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The Minnesota portion of the Roseau River watershed covers 774,197 acres; an additional 594,560 acres are across the U.S. border in Canada.

Apply for the 2025-2026 Minnesota GreenCorps program and spend a year working on environmental issues and making a difference in communities around the state.

The Rock River watershed covers more than 1 million acres in Rock, Nobles, Pipestone and Murray counties in southwestern Minnesota. It is the largest of the four watersheds in Minnesota that are part of the Missouri River Basin, extending south into Iowa.

Environmental information and resources for the aggregate industry.

Cleanup and recovery from a natural disaster depends on local units of government to guide and direct residents to ensure the effective and efficient disposal of wastes in accordance with statutes, rules, and guidelines.

Details on Minnesota state contracts with businesses that provide environmental emergency response services.

Answers to common questions about the Construction Stormwater Permit application

A legacy of trichloroethylene disposal at the General Mills/Henkel Corp. Superfund Site at 2010 East Hennepin created an area of groundwater contamination that has led to vapors traveling upward through the soil, where it can enter houses and buildings.

The Upper Iowa River is a 156-mile-long tributary of the Mississippi River that rises in Mower County in southeastern Minnesota near the Iowa border. It then flows south through three Iowa counties before flowing into the Mississippi. It drains nearly 641,000 acres (1,005 square miles).

In Minnesota, handlers of oil and hazardous substances are required to prepare for potential spills and take steps to prevent them.

The MPCA regulates waste, recycling, and disposal activities in Minnesota. MPCA permits are required for the design, construction, and operation of solid waste management facilities where storage, collection, transportation, processing or reuse, conversion, or disposal of solid waste occurs.

Construction and demolition projects produce twice the amount of waste of household trash every year. A new MPCA grant aims to reduce that amount by funding innovative building material reuse projects.

The Lower Rainy River Watershed is composed of a conglomeration of tributaries to the Rainy River, from International Falls and west to the Rainy River's pour point at the Lake of the Woods.

Companies penalized for improperly releasing polluted stormwater at Xcel Energy’s St. Paul Service Center construction site on the east side of Saint Paul.

The MPCA completed 75 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2024.

Coal tar-based sealants can no longer be sold or applied legally in Minnesota as of 2014.

The Sauk River Watershed covers 667,200 acres (1,043 square miles) and extends from the Mississippi River near St. Cloud to within 3 miles of Alexandria.

The Minnesota River - Yellow Medicine River Watershed (1.3 million acres) has traditionally been managed as two separate watersheds, the Hawk Creek Watershed to the north of the Minnesota River and the Yellow Medicine River Watershed to the south.

MPCA municipal wastewater permit staff

Learn about environmental regulations that may apply to your business. It is not an exhaustive list, so other regulations may apply.