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A TMDL addressing excess bacteria in 22 stream reaches and protection strategies for 29 stream and river reaches in the Upper Mississippi River watershed.
The MPCA is working to address environmental concerns at the closed Freeway Landfill, to prevent the buried waste from affecting drinking water and the nearby Minnesota River.
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
First of a series of MPCA staff profiles. Kevin Stroom conducts research on streams and has published a report about Straight River.
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.
Many residents have questions and concerns about loud noises or unpleasant odors that may be associated with industries or businesses in their community.
Four watershed scientists had an article published in LakeLine magazine. They report on 20 years of success getting lakes cleaned up.
The Blue Earth River begins in northern Iowa and meets with the West Branch Blue Earth River in Faribault County. The watershed includes parts of eight counties in southern Minnesota and four in northern Iowa.
The discharges in summer 2024 happened during the construction of the MnDOT truck facility in Eden Prairie, Minnesota.
While hundreds of fish kills occur in Minnesota every year, mostly in lakes and ponds, fish kills on trout streams in southeast Minnesota are much less common.
Question and answer session with Lisa Weidemann, a community affairs specialist with the MPCA, about her work with the agency.
Certain proposed projects — based on their nature, size, location, or other factors — must go through an environmental review before any required permits or approvals are issued.
MPCA completed 100 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the first half of 2024
Countless bacteria can be found in land, water, humans, and animals. Most bacteria are beneficial, serving as food for larger organisms and playing critical roles in natural processes such as organic…
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.
Minnesota has a growing salty water problem that threatens its freshwater fish and other aquatic life. Chloride from both de-icing salt and water softener salt gets into lakes and streams, and…
The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.
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.…
James Wooton puts his scuba diving skills to work monitoring for aquatic invasive species in Otter Tail County lakes.
When temperatures climb and the summer sun beats down, conditions are ripe for Minnesota lakes to produce harmful algae blooms, some of which can be harmful to pets and humans.