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Two small creeks in the Nemadji River watershed are cleaner, and some fish have returned, after restoration work that the MPCA took part in.
Heavy metals are an ill-defined group of inorganic chemical hazards that include lead, chromium, arsenic, and cadmium. They may leach into soil and water from industrial sites, mines or…
A series of new culverts in Lake County reconnect brook trout habitat and provide resilience to climate change for area roads.
Chemicals in the air toxics emission inventory.
Lead-free fishing tackle is not a novelty. We provide this list of vendors that manufacture, retail, or supply nontoxic fishing weights.
The MPCA and its many partners collect a wide variety of data on environmental conditions and pollution sources.
MPCA investigation found stormwater permit violations that occurred during a construction project in 2025, with sediment-laden stormwater entering a stream at a construction site in Chaska.
Status of total maximum daily load (TMDL) projects in Minnesota.
The MPCA fined West Fraser Forest Products $24,750 for exceeding the total amount of hazardous air pollutants (HAPs) allowed by the air permit for the company’s Solway facility from January 2024 to January 2025.
Standard operating procedures (SOPs) reflect how agency staff and contracted partners complete agency-funded field activities.
The MPCA has a mobile air monitoring program that allows the agency to respond faster to community air quality concerns across the state. The mobile air monitor collects data in areas where permanent…
The MPCA provides financial and technical assistance to local government and other water resource managers to address nonpoint-source water pollution.
Austin's municipal wastewater treatment plant discharged ammonia and fecal coliform over permitted limits into the Cedar River.
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…
Hutchinson Utilities exceeded its permit limit for particulate matter during an air quality performance test. High levels of particulates are known to cause environmental harm and health problems.
MPCA investigators say West Fraser paid a fine of $15,775 for air permit violations at their facility in Solway.
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.
MPCA investigation in 2025 found that Sheldahl Flexible Technologies submitted incorrect permit applications and failed to obtain MPCA approval prior to installing or modifying three pieces of industrial mixing equipment.
Any facility that emits air pollutants above certain levels is required to have an air quality permit.
The discharges in summer 2024 happened during the construction of the MnDOT truck facility in Eden Prairie, Minnesota.