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.
Finding ways to keep stormwater on land and let it soak into the ground can lessen the negative effects on water quality from stormwater.
Resources and guidance for TMDL projects in Minnesota.
Salt is commonly over-applied, sending too much chloride into our waterways and wreaking havoc on fish and other wildlife.
Sanimax USA LLC failed to seek a required major air permit amendment and conduct air emissions modeling prior to making changes to its pollution control equipment systems in 2019 at its animal products rendering facility in South St. Paul, Minnesota.
Spilled mercury, even small quantities in the home, should be cleaned up quickly and properly so that people don't come in contact with it or breathe its vapors.
Resources for wastewater clients.
The Keep It Clean campaign, a 2023 Minnesota law, and many partners working together are adding up to less garbage and waste left behind on frozen lakes.