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Sediment is composed of loose particles of sand, clay, silt, and other substances. Sediment flows into Minnesota lakes, rivers, and streams via runoff in both urban and rural areas.
Initiatives passed during the 2023 legislative session invest hundreds of millions of dollars to advance Minnesota’s Climate Action Framework.
While hundreds of fish kills occur in Minnesota every year, mostly in lakes and ponds, fish kills on trout streams in southeast Minnesota are much less common.
Smith Foundry has ceased operations at its East Phillips facility after an investigation and settlement with the U.S. EPA that the MPCA supported.
The MPCA is collaborating with many federal, Tribal, state, and local partners to clean up contaminated sites in the Duluth harbor and St. Louis River.
The chemical 1,4-dioxane, a likely carcinogen, was found in private wells near Bunker Lake Blvd. and Crosstown Blvd.
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.
Application fees must be submitted with your permit application. The submittal cover page form will help you add up the points assigned to each type of permit application or request. Multiply the…
Vapor intrusion occurs when chemical vapors migrate from contaminated groundwater through the soil into the basements or foundations of buildings.
Financial assistance for SSTS work is targeted to units of local government.
MPCA policy recommendations for the upcoming legislative session
Two small creeks in the Nemadji River watershed are cleaner, and some fish have returned, after restoration work that the MPCA took part in.
The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.
The Olmsted Soil and Water Conservation District's Soil Health Farm demonstrates how farmers can benefit from practices that also provide resilience to climate change.
Controlling phosphorus is an important part of protecting Minnesota waters.
The MPCA regulates most aspects of livestock management including the location, design, construction, operation, and management of feedlots and manure-handling facilities.
MPCA's compliance and enforcement program tracks how well wastewater treatment facilities are complying with their permits and takes enforcement actions when necessary.
The MPCA is leading multiple initiatives to reduce greenhouse gas emissions from the transportation sector.
A water quality variance is a temporary change in a state's water quality standard for a specific pollutant and its relevant criteria, allowing deviation from meeting a water quality-based effluent limit for a particular discharger.
The MPCA 401 certification fills a unique niche in protecting water quality by applying state water quality standards to projects.