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Image Although Minnesota is rich in lakes and streams, Lake Superior is easily the most spectacular waterbody in Minnesota. Despite its immense size…
Water scientists from the MPCA published four watershed reports in 2025, updating the data we need to keep Minnesota’s waters clean and protected.
Northshore Mining Company has applied for updated wastewater and air quality permits for its Silver Bay taconite processing plant and Mile Post 7 tailings basin.
For more than 50 years, volunteers have gathered critically important water clarity data on Minnesota lakes and streams.
The Clean Water Council was created to advise the Legislature and the Governor on the administration and implementation of the 2006 Clean Water Legacy Act
To help address climate change and protect the health of Minnesotans, the Minnesota Pollution Control Agency adopted Low Emission Vehicle Standards for particulate matter, nitrogen oxides, non-methane organic gases, and greenhouse gases, as well as the Zero Emission Vehicle (ZEV) Standard.
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.
Four watershed scientists had an article published in LakeLine magazine. They report on 20 years of success getting lakes cleaned up.
The Mississippi River - Headwaters Watershed consists of 1.26 million acres (1,961 square miles) and contains the headwaters of the Mississippi River at Lake Itasca in Itasca State Park. The watershed includes parts of Becker, Beltrami, Cass, Clearwater, Hubbard and Itasca counties.
Initial screening information for a contaminant of emerging concern, Perfluorohexane sulfonic acid.
Mercury is a naturally occurring element that is toxic to humans and animals. At room temperature, mercury is a silvery, liquid metal, but it can also evaporate and become airborne. Mercury does not…
Initial screening information for a contaminant of emerging concern, fluoxetine.
Initial screening information for a contaminant of emerging concern, triclocarban.
The MPCA plans to amend Minnesota Rules chapter 7152 on the Minnesota Dry Cleaner Reimbursement Account to ensure consistency and compliance with state statutes and rules by updating the reimbursement rates for consultant and contractor services for environmental response action costs.
The Lower St. Croix Watershed covers 585,735 acres and is located in northwest Wisconsin and east-central Minnesota.
State Superfund sites are listed on the Minnesota Permanent List of Priorities (PLP) primarily in order to access funding when responsible parties are unwilling or unable to conduct the necessary site investigation and cleanup.
If you want to submit a complaint or report a non-emergency environmental incident, use this online complaint form instead.
SSTS staff contact information and areas of responsibility.
Initial screening information for a contaminant of emerging concern, perfluorooctane sulfonate.
As part of the MN Cup competition, MPCA offers a Sustainable Chemistry Prize of $10,000 to technologies and products that were designed using one or more green chemistry principles or that demonstrate safer or more sustainable chemistry than those already on the market.