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New reports from the MPCA highlight restoration investments and improved water quality while calling for continued work to address persistent challenges in southeastern Minnesota.

The MPCA has a variety of educational displays, programs, and materials about chloride pollution. We encourage our partners to utilize these resources to engage with their community.

Allows new and expanding wastewater treatment facilities to receive a discharge permit prior to completion of an applicable phosphorus-related TMDL. Through pre-TMDL phosphorus trading a, a new or expanding facility may increase its phosphorus discharge by purchasing a phosphorus reduction from another source.

Thanks to years of restoration efforts, the MPCA confirmed the Kabekona River meets water quality standards for recreation and proposed its removal from the 2026 impaired waters list.

The MPCA monitors water quality in rivers and streams is several different ways around the state.

Volunteer-collected data are regularly used in decision-making and conservation efforts. Find a program that excites you and join in.

A project to address excess sediment and turbidity in the Mississippi River, from Fort Snelling at St. Paul to upper Lake Pepin at Red Wing, based on a site-specific standard developed by the MPCA and Wisconsin Department of Natural Resources.

The Minnesota Nutrient Reduction Strategy (NRS) compiles the latest science, research, and data and recommends the most effective strategies to reduce nutrients in our waters from both point and nonpoint sources.

Minnesota’s Continuous Nitrate Sensor Network generates publicly available water quality data on nitrate levels in our surface water.

The MPCA developed the Wastewater Nitrogen Reduction and Implementation Strategy to decrease the wastewater sector’s nitrogen loads for the protection and restoration of bodies of water in and downstream of Minnesota.

The health of Minnesota's large rivers is a reflection of how well we are protecting overall water quality.

Keep It Clean focuses on the growing problem of garbage and human waste left on the ice by anglers and other visitors during ice fishing season.

MPCA evaluates water quality by measuring and monitoring the health of fish, macroinvertebrates, and plants.

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 MPCA sought applications from contractors to partner with auto repair shops, dealerships, tech colleges or other entities to identify and fix high-emitting vehicles.

We Are Water next visits Ortonville and the Big Stone Lake area March 15 through April 21.

Canby Creek now flows into Del Clark Lake and protects Canby from flooding, while providing outdoor recreation and excellent water quality.

To help you quickly determine whether this permit affects you, what your requirements are, and what to do next, the MPCA has developed an Applicability flow chart

The MPCA is collaborating with many federal, Tribal, state, and local partners to clean up contaminated sites in the Duluth harbor and St. Louis River.

The MPCA identified a series of policy recommendations for the optimal management of decommissioned solar panels.