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The MPCA is committed to engaging broadly with the public and ensuring that residents affected by its decisions have a voice in its processes.

New easy-to-access trainings help small businesses figure out if they are subject to MPCA regulations, and how to become more sustainable.

Northern Iron operates an iron foundry in an environmental justice area in Saint Paul's Payne-Phalen neighborhood.

Pretreatment by commercial facilities and other non-domestic wastewater sources removes harmful pollutants before the wastewater is discharged to a municipal sewer system. The U.S. EPA has delegated MPCA the authority to approve pretreatment programs at the local level and oversee statewide pretreatment activities.

Smith Foundry has ceased operations at its East Phillips facility after an investigation and settlement with the U.S. EPA that the MPCA supported.

The MPCA enforces federal and state requirements for air quality permitting.

Tools to help small businesses determine if they need an air emissions permit and/or track compliance with their current air emissions permit.

Licensing and permitsCannabis businesses in Minnesota require a state license for their specific operation (micro-business, processor, retailer, etc.) from the Office of Cannabis Management. The…

Environmental information and permits that affect wood-finishing industries.

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

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

Guidance for solid waste facilities

Septic system owners are responsible for system maintenance. Properly maintaining a septic system will extend its life.

This page provides assistance for local units of government with development and implementation of their SSTS program.

Biosolids that will be applied to land must meet strict regulations and quality standards.

MPCA permits are required to both build and operate landfills in Minnesota.

Facilities that have site-specific state implementation plan (SIP) requirements may make changes to their operations that require changes to either their Administrative Order or Title I SIP…

3M will use an advanced wastewater treatment system to remove per- and polyfluoroalkyl substances (PFAS) from its Chemical Operations facility in Cottage Grove.

Some facilities may have air emissions low enough to qualify as "insignificant," and not be required to have an air permit.

Guidance for small businesses on reporting air emissions.