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The MPCA studies, monitors, and regulates water pollutants to protect human health and the environment. Minnesota water quality standards strives to protect water for use, measures health of waters, and guides limits on what regulated facilities can discharge to surface waters.

The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.

Create an editable spreadsheet of details about your facility to make calculations of emissions.

Image Facilities with one or more aboveground storage tank (AST) with a total capacity of one million gallons or more must obtain a major facility…

Projects to prioritize environmental justice areas

Environmental information and permits that affect metal fabrication and finishing businesses.

Requirements for discharges from a project site and/or management control site(s).

While hundreds of fish kills occur in Minnesota every year, mostly in lakes and ponds, fish kills on trout streams in southeast Minnesota are much less common.

The MPCA is working on both short and long-term solutions to the growing waste problems in the Twin Cities metropolitan area.

Composting organic waste and compostable products creates a valuable product that improves soil fertility, conserves water, and reduces erosion.

Bagnado, a 25-foot-tall spinning tornado of plastic bags, will return to Eco Experience at the Minnesota State Fair

Industrial Stormwater Steps to Compliance - Step 5: Gather application materials before applying, use the e-Service to apply or modify coverage

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

MPCA issues coverage to construction site owners and their operators to prevent stormwater pollution during and after construction, and protect Minnesota's water resources.

The Minnesota Pollution Control Agency (MPCA) today announced a new initiative to monitor water quality throughout the entire Mississippi River within Minnesota’s borders for the first time in a single year.

We Are Water MN travels to Chisago County, where Dawn White has served as an educator and policy team member focused on preserving waters.

MPCA and MDH statement on the U.S. EPA's maximum contaminant levels for PFAS in drinking water.

It's Septic Smart Week and Minnesota local governments are reporting significant progress in fixing inadequate septic systems around the state.

Pesticide NPDES Permit Steps to Compliance Step 2: submit a notice of intent

The Minnesota GreenCorps program, coordinated by the MPCA, aims to preserve and protect Minnesota’s environment while training a new generation of environmental professionals.