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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.…
An August 2023 MPCA inspection confirmed failures to conduct weekly inspections and train staff to properly handle and store hazardous waste at its residential and commercial cabinet production facility in St. Cloud.
Heartland Corn Products failed emission stack tests in November 2021 and February 2022 for volatile organic compounds and particulates at its ethanol production facility in Winthrop, Minn.
Partnerships and diversified funding drive the work to restore water quality in impaired streams in the Red Lake River Watershed through science-based interventions.
Minnesota rivers are shrinking in the drought; some have their lowest flows in decades. What will be the long term effects?
Collaboration and engagement have been keys to progress in the St. Louis River AOC.
This watershed is located in the southeastern tip of Minnesota, known for its scenic bluffs. More than 900,000 acres drain to the Mississippi River at Reno, Minn., but only 117,000 of those acres are in Minnesota.
It's Septic Smart Week and Minnesota local governments are reporting significant progress in fixing inadequate septic systems around the state.
The city of Duluth will pay a $12,000 fine and spend $190,000 in compensation for a 2024 incident that led to a fish kill in Tischer Creek.
The MPCA proposes to adopt the U.S. EPA's 2013 national recommended water quality criteria for ammonia as its Class 2 ammonia water quality standards for the protection of aquatic life.
Nearly all feedlot owners are required to register with the state and update their registration information every four years, unless they have applied for a permit recently. This page includes information about how to register.
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.
Image Although Minnesota is rich in lakes and streams, Lake Superior is easily the most spectacular waterbody in Minnesota. Despite its immense size…
Privacy rightsSeveral federal and state laws protect your privacy rights regarding the information the MPCA has about you. At times, an MPCA staff member may ask you to provide information about…
Industrial Finishing Inc. violated several water quality permit conditions relating to required sampling, training, reporting and inspections at its industrial equipment coating and finishing facility in Deer Creek, Minn.
East Side Jersey Dairy Inc., doing business as Prairie Farms Dairy Inc., had several liquid sugar spills they failed to report to the Minnesota Duty Officer in 2022 and 2023. The spills created a potential for harm to the environment and aquatic life had they reached wetlands near the company’s facility in Woodbury, Minnesota.
In 2009, a federal court ruled that NPDES permits were required for all biological and chemical pesticide applications that leave a residue in water when applications are made in, over, or near waters of the United States.
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.
The MPCA works with industry, government, and residents to reduce and manage waste.
Permitted waste facilities, waste utilization projects, and waste haulers in Minnesota must submit regular reports to the MPCA.