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Regular people are pretty good at judging water quality, and new research from the Minnesota Pollution Control Agency (MPCA) proves it.

This long-term data gathering initiative helps track trends in water bodies around the state. The MPCA is grateful for every volunteer who has dedicated time to monitoring their favorite lake or stream.

To commemorate the 2023 fish sampling season, Martha Young enlisted her mother to create a piece of seed art that will go on display at the 2024 Eco Experience

Question and answer session with Lisa Weidemann, a community affairs specialist with the MPCA, about her work with the agency.

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.

The MPCA has important roles in protecting and restoring waters in degraded conditions.

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.

The MPCA added three sites to the state’s priority list of contaminated sites that need further investigation and cleanup under Minnesota’s Superfund law.

The MPCA has adopted amended rules relating to when maintenance of a closed landfill should end.

MPCA Environmental Assistance grant program puts spotlight on mend-it clinics and other reuse and waste reduction efforts.

Some facilities may have air emissions low enough to qualify as "insignificant," and not be required to have an air permit.

Part 70 Reissuance application formsStarting July 1, 2020, Individual permit holders must use MPCA's e-Services to apply for air permit reissuance.Paper reissuance applications will only be accepted…

Complaints of discrimination will be investigated

401 Certification process for applying Minnesota water quality standards to federal permitting actions.

The MPCA proposes adding 46 new impaired bodies of water and removing 45 impairments from bodies of water from the IWL, the most removals in a two-year cycle since the state began the IWL program in 1992.

In 2009, a federal court ruled that NPDES permits were required for all biological and chemical pesticide applications that leave a residue in water when applications are made in, over, or near waters of the United States.

Pesticide NPDES permit steps to compliance Step 4: Report adverse pesticide incidents

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.

In Minnesota, handlers of oil and hazardous substances are required to prepare for potential spills and take steps to prevent them.

The Minnesota Pollution Control Agency is planning amendments to rules governing water quality fees (Minn. R. ch. 7002 and 7083).