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Community wastewater treatment facilities and their operators play a critical role in maintaining a health community and preserving and protecting our waters.

Information about the work to clean up the pollution from over 100 years of unregulated development and industrial practices.

Requirements for discharges from a project site and/or management control site(s).

State government agencies, in collaboration with local partners, are leading trailblazing work to protect Minnesotans from per- and polyfluoroalkyl substances (PFAS) pollution.

Unauthorized releases of untreated wastewater in October 2024 and January and February 2025, as well as failure to notify the Minnesota Duty Officer in a timely manner.

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

Roundup of key environmental justice laws passed by the Legislature in 2023

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.

Minnesota rules require many facilities that produce air emissions to conduct performance testing.

Governor Walz appointed Katrina Kessler as MPCA commissioner effective November 1. Kessler has been serving as an assistant commissioner.

The MPCA had at least $1 million to support projects that will build lasting capacity to preserve standing tree stock and manage increasing volumes of wood waste.

Water scientists from the MPCA published four watershed reports in 2025, updating the data we need to keep Minnesota’s waters clean and protected.

MPCA investigation found that Rainy Lake Oil failed to repair a pipe that was leaking diesel fuel underground for more than four months in 2024.

Apply for the 2025-2026 Minnesota GreenCorps program and spend a year working on environmental issues and making a difference in communities around the state.

Resources for the dry cleaning industry

Groundwater and drinking water in the east Twin Cities metro area is contaminated with PFAS due to 3M's disposal practices at four sites in the area.

Tools to help small businesses determine if they need an air emissions permit and/or track compliance with their current air emissions permit.

Information will support the phase out of nonessential use of “forever chemicals” in Minnesota

Chloride is a problem for wastewater facilities and stormwater permittees.

Help your school get a recycling program organized and operating successfully.