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To help you quickly determine whether this permit affects you, what your requirements are, and what to do next, the MPCA has developed an Applicability flow chart

All facilities with air permits must submit an annual emissions inventory report to the MPCA that tracks actual emissions of major pollutants at that facility.

Permitted waste facilities, waste utilization projects, and waste haulers in Minnesota must submit regular reports to the MPCA.

Permitted waste facilities, waste projects, and waste haulers in Minnesota must submit regular reports to the MPCA.

The Regional Haze Rule requires states to improve visibility in our nation's national parks and wildernesses (Class I areas) and restore them to natural visibility conditions by 2064.

Each year, MPCA hires seasonal positions to assist with biological monitoring of streams and wetlands during the summer months.

Ground-level ozone is a secondary pollutant formed through chemical reactions between nitrogen oxides (NOx) and volatile organic compounds (VOCs). Ozone can irritate the eyes, nose and throat,…

The MPCA developed the Wastewater Nitrogen Reduction and Implementation Strategy to decrease the wastewater sector’s nitrogen loads for the protection and restoration of bodies of water in and downstream of Minnesota.

Countless bacteria can be found in land, water, humans, and animals. Most bacteria are beneficial, serving as food for larger organisms and playing critical roles in natural processes such as organic…

MPCA awards first of two rounds of Tribal technical assistance grants intended to advance environmental work on reservations and in Tribal communities

MPCA guidance on petroleum site investigation and remediation, reporting, and more.

Groundwater and drinking water in the east Twin Cities metro area is contaminated with PFAS due to 3M's disposal practices at four sites in the area.

Residents' guide to stormwater permitting.

What is a stormwater catch basin, and should I be worried about it?

The Lower Rainy River Watershed is composed of a conglomeration of tributaries to the Rainy River, from International Falls and west to the Rainy River's pour point at the Lake of the Woods.

A waste is any material that can no longer be used for its original intended purpose. The type of waste generated can include recyclables, solid waste, and hazardous wastes, which may be subject to specific management and disposal requirements.

A TMDL addressing excess bacteria in 22 stream reaches and protection strategies for 29 stream and river reaches in the Upper Mississippi River watershed.

Create an editable spreadsheet of details about your facility to make calculations of emissions.

Southeastern Minnesota is characterized by an unusual type of geography called karst, where the distinction between groundwater and surface water is blurry.

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for north and central Minnesota. The alert runs until 11 p.m. on Wednesday, July 30. Fine particle levels are expected to reach the red air quality index (AQI) category, a level considered unhealthy for everyone, across north central, northwest, northeast, and east central Minnesota, and the orange AQI category, a level considered unhealthy for sensitive groups, across central, east central, west central, north central, and northwest Minnesota.