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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.

Best practices for SSTS installations drafted by St. Louis County, Minn., in 2008 based on the experiences of SSTS installers and inspectors.

Find out whether your feedlot needs to register, to get an environmental review, or apply for a permit.

To ensure that every person in Minnesota has healthy air to breathe, the MPCA studies, monitors, and regulates air pollutants, primarily in three categories: criteria pollutants, air toxics, and greenhouse gases.

All distribution media products must be registered with the MPCA.

Bacteriological reduction products registered for use in Minnesota

During the 2023 legislative session, legislators passed more than a dozen funding and policy proposals to address food waste, organics, recycling market development, and wood waste.

Three committees are accountable to and advise the full Clean Water Council. Meetings are scheduled and open to the public.

Disposing of wastes from a natural disaster or large fire

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

The MPCA administers programs that are governed by 45 chapters of rules. The MPCA periodically conducts a “housekeeping” rulemaking to make minor corrections and clarifications to the rules or to repeal rules that have become obsolete.

The wood waste hierarchy outlines wood waste disposal methods in order of most preferable to least preferable.

Facilities in specific industries that store materials, waste, or equipment outdoors are subject to industrial stormwater regulations administered by the MPCA.

Underground storage tank (UST) facilities must designate owners, operators, or employees as Class A, Class B, and Class C operators.

This Winnebago River consists of a stream and lake system in southern Minnesota that flows into Iowa. The water resources here face several water quality challenges, including high nutrient and bacteria levels.

Local governments with SSTS programs submit information to the MPCA each year on SSTS permitting and compliance trends for the previous calendar year. The information helps the agency with long-range planning efforts.

SSTS inspections determine if the design and installation meet code requirements and whether the system is functioning properly to protect public health and groundwater.

Throughout her life, Jen Widmer has felt a deep connection to wetlands. As a child, she played broomball on the ice of a wetland near her home. She once attempted swimming in the wetland but was…

In rules, an incorporation by reference states that the contents of another document are part of the rule, even though the text of the referenced document does not appear in the rule itself.

The Red River of the North - Marsh River Watershed is part of the Red River Basin in northwestern Minnesota and southeastern North Dakota.