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Information about the work to clean up the pollution from over 100 years of unregulated development and industrial practices.
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…
The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
MPCA established a network of long-term biological monitoring stations that represent a variety of stream types in their most natural condition.
Chloride is a problem for wastewater facilities and stormwater permittees.
Clearing ice? Before you reach for the salt bag and begin to scatter, consider using other tools to get the job done that are less toxic to our waterways and our beloved pets, and will save you money.
The Clearwater River Watershed drains an area of 886,600 acres in the Red River of the North basin. The river flows to the northwest and southwest, eventually emptying into Red Lake River near Red Lake Falls.
Best practices for SSTS installations drafted by St. Louis County, Minn., in 2008 based on the experiences of SSTS installers and inspectors.
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.
Profile of Julia Dady, a volunteer water monitor for Battle Creek in Saint Paul.
Waterways in the northeastern part of the state are generally in better condition than those in the southern, central, and western regions.
The MPCA Brownfield Program is a fee-for-service program that provides assistance to promote the investigation, cleanup, and redevelopment of property that is contaminated with petroleum and hazardous substances.
Minnesota’s Continuous Nitrate Sensor Network generates publicly available water quality data on nitrate levels in our surface water.
“Area C” is the name given to Ford Motor Company’s former industrial waste dump on the floodplain of the Mississippi River, at the base of the bluff below the former Twin Cities Assembly Plant in Saint Paul.
Finding ways to keep stormwater on land and let it soak into the ground can lessen the negative effects on water quality from stormwater.
The MPCA regulates the design, construction, and operation of treatment facilities for municipal and industrial wastewater in Minnesota.
To protect human health and the environment, we need to limit the amount of per- and polyfluoroalkyl substances (PFAS) in our waters to safe levels. Safe levels means water can be used for drinking,…
What is the blue-green scum that looks like spilled paint?In lakes that are over-enriched with phosphorus and nitrogen, algae tend to prosper and create algae blooms. Blue-green algae and one type in…
MPCA issues coverage to construction site owners and their operators to prevent stormwater pollution during and after construction, and protect Minnesota's water resources.
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.