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Recent air permits issued by the MPCA can be found in What's in My Neighborhood. The tool does not currently include all previously issued air emissions permits. All air emissions permits issued by…
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.
Planned amendments to Minn. Rules ch. 7050 affect the Class 1 beneficial use, which protects waters (both surface and groundwater) used as a source for domestic consumption.
To make electric school buses more affordable to school districts, the MPCA started a grant program that puts more of the cleaner buses on routes across the state.
From January through March 2025, MPCA air monitoring data showed elevated lead levels that exceeded national ambient air quality standards near the facility. An MPCA inspection of Gopher Resource in spring 2025 confirmed that the source of the elevated lead levels was addressed.
Allows new and expanding wastewater treatment facilities to receive a discharge permit prior to completion of an applicable phosphorus-related TMDL. Through pre-TMDL phosphorus trading a, a new or expanding facility may increase its phosphorus discharge by purchasing a phosphorus reduction from another source.
What is the blue-green scum that looks like spilled paint?In lakes that are over-enriched with phosphorus and nitrogen, algae tend to prosper and create algae blooms. Blue-green algae and one type in…
Smart Salting is a suite of techniques that minimize the environmental and economic impacts of chloride while still meeting public needs.
Through this Minnesota climate smart food systems (CSFS) grant, the MPCA sought project proposals to partially fund new, cleaner versions of fossil fuel on-road and off-road equipment and vehicles in Minnesota.
Stakeholders affected by the Minnesota Electronics Recycling Act must be registered with the MPCA.
Finding ways to keep stormwater on land and let it soak into the ground can lessen the negative effects on water quality from stormwater.
MPCA offers Climate Resilience Planning grants, with a listing of previous grant winners
Dentists in Minnesota must meet federal and state requirements to limit the amount of mercury in their wastewater.
The MPCA is committed to engaging broadly with the public and ensuring that residents affected by its decisions have a voice in its processes.
Answers to questions frequently asked by municipalities about management of contaminated sediments in stormwater collection systems that they own and operate.
The Performance Excellence Network has awarded the MPCA its Excellence Award for the agency's superior operational performance and commitment to continuous improvement.
The MPCA added three bodies of water to the impaired waters list for PFAS contamination. Which are they? How did they get polluted? And how much PFAS does it take to contaminate a body of water?
Through this Minnesota climate smart food systems (CSFS) grant, the MPCA offered approximately $10 million in grant funding for projects that will expand Minnesota’s infrastructure capacity for composting source-separated organic materials (SSOM) with a focus on wasted food and food scraps.
Industrial Stormwater Steps to Compliance Step 4: Create SWPPP, choose BMPs
Stephen Funk shared his story as part of We Are Water MN, a traveling exhibit and community engagement program that explores Minnesotans’ relationships with water.