Search

Determine what type(s) of water quality permit is required at facilities that mine construction sand and gravel; industrial sand; quarry limestone, granite or dimension stone; operate hot mix asphalt production areas; produce concrete block, brick and other products; and/or produce ready-mix concrete.

Up to $20 million in grants for projects that restore and enhance aquatic resources, wildlife, habitat, fishing, and outdoor recreational opportunities in portions of Washington, Ramsey and Dakota counties and downstream areas of the Mississippi and St. Croix rivers affected by PFAS released by 3M.

Sulfur dioxide (SO2), a foul-smelling toxic gas, is part of a larger group of chemicals called sulfur oxides. These gases, especially SO2, are emitted by the burning of fossil fuels or other…

Groundwater is the source of drinking water for about 75% of all Minnesotans and provides almost all of the water used to irrigate crops. Its purity and availability is critical to the health of the state.

Lake of the Woods is a big lake with a big problem caused by one of nature’s smallest organisms: algae. Scientists from the MPCA and the Science Museum are working together to understand why.

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 2023, Minnesota saw more air quality alerts covering more days than ever before. Smoke from Canadian wildfires throughout the summer caused many of the alerts, though climate change is playing a growing role in Minnesota's air quality.

The Red River of the North - Marsh River Watershed is part of the Red River Basin in northwestern Minnesota and southeastern North Dakota.

Minnesota is the first state government in U.S. to use this combination of innovative technologies to address "forever chemicals”

As part of our commitment to continuous improvement, transparency, certainty, and customer service, the MPCA is improving the way we track and administer permits. These efforts are part of periodical…

Austin's municipal wastewater treatment plant discharged ammonia and fecal coliform over permitted limits into the Cedar River.

Bacteriological reduction products registered for use in Minnesota

Minnesota rules identify 16 standing beneficial uses for which waste generators or end users can simply follow the applicable rules without contacting the MPCA.

Environmental regulations vary by industry. To help you navigate this, we've compiled key considerations based on common industries, processes, and equipment.

MPCA seeks public comment on a proposed air permit for the U.S. Steel Keetac mining facility in Keewatin, Minn.

The effects of contaminants of emerging concern (CECs) on fish, wildlife, and humans are only partly understood. The MPCA has been collecting occurrence data for a diverse set of CECs, but toxicity…

Through this Minnesota climate smart food systems (CSFS) grant, the MPCA sought project proposals to partially fund new, cleaner versions of fossil fuel on-road and off-road equipment and vehicles in Minnesota.

The Soiled Undies exhibit at the Eco Experience at the Minnesota State Fair might look off-putting at first, but it's a good demonstration of the importance of soil health and how healthy soil can help the environment.

MPCA investigation determined that construction sediment was discharged into the Blue Earth River and a county ditch.

State and federal permits and regulations that are designed to protect groundwater and surface water (lakes, rivers, streams, and wetlands) apply to specific facilities and processes that could pose…