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This permit aims to reduce phosphorus discharged by point sources to the Minnesota River Basin. This webpage contains links to the permit and its associated forms and fact sheets.
From shorter winter ice seasons to shifting fish populations, climate change is transforming Minnesota lakes as we know them.
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…
Guidance and recommendations for local officials dealing with public health issues related to blue-green algae.
The MPCA regulates the design, construction, and operation of treatment facilities for municipal and industrial wastewater in Minnesota.
Findings underscore need to reduce use of “forever chemicals”
Implementing water quality standards come with tangible costs and benefits. Costs such as taxes to residents, regulated parties, and communities help achieve benefits such as increased property values, tourism, and protecting human health.
The MPCA's regulatory, cleanup, and monitoring programs create and maintain spatial data that serve our environmental protection work and can be shared with partners and researchers.
Residents' guide to stormwater permitting.
Sustainable aviation fuel (SAF) is low-carbon synthetic fuel made from non-petroleum sources that is blended with traditional jet fuel to reduce greenhouse gas emissions from air transportation.
Hot, sunny weather brings the possibility of air quality alerts due to ozone. But what exactly is ozone?
Apply for funds to help assess sites with known or suspected contamination and develop remediation plans.
Spilled mercury, even small quantities in the home, should be cleaned up quickly and properly so that people don't come in contact with it or breathe its vapors.
Under the new EPR program, Minnesota is phasing out all product packaging sold in our state that is not refillable, reusable, recyclable, or compostable by 2032.
Surface water assessment grants (SWAG) provide local organizations and citizen volunteers with funds to complete the monitoring needed to meet assessment requirements on Minnesota lakes and streams. Assessment is usually the first step in protecting or restoring surface waters.
Water scientists from the MPCA published four watershed reports in 2025, updating the data we need to keep Minnesota’s waters clean and protected.
Resources for the dry cleaning industry
In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.
Do not throw any hazardous waste in the trash; instead, bring it to a local collection site. Each county in Minnesota administers a household hazardous waste program to help prevent hazardous chemicals from getting into the environment and harming human health.
The Olmsted Soil and Water Conservation District's Soil Health Farm demonstrates how farmers can benefit from practices that also provide resilience to climate change.