Search
Air quality dispersion modeling uses a computer model to estimate air pollution concentrations from regulated facilities and other sources of pollution.
The Rainy River - Rainy Lake Watershed covers 583,791 acres. Open water makes up 75,815 of those acres and wetlands occupy another 84,851 acres. The watershed is 64% in St. Louis County and 36% in Koochiching County. The northern boundary is part of the international border waters with Ontario, Canada.
Air sensors are instruments that measure air quality conditions in near real time.
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.
A gateway to common regulatory information that affects stationary engines.
While hundreds of fish kills occur in Minnesota every year, mostly in lakes and ponds, fish kills on trout streams in southeast Minnesota are much less common.
The MPCA 401 certification fills a unique niche in protecting water quality by applying state water quality standards to projects.
MPCA awards first of two rounds of Tribal technical assistance grants intended to advance environmental work on reservations and in Tribal communities
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…
Image Climate change continues to have a destructive impact on Minnesota’s infrastructure, presenting a direct threat to our homes, businesses, roads…
In the management of construction stormwater, MPCA recognizes Southwest Light Rail Extension project for responsible development through stormwater controls.
The MPCA is collaborating with many federal, Tribal, state, and local partners to clean up contaminated sites in the Duluth harbor and St. Louis River.
The MPCA has a variety of educational displays, programs, and materials about chloride pollution. We encourage our partners to utilize these resources to engage with their community.
The chemical 1,4-dioxane, a likely carcinogen, was found in private wells near Bunker Lake Blvd. and Crosstown Blvd.
Don't let your septic system freeze. Here are some simple tips that can help you avoid costly problems with your septic system.
State will begin engagement next month on an updated framework set to be released in 2025
MPCA issues coverage to construction site owners and their operators to prevent stormwater pollution during and after construction, and protect Minnesota's water resources.
PolyMet Mining plans to develop a mine and processing plant to extract copper, nickel, and precious metals.
Properly trained and certified SSTS personnel are critical. What work duties can local program staff do before becoming certified, and how can that process be expedited?
The Minnesota River - Mankato Watershed covers 861,886 acres across Cottonwood, Brown, Redwood, Renville, Sibley, Nicollet, Blue Earth, and Le Sueur counties in south-central Minnesota.