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Southeastern Minnesota is characterized by an unusual type of geography called karst, where the distinction between groundwater and surface water is blurry.

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.

Ten TMDL projects undertaken in the Lower St. Croix River Watershed to address nutrient, biota, bacteria, and other impairments.

The MPCA added three bodies of water to the impaired waters list for PFAS contamination. Which are they? How did they get polluted? And how much PFAS does it take to contaminate a body of water?

Clean Water Partnership loans help local units of government fund projects that protect and restore water quality in lakes, streams, and groundwater aquifers.

Permits help the MPCA protect the environment.

Three committees are accountable to and advise the full Clean Water Council. Meetings are scheduled and open to the public.

Minnesota is the first state government in U.S. to use this combination of innovative technologies to address "forever chemicals”

The MPCA uses the EQuIS database to store and manage monitoring data and associated laboratory results from streams, lakes, groundwater, ambient air, soil, sediment, and gas, collected through MPCA programs and partnerships.

Projects to prioritize environmental justice areas

Minnesota is a national leader in keeping mercury out of the environment.

This long-term data gathering initiative helps track trends in water bodies around the state. The MPCA is grateful for every volunteer who has dedicated time to monitoring their favorite lake or stream.

The Rainy River - Headwaters Watershed covers nearly 1.9 million acres, starting in northern Cook and Lake Counties and flowing west/northwesterly into St. Louis County and the Canadian border waters.

The Rapid River watershed covers 573,060 acres in northern Minnesota. Over 79% of the land in the watershed is owned or managed by state entities.

Nitrogen, like phosphorus, is a nutrient that pollutes in state waters, and its concentration in many rivers has been increasing from historic natural levels over time due to human influences.…

The MPCA will analyze varying background sulfate levels across Minnesota, which could inform our implementation of the wild rice sulfate water quality standard.

The AQI was developed to provide a simple, uniform way to report daily air quality conditions.

We Are Water next visits Ely April 24 through June 16.

Guidance and recommendations for local officials dealing with public health issues related to blue-green algae.

Two small creeks in the Nemadji River watershed are cleaner, and some fish have returned, after restoration work that the MPCA took part in.