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From shorter winter ice seasons to shifting fish populations, climate change is transforming Minnesota lakes as we know them.

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

A waste is any material that can no longer be used for its original intended purpose. The type of waste generated can include recyclables, solid waste, and hazardous wastes, which may be subject to specific management and disposal requirements.

Organics recycling reduces greenhouse gas emissions and keeps waste out of landfills. MPCA answers commonly asked questions about how and why to participate in organics recycling programs.

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

Profile of Julia Dady, a volunteer water monitor for Battle Creek in Saint Paul.

First of a series of MPCA staff profiles. Kevin Stroom conducts research on streams and has published a report about Straight River.

MPCA completed 100 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the first half of 2024

The Minnesota Retiree Environmental Technical Assistance Program (RETAP) employs skilled, retired professionals to provide facility assessments to small businesses, institutions, and city and county governments in Minnesota.

Businesses can find many ways to increase competitiveness and boost productivity.

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.

The MPCA provides educational information about the status of Minnesota’s air, water, land, and climate and can point you toward beneficial actions you can take as students, teachers, and life-long learners interested in Minnesota’s sustainable future.

What is "What's in my neighborhood?"What's in my neighborhood provides a wide variety of environmental information about your community.Search for:properties that were previously contaminated and…

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.

The MPCA plans to amend Minnesota Rules chapter 7152 on the Minnesota Dry Cleaner Reimbursement Account to ensure consistency and compliance with state statutes and rules by updating the reimbursement rates for consultant and contractor services for environmental response action costs.

Information about the work to clean up the pollution from over 100 years of unregulated development and industrial practices.

The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.

The MPCA's Petroleum Remediation Program addresses risks to people and the environment from contamination caused by leaking petroleum storage tanks.

The MPCA certifies Minnesota municipal, government, or industrial laboratories that are used to comply with National Pollution Discharge Elimination System (NPDES)/State Disposal System (SDS) permits or for water quality work for agency programs.

These Minnesota sites are registered with the MPCA to accept covered electronic devices for recycling.