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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.

Find out what’s being done in Minnesota’s watersheds to protect and improve water quality.

MPCA and the Minnesota Department of Health continue to sample private residential wells, municipal wells, and non-community public wells (e.g., small businesses, churches, schools) in the East Metro area for per- and polyfluoroalkyl substances (PFAS)

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.

Groundwater is not a static thing, but moves around in the layers of rock and soil beneath our feet. How does this affect the work to treat contaminated groundwater and protect drinking water?

BALMM emphasizes land use practices to improve or protect water quality, particularly in the areas of watershed management, aquifer protection and floodplain management.

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.

In rules, an incorporation by reference states that the contents of another document are part of the rule, even though the text of the referenced document does not appear in the rule itself.

MPCA staff studied the river during this summer's extreme drought conditions to see if tighter limits on phosphorus are protecting aquatic life.

The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.

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.

This Winnebago River consists of a stream and lake system in southern Minnesota that flows into Iowa. The water resources here face several water quality challenges, including high nutrient and bacteria levels.

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.