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Air quality dispersion modeling uses a computer model to estimate air pollution concentrations from regulated facilities and other sources of pollution.

Less than three years after Minnesota passed the country's first ban on TCE, a carcinogenic solvent, facilities around the state have removed it from their processes.

Many industrial by-products are good candidates for land application based on their nutrient content.

Permit applications must include detailed emissions calculations to help determine which permit type or permit amendment is needed.

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.

Public input is critical to the work that we do. We invite that input by soliciting comments on agency decisions, holding public informational meetings, and more.

Ask the MPCA features questions Minnesotans have asked us, on the issues the agency works on, from waste disposal, water and air quality, and chemicals in products to recycling and reuse,…

MPCA permits are required for extensions, additions, or other modifications to sanitary sewer collection systems that result in new or increased discharges of pollutants.

This webpage will not only address potential noncompliance issues for air permittees, but it will help inspectors get all of the necessary information to facilities with one link.

Spring is the time for awakening gardens from their slumber and cleaning up the yard. It’s also a good time to start thinking about a backyard compost pile. Here’s how to build one that’ll enhance soil health and that your neighbors won’t mind.

The MPCA must complete assessments to gather critical information too inform the development of the EPR program statewide.

Batteries aren’t trash, they’re treasure: Recycling old batteries gives their materials a new life. Visit CollectED's new, carnival-style interactive exhibit at MPCA's Eco Experience at the Minnesota State Fair to learn more about batteries.

Environmental information and permits that affect grain elevators, feed mills and fertilizer mixing plants.

The Clean Water Act established the framework for creating water quality standards and continues to help us protect Minnesota's prized lakes and rivers.

With 100 days until a law aimed at removing PFAS from consumer products goes into effect, state leaders celebrate three Minnesota-based companies already offering goods made without PFAS.

Smart Salting is a suite of techniques that minimize the environmental and economic impacts of chloride while still meeting public needs.

Karst near Oxbow Park and Zollman Zoo, host of the We Are Water MN traveling exhibit. Phil George, who lives in rural Byron, Minnesota, has always felt a deep…

In 2023, Minnesota saw more air quality alerts covering more days than ever before. Smoke from Canadian wildfires throughout the summer caused many of the alerts, though climate change is playing a growing role in Minnesota's air quality.

Environmental information and permits that affect businesses using boilers.

The MPCA is granting $4.4m from VW settlement funds to replace dirty diesel trucks with cleaner drivetrains. Similar previous grants show how the program works.