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The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
SSTS staff contact information and areas of responsibility.
The MPCA is planning new rules governing air quality. The main purpose is to adopt new rules to implement and govern regulation of facilities that emit air toxics.
MPCA had approximately $250,000 in grant funding available to help Minnesota governments, businesses, institutions, and organizations address two specific needs: waste reduction/reuse and toxic products prevention.
Owners/operators of construction activity must complete several steps before completing a permit application and beginning construction. These steps also help owners/operators determine their eligibility for coverage under the general permit.
The MPCA regulates waste, recycling, and disposal activities in Minnesota. MPCA permits are required for the design, construction, and operation of solid waste management facilities where storage, collection, transportation, processing or reuse, conversion, or disposal of solid waste occurs.
A water quality variance is a temporary change in a state's water quality standard for a specific pollutant and its relevant criteria, allowing deviation from meeting a water quality-based effluent limit for a particular discharger.
Frequently asked questions about SSTS certification and licensing.
Minnesota has a growing salty water problem that threatens its freshwater fish and other aquatic life. Chloride from both de-icing salt and water softener salt gets into lakes and streams, and…
Particulate matter (PM) refers to various air particles, including dust, soot, smoke, and liquid droplets that range in size from less than 0.1 microns in diameter (smaller than a single bacterium)…
Status of total maximum daily load (TMDL) projects in Minnesota.
Clean heavy-duty off-road equipment grants fund the replacement of older, more polluting diesel equipment with newer, cleaner technology.
Carbon monoxide (CO) is a product of the incomplete combustion of carbon-based fuels—including gasoline, diesel fuel, crude oil, and wood—and other natural and synthetic products. Breathing in…
MPCA recognized 253 municipal and industrial wastewater treatment plants for outstanding operations in 2023.
A project to address excess sediment and turbidity in the Mississippi River, from Fort Snelling at St. Paul to upper Lake Pepin at Red Wing, based on a site-specific standard developed by the MPCA and Wisconsin Department of Natural Resources.
Image Stormwater has an enormous impact on water quality in Minnesota, whether it's runoff from farm fields or from urban hardscapes. Rain and snow…
Study funded by the $850 million settlement that Minnesota reached with 3M in 2018 focused on the area served by the Valley Branch Watershed District’s Project 1007 rainwater conveyance system in the East Metro.
The Mississippi River - Lake Pepin Watershed includes 205,747 acres that drain several small, coldwater streams in bedrock-dominated bluff country.
When people think of sources of air pollution, they typically think about buildings with big smokestacks like power plants and factories. Only about a quarter of the air pollution in Minnesota comes…
The MPCA is leading multiple initiatives to reduce greenhouse gas emissions from the transportation sector.