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Nitrogen, like phosphorus, is a nutrient that pollutes in state waters, and its concentration in many rivers has been increasing from historic natural levels over time due to human influences.…
Best practices for SSTS installations drafted by St. Louis County, Minn., in 2008 based on the experiences of SSTS installers and inspectors.
MPCA's recommended review criteria for wastewater treatment facilities that need to perform system maintenance that requires approval to bypass untreated or partially treated domestic wastewater.
Cleanup and recovery from a natural disaster depends on local units of government to guide and direct residents to ensure the effective and efficient disposal of wastes in accordance with statutes, rules, and guidelines.
Resources for the dry cleaning industry
Financial assistance for SSTS work is targeted to units of local government.
In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.
Composting organic waste and compostable products creates a valuable product that improves soil fertility, conserves water, and reduces erosion.
Application forms and instructions for applying for wastewater permits.
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
Protecting and restoring water quality is one of the MPCA's core areas of focus.
The MPCA issued a new air quality permit for this manufacturing facility in White Bear Township.
MPCA rules govern how septic systems are designed, installed, and managed.
MPCA is planning new rules governing air quality, establishing new rules for odor management plan requirements.
Documents and forms related to the identification and management of hazardous waste in Minnesota.
Biosolids that will be applied to land must meet strict regulations and quality standards.
MPCA completed 100 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the first half of 2024
Water softeners produce much of the chloride that pollutes Minnesota’s waters. An MPCA grant aims to reduce that pollution with water softener replacement rebate programs.
Chloride is a problem for wastewater facilities and stormwater permittees.
Most AST systems that contain liquid capable of polluting the waters of the state are subject to state rules and permits.