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MPCA solicited proposals from qualified contractors to research and report on the projected costs of climate change adaptation and resilience measures needed to mitigate the projected impacts in Minnesota.
Businesses with low levels of actual emissions can submit a simplified permit application and obtain a registration permit, with greater flexibility to make changes as long as they continue to maintain permit requirements.
Financial assistance for SSTS work is targeted to units of local government.
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
The MPCA monitors and assesses lakes around the state to determine if they meet water quality standards.
The Minnesota Retiree Environmental Technical Assistance Program (RETAP) employs skilled, retired professionals to provide facility assessments to small businesses, institutions, and city and county governments in Minnesota.
Environmental regulations vary by industry. To help you navigate this, we've compiled key considerations based on common industries, processes, and equipment.
The air emissions breakdown/shutdown notification form is required by rule to prevent endangerment of human health or the environment.
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…
Image Climate change is having a profound impact on Minnesota's natural environment. Many of our state's iconic native plants and animals — from birch…
What is the blue-green scum that looks like spilled paint?In lakes that are over-enriched with phosphorus and nitrogen, algae tend to prosper and create algae blooms. Blue-green algae and one type in…
The Red Lake River Watershed, which covers 909,024 acres, is part of the Red River Basin in northwestern Minnesota. The Red Lake River begins its course in Beltrami County at Lower Red Lake.
Best practices for SSTS installations drafted by St. Louis County, Minn., in 2008 based on the experiences of SSTS installers and inspectors.
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…
In 2010, the MPCA began receiving public inquiries about projects to mine silica sand for use in hydraulic fracturing, or “fracking,” a drilling method used for natural gas and oil wells.
Underground storage tank (UST) facilities must designate owners, operators, or employees as Class A, Class B, and Class C operators.
Smith Foundry has ceased operations at its East Phillips facility after an investigation and settlement with the U.S. EPA that the MPCA supported.
Most AST systems that contain liquid capable of polluting the waters of the state are subject to state rules and permits.
The Upper/Lower Red Lake Watershed covers more than 1.2 million acres and is home to Upper and Lower Red Lakes, the two largest bodies of water within the state.
MPCA keeps its public data easily accessible for convenient use.