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Minnesota has revised state water quality standards to incorporate a tiered aquatic life use (TALU) framework for rivers and streams.
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.
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?
Minnesota is the first state government in U.S. to use this combination of innovative technologies to address "forever chemicals”
Elevated levels of tetrachloroethylene and trichloroethylene have been found in soil vapor around this site in St. Paul.
Certain proposed projects — based on their nature, size, location, or other factors — must go through an environmental review before any required permits or approvals are issued.
Cleanup and recovery from a natural disaster depends on local units of government to guide and direct residents to ensure the effective and efficient disposal of wastes in accordance with statutes, rules, and guidelines.
Profile of John Weiss, a volunteer with the MPCA's Volunteer Water Monitoring Program
The MPCA provides climate change technical assistance to Minnesotan, including one-on-one consultation or small group facilitation, to assess current capacity, build on strengths, and address underlying needs.
All facilities with air permits must submit an annual emissions inventory report to the MPCA that tracks actual emissions of major pollutants at that facility.
Recyclers of CED must register with the MPCA; there is no annual fee. Recyclers must meet certain requirements in terms of regulatory compliance, necessary licensure, and insurance.
New MPCA report monitors PFAS sources and movement, provides direction for preventing and managing PFAS pollution.
Minnesotans are encouraged to share feedback through Nov. 9, 2025
Environmental rules and regulations are essential tools used to protect Minnesota’s environment, setting standards for environmental quality and limits on pollutants that can be discharged from facilities. The MPCA helps protect our environment by writing and enforcing these rules and regulations.
To obtain coverage under this permit, the owner(s) must document compliance with the criteria for coverage under this general permit, prior to disposal of the uncontaminated concrete.
New reports from the MPCA highlight restoration investments and improved water quality while calling for continued work to address persistent challenges in southeastern Minnesota.
MPCA is planning new rules governing how the MPCA determines currently unavoidable uses of per- and polyfluoroalkyl substances (PFAS) in products.
Chemicals in the air toxics emission inventory.
The MPCA has developed guidance on a number of topics to assist real estate developers, environmental engineers, remediation consultants, and others in addressing brownfields and contaminated sites.
The MPCA proposes to adopt the U.S. EPA's 2013 national recommended water quality criteria for ammonia as its Class 2 ammonia water quality standards for the protection of aquatic life.