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Environmental information and permits that affect businesses that paint, coat, or strip surfaces.
For more than 50 years, volunteers have gathered critically important water clarity data on Minnesota lakes and streams.
The Minnesota Pollution Control Agency (MPCA) will host a public meeting to present information and hear comments on the environmental assessment worksheet (EAW) and feedlot permit for a proposed…
The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for north and central Minnesota. The alert runs until 11 p.m. on Wednesday, July 30. Fine particle levels are expected to reach the red air quality index (AQI) category, a level considered unhealthy for everyone, across north central, northwest, northeast, and east central Minnesota, and the orange AQI category, a level considered unhealthy for sensitive groups, across central, east central, west central, north central, and northwest Minnesota.
Minnesotans are encouraged to share feedback through Nov. 9, 2025
The MPCA enforces federal and state requirements for air quality permitting.
The northeast region of Minnesota is home to the state’s metallic mining industry. The "Iron Range" has a history of iron ore (“ferrous”) mining dating back to the late 1800s and includes the large…
The MPCA today released its environmental assessment worksheet (EAW) for a new facility proposed by Vanguard Organics, LLC that will process organic materials through anaerobic digesters near Litchfield.
Testing found elevated levels of tetrachloroethylene/perchloroethylene (PCE or Perc) in soil vapors around the Dison’s Cleaners and Launderers site in Rochester.
The health of Minnesota's large rivers is a reflection of how well we are protecting overall water quality.
To best serve the needs of all Minnesotans for healthy air, sustainable lands, clean water, and a better climate, the MPCA has committed to building a diverse, equitable, and inclusive workforce that…
The MPCA is leading multiple initiatives to reduce greenhouse gas emissions from the transportation sector.
401 Certification process for applying Minnesota water quality standards to federal permitting actions.
A watershed is the area of land where all of the water that drains off of it goes into the same place — a river, stream or lake.
Enbridge Energy is continuing restoration work around its new Line 3 crude oil pipeline across Minnesota. The new line replaces an aging Line 3 and began operating in October 2021, after Enbridge completed the project’s construction phase.
Nitrogen management plans help operators of wastewater treatment facilities understand the inputs of nitrogen to their facilities and evaluate options that can reduce the amount of nitrogen discharged.
Minnesota continues to reduce industrial and transportation air pollutants that have the highest potential health risks. Investment in clean air for all Minnesotans is a top priority for the MPCA and Governor Walz.
Lake of the Woods is a big lake with a big problem caused by one of nature’s smallest organisms: algae. Scientists from the MPCA and the Science Museum are working together to understand why.
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.
Facilities that have site-specific state implementation plan (SIP) requirements may make changes to their operations that require changes to either their Administrative Order or Title I SIP…