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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…

Pig’s Eye Dump in Saint Paul has been slated for cleanup and restoration.

Resources for wastewater clients.

Solid waste facilities may close or terminate their permit depending on the solid waste activities occurring at the site.

With all the talk about health these days, consider the health of the soil beneath your feet. Farmers in western Minnesota are doing just that, teaming up to improve soil health.

The MPCA uses the EQuIS database to store and manage monitoring data and associated laboratory results from streams, lakes, groundwater, ambient air, soil, sediment, and gas, collected through MPCA programs and partnerships.

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.

Air sensors are instruments that measure air quality conditions in near real time.

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

Water quality trading is a market-based approach to the protection and restoration of surface waters, another tool to be used in conjunction with existing voluntary, regulatory, and financial assistance programs.

Environmental information and resources for gas stations.

Minnesota’s air currently meets all federal air quality standards. However, even levels of air pollution below the standards can affect people’s health, including levels currently found in parts of Minnesota.

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

MPCA permits are required for construction, modification, and operation of facilities where solid waste is treated, stored, processed, transferred, or disposed.

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…

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

MPCA's compliance and enforcement program tracks how well wastewater treatment facilities are complying with their permits and takes enforcement actions when necessary.

To reduce contamination at compost facilities, Minnesota’s compostable product labeling law requires all bags, packaging, and food service products labeled as “compostable” and sold in Minnesota after Jan. 1, 2025, to meet certain requirements.

Perchloroethylene or tetrachloroethylene (PCE or Perc) is chlorinated solvent used in a variety of processes as a solvent and degreaser. When released in the environment, some PCE will evaporate…

Answers to frequently asked questions about compliance and MPCA's enforcement of environmental rules in Minnesota.