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A new planning effort in northwest Minnesota takes a basin-wide approach to reducing the state's phosphorous contributions to the Red River, and to Canada's Lake Winnipeg.
The Minnesota Pollution Control Agency (MPCA) today announced a new initiative to monitor water quality throughout the entire Mississippi River within Minnesota’s borders for the first time in a single year.
This year’s forum will focus on ways to reduce nitrogen in Minnesota’s water, and ways that agricultural and urban partners are working together to improve water quality.
One indicator of impairment that puts a stream on the Impaired Waters List is its macroinvertebrate population. Here's how that works.
From the days when raw sewage flowed into rivers and lakes, Minnesota’s water bodies have come a long way. However, there is still work to be done in the restoration and protection of our waters.
This committee included a broad range of stakeholders and was charged with providing perspective, input, and advice to the commissioner on MPCA's water fees.
The Mississippi River - La Crescent Watershed drains 95 square miles in Houston and southeast Winona counties, an area defined by wooded bluffs and spring-fed cold-water streams that flow directly to the Mississippi River.
Guidance and recommendations for local officials dealing with public health issues related to blue-green algae.
The MPCA has important roles in protecting and restoring waters in degraded conditions.
Excess nitrate remains a long-term challenge to manage. In our lakes, rivers, and streams, it is toxic to fish and other aquatic life. In drinking water, it can pose a risk to human health,…
What is the blue-green scum that looks like spilled paint?In lakes that are over-enriched with phosphorus and nitrogen, algae tend to prosper and create algae blooms. Blue-green algae and one type in…
Water scientists from the MPCA published four watershed reports in 2025, updating the data we need to keep Minnesota’s waters clean and protected.
Chloride is a problem for wastewater facilities and stormwater permittees.
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.
Waterways in the northeastern part of the state are generally in better condition than those in the southern, central, and western regions.
Forms and guidance for local partners submitting surface water data, QA/QC information and progress reports to MPCA.
Minnesota water infrastructure projects in St. Cloud and Pipestone garner EPA’s top awards for innovation, excellence in protecting environment, health.
State agencies, counties, municipalities, nonprofit organizations, and many others are engaged in protecting Minnesota lakes.
The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
Sandy and Jay Boss Febbo shared their story as part of We Are Water MN, a traveling exhibit and community engagement program that explores Minnesotans’ relationships with water.