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MPCA's recommended review criteria for wastewater treatment facilities that need to perform system maintenance that requires approval to bypass untreated or partially treated domestic wastewater.
Collaboration and engagement have been keys to progress in the St. Louis River AOC.
3M will use an advanced wastewater treatment system to remove per- and polyfluoroalkyl substances (PFAS) from its Chemical Operations facility in Cottage Grove.
Biosolids that will be applied to land must meet strict regulations and quality standards.
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.
Forms and guidance for local partners submitting surface water data, QA/QC information and progress reports to MPCA.
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.
MPCA seeks public comment on a proposed air permit for the U.S. Steel Keetac mining facility in Keewatin, Minn.
Frequently asked questions about SSTS certification and licensing.
The MPCA has initiated a declaratory judgement action against the owners of the Freeway Landfill and Freeway Dump in Burnsville to protect the drinking water supply for Burnsville and Savage residents.
An inspection in 2024 discovered multiple violations at this site in , including failure to conduct testing of tank systems that prevent leaks and corrosion and a broken gauge used in tank leak detection tests.
The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.
The Minnesota Pollution Control Agency (MPCA) has extended an air quality alert in the orange AQI category for northeast Minnesota through 7 p.m. on Wednesday, Aug. 6.
Helped by an MPCA grant, Coon Rapids increased local options for electric vehicle drivers with two new charging stations at public buildings.
“Urban wood,” or wood salvaged from cities, suburbs, and towns, is a growing issue in Minnesota because of severe weather, urban expansion, and the emerald ash borer. Rather than burning the trees as waste, a preferred option for dealing with urban wood involves creating durable wood products like furniture, building materials, and wooden décor.
Protecting and restoring water quality is one of the MPCA's core areas of focus.
The MPCA closed 118 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2023.
Testing found elevated levels of tetrachloroethylene/perchloroethylene (PCE or Perc) in soil vapors around the Dison’s Cleaners and Launderers site in Rochester.
Elevated levels of tetrachloroethylene and trichloroethylene have been found in soil vapor around this site in St. Paul.
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.