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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.
The MPCA regulates the design, construction, and operation of treatment facilities for municipal and industrial wastewater in Minnesota.
The Clean Water Act established the framework for creating water quality standards and continues to help us protect Minnesota's prized lakes and rivers.
Before Laura Mendoza Romero got involved with shoreline restoration, she remembers going on boat rides and seeing all the different landscapes along the shore. Some houses you could barely see…
Organics recycling reduces greenhouse gas emissions and keeps waste out of landfills. MPCA answers commonly asked questions about how and why to participate in organics recycling programs.
Spilled mercury, even small quantities in the home, should be cleaned up quickly and properly so that people don't come in contact with it or breathe its vapors.
The MPCA is investigating the source of the chemical 1,4-dioxane in private wells in Gem Lake.
Environmental information and permits that affect businesses using boilers.
The MPCA recognized 236 wastewater facilities for outstanding operations in 2024.
Riverview LLP is seeking to expand its existing West River Dairy facility near Morris from 7,855 cows to a total capacity of 18,855 cows.
The Minnesota Pollution Control Agency (MPCA)’s draft wastewater permit for the 3M facility at Cottage Grove adds new water quality protections for the Mississippi River and improves accountability through monitoring and reporting requirements. The draft permit is one of the most rigorous in state history and mandates the removal of certain per- and polyfluoroalkyl substances (PFAS) to levels below detection.
In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.
From 2023-2025, Northshore Mining released recycled water to the ground seven times and water relating to mining processes four times. Its largest unpermitted release was nearly 400,000 gallons of recycled water. Northshore Mining has documented equipment failure as the reason for the 11 releases.
Companies penalized for improperly releasing polluted stormwater at Xcel Energy’s St. Paul Service Center construction site on the east side of Saint Paul.
Application forms and instructions for applying for wastewater permits.
Environmental information and permits that affect hot mix asphalt plants.
In Minnesota, certain tasks in the design, installation, repair, maintenance, operation, or inspection of septic systems can only be done by certified individuals. Find out what training, experience, and exams are required to fulfill the requirements for certification.
Tools to help small businesses determine if they need an air emissions permit and/or track compliance with their current air emissions permit.
The MPCA is granting $4.4m from VW settlement funds to replace dirty diesel trucks with cleaner drivetrains. Similar previous grants show how the program works.
Important details to help make your e-Service submittal go as smoothly as possible.