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Study funded by the $850 million settlement that Minnesota reached with 3M in 2018  focused on the area served by the Valley Branch Watershed District’s Project 1007 rainwater conveyance system in the East Metro.

The Rainy River - Rainy Lake Watershed covers 583,791 acres. Open water makes up 75,815 of those acres and wetlands occupy another 84,851 acres. The watershed is 64% in St. Louis County and 36% in Koochiching County. The northern boundary is part of the international border waters with Ontario, Canada.

Initial screening information for a contaminant of emerging concern, triclocarban.

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.

The Mississippi River - St. Cloud Watershed covers 691,200 acres (1,080 square miles) in the south-central part of the Upper Mississippi River Basin. The watershed includes all or parts of the counties of Benton, Meeker, Mille Lacs, Morrison, Sherburne, Stearns, and Wright.

Feedlot nutrient and manure management

The Mississippi River - Twin Cities Watershed is 656,990 acres and lies almost entirely in the North Central Hardwoods Forest ecoregion in the Mississippi River Basin. The watershed contains 1,320 stream miles and 380 lakes. More than 1.8 million people live in this watershed.

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.

The Otter Tail River Watershed encompasses three different ecoregions, covering more than 1.2 million acres in west-central Minnesota.

Finding ways to keep stormwater on land and let it soak into the ground can lessen the negative effects on water quality from stormwater.

The Lower St. Croix Watershed covers 585,735 acres and is located in northwest Wisconsin and east-central Minnesota.

Initial screening information for a contaminant of emerging concern, beta-sitosterol.

Frequently asked questions about SSTS certification and licensing.

The Two Rivers Watershed is part of the Red River Basin in northwestern Minnesota. Two Rivers actually consists of three branches: the North, Middle, and South Branch.

The Soiled Undies exhibit at the Eco Experience at the Minnesota State Fair might look off-putting at first, but it's a good demonstration of the importance of soil health and how healthy soil can help the environment.

The St. Louis River Watershed covers 3,584 square miles at the head of the Great Lakes and represents the extreme headwaters of the St. Lawrence River.

MPCA established a network of long-term biological monitoring stations that represent a variety of stream types in their most natural condition.

To help you quickly determine whether this permit affects you, what your requirements are, and what to do next, the MPCA has developed an Applicability flow chart

Air quality dispersion modeling uses a computer model to estimate air pollution concentrations from regulated facilities and other sources of pollution.

The MPCA is proposing to amend Minnesota Rules governing animal feedlots.