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Chloride is a problem for wastewater facilities and stormwater permittees.

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

Water quality trading is a market-based approach to the protection and restoration of surface waters, another tool to be used in conjunction with existing voluntary, regulatory, and financial assistance programs.

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…

In karst landscapes, the distinction between groundwater and surface water is blurry.

Guidance and recommendations for local officials dealing with public health issues related to blue-green algae.

A water quality variance is a temporary change in a state's water quality standard for a specific pollutant and its relevant criteria, allowing deviation from meeting a water quality-based effluent limit for a particular discharger.

To protect human health and the environment, we need to limit the amount of per- and polyfluoroalkyl substances (PFAS) in our waters to safe levels. Safe levels means water can be used for drinking,…

For more than 50 years, volunteers have gathered critically important water clarity data on Minnesota lakes and streams.

MPCA seeks public comment on two draft industrial wastewater permits for U.S. Steel Corp.’s Keetac mining area and tailings basin in Keewatin, Minnesota. These permits will improve protections for wild rice waters and human health.

Wild rice is an important part of the biological community in many Minnesota lakes, streams, and wetlands, and a cultural resource to many, particularly members of the Dakota and Ojibwe Tribal Nations in Minnesota.

State agencies, counties, municipalities, nonprofit organizations, and many others are engaged in protecting Minnesota lakes.

Permits help the MPCA protect the environment.

Standard operating procedures (SOPs) reflect how agency staff and contracted partners complete agency-funded field activities.

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,…

Dakota County is now hosting We Are Water MN, a traveling exhibit and community engagement program that explores Minnesotans’ relationships with water.

Waterways in the northeastern part of the state are generally in better condition than those in the southern, central, and western regions.

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 Clean Water Act established the framework for creating water quality standards and continues to help us protect Minnesota's prized lakes and rivers.

The MPCA provides financial and technical assistance to local government and other water resource managers to address nonpoint-source water pollution.