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Pretreatment by commercial facilities and other non-domestic wastewater sources removes harmful pollutants before the wastewater is discharged to a municipal sewer system. The U.S. EPA has delegated MPCA the authority to approve pretreatment programs at the local level and oversee statewide pretreatment activities.
Information about the work to clean up the pollution from over 100 years of unregulated development and industrial practices.
What to consider when cold weather has you looking into home weatherization projects
Findings underscore need to reduce use of “forever chemicals”
Minnesota is a national leader in ensuring healthy air quality. The Clean Air Act requires states to take significant responsibility for preventing and controlling air pollution. States must pass…
The MPCA certifies Minnesota municipal, government, or industrial laboratories that are used to comply with National Pollution Discharge Elimination System (NPDES)/State Disposal System (SDS) permits or for water quality work for agency programs.
Many industrial by-products are good candidates for land application based on their nutrient content.
Learn what steps you can take to reduce the pollution from small neighborhood sources.
PolyMet Mining plans to develop a mine and processing plant to extract copper, nickel, and precious metals.
The MPCA investigates sites where hazardous substances have been or could be released to identify risks and appropriate remediation plans.
Minnesota is a national leader in keeping mercury out of the environment.
The MPCA and its many partners collect a wide variety of data on environmental conditions and pollution sources.
New easy-to-access trainings help small businesses figure out if they are subject to MPCA regulations, and how to become more sustainable.
Application forms and instructions for applying for wastewater permits.
Tools and materials for partners and stakeholders interested in minimizing the impact of chloride on Minnesota lakes, rivers, and groundwater.
Every Minnesotan — regardless of income, race, ethnicity, color, or national origin — has the right to healthy air, sustainable lands, clean water, and a better climate.
Businesses with low levels of actual emissions can submit a simplified permit application and obtain a registration permit, with greater flexibility to make changes as long as they continue to maintain permit requirements.
MPCA's Closed Landfill Program is a voluntary program established in 1994 to properly close, monitor, and maintain Minnesota's closed municipal sanitary landfills.
Many residents have questions and concerns about loud noises or unpleasant odors that may be associated with industries or businesses in their community.
Forms, guidance, and assistance to apply for an air quality permit.