Search

The MPCA library provides access to the agency's curated collection of environmental information for agency employees, external professionals, and the public.

In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.

Removing Middle Lake from the impaired waters list required wrangling with a bottom feeder, the invasive carp.

$5.5 million grant from the U.S. EPA will help three Minnesota school districts partially electrify their bus fleets.

Minnesota has revised state water quality standards to incorporate a tiered aquatic life use (TALU) framework for rivers and streams.

Wild rice is an important part of the biological community in many Minnesota lakes, streams, and wetlands, and a cultural resource to many, particularly members of the Dakota and Ojibwe Tribal Nations in Minnesota.

Don't let your septic system freeze. Here are some simple tips that can help you avoid costly problems with your septic system.

Prevent costly sewer clogs by keeping grease out of sinks and by not flushing disposable wipes.

Guidance for MPCA contractor and subcontractors

The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.

Frequently asked questions about SSTS certification and licensing.

People who service and dispose of vehicle air conditioners or appliances that contain refrigerants must be certified.

Question and answer session with Addison Otto, a rule coordinator with the MPCA, about her work with the agency and how her hobby farm informs her work.

Does it seems like the number of alerts due to wildfires has increased in the past few years? We’ve had 46 air-quality alerts since 2015—34 of those due to wildfire smoke.

The MPCA is leading multiple initiatives to reduce greenhouse gas emissions from the transportation sector.

Forms, guidance, and assistance to apply for an air quality permit.

The MPCA is working with the city of Minneapolis to identify sources of air pollution in North Minneapolis and find strategies to reduce emissions.

Application fees must be submitted with your permit application. The submittal cover page form will help you add up the points assigned to each type of permit application or request. Multiply the…

For National Farmers Day, a profile of pork and crop farmer Randy Spronk of Edgerton, Minnesota, and his sustainable ag practices.

Determine if your facility requires an air permit and, if so, which permit type may be the best fit for your business.