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Environmental information and resources for the aggregate industry.

Enbridge Energy is continuing restoration work around its new Line 3 crude oil pipeline across Minnesota. The new line replaces an aging Line 3 and began operating in October 2021, after Enbridge completed the project’s construction phase.

MPCA issues coverage to construction site owners and their operators to prevent stormwater pollution during and after construction, and protect Minnesota's water resources.

MPCA established a network of long-term biological monitoring stations that represent a variety of stream types in their most natural condition.

The Leech Lake River Watershed consists of approximately 854,659 acres (1,335 sq. miles) in the northern part of the Upper Mississippi River Basin. The watershed includes parts of Beltrami, Cass, and Hubbard counties and the Leech Lake Reservation (Leech Lake Band of Chippewa).

Important details to help make your e-Service submittal go as smoothly as possible.

1,4-dioxane was mainly used as a stabilizer for chlorinated solvent 1,1,1-trichloroethane. 1,4-dioxane can also be an unintended contaminant in the production of certain products, including some…

Batteries aren’t trash, they’re treasure: Recycling old batteries gives their materials a new life. Visit CollectED's new, carnival-style interactive exhibit at MPCA's Eco Experience at the Minnesota State Fair to learn more about batteries.

Determine if your facility requires an air permit and, if so, which permit type may be the best fit for your business.

Information for larger feedlot owners on the federal National Pollutant Discharge Elimination System (NPDES) and State Disposal System (SDS) permits for construction and operation permits in Minnesota.

We Are Water next visits Ortonville and the Big Stone Lake area March 15 through April 21.

The Mississippi River - Headwaters Watershed consists of 1.26 million acres (1,961 square miles) and contains the headwaters of the Mississippi River at Lake Itasca in Itasca State Park. The watershed includes parts of Becker, Beltrami, Cass, Clearwater, Hubbard and Itasca counties.

Important details to help make your e-Service administrative submittal go as smoothly as possible.

Facilities that produce air emissions can benefit by proposing limits on their own operations to avoid certain types of regulatory requirements. You might accept limits to stay under emission…

The Lake Superior - North Watershed covers over 1 million acres in the Northern Lakes and Forest ecoregion.

Phosphorus management plans help wastewater treatment facility operators and managers evaluate pollution prevention and and management options that can reduce the amount of phosphorus discharged to Minnesota waters.

Environmental information and resources for the biochar industry.

The MPCA’s Smart Salting program helps cut down on chloride pollution by training snowplow drivers and municipalities to use less salt on the roadways.

Although the impacts from Minnesota’s changing climate are touching all of us, some groups of people are more at risk.

The Mississippi River - Twin Cities Watershed is 656,990 acres and lies almost entirely in the North Central Hardwoods Forest ecoregion in the Mississippi River Basin. The watershed contains 1,320 stream miles and 380 lakes. More than 1.8 million people live in this watershed.