Overview
MANKATO WWTP serves approximately 42,000 residents in Mankato, Minnesota. The plant operates under the U.S. Clean Water Act and NPDES permit program, discharging treated wastewater to the Minnesota River basin.
MANKATO WWTP is a municipal wastewater treatment facility located in Mankato, Minnesota, serving a population of about 42,132. The plant is situated in Blue Earth County and is part of the city's essential water infrastructure. As a medium-sized agglomeration, the facility plays a key role in protecting local water quality. Under the U.S. Clean Water Act, the plant operates under an NPDES permit issued by the Minnesota Pollution Control Agency, which sets effluent limits to protect receiving waters. For a population of this scale, secondary treatment is typically required, and the plant is expected to meet federal and state standards for biochemical oxygen demand and total suspended solids. The plant discharges treated effluent into the Minnesota River, which flows into the Mississippi River and ultimately to the Gulf of Mexico. This river system supports diverse aquatic life and is an important migratory corridor for fish and birds. The plant's operations help reduce nutrient loading and protect downstream ecosystems.
Environmental context
The treated effluent from MANKATO WWTP enters the Minnesota River, a tributary of the Mississippi River. The Minnesota River basin is ecologically significant, supporting diverse fish populations and providing habitat for migratory waterfowl. Downstream, the Mississippi River carries the water to the Gulf of Mexico, where nutrient inputs can contribute to hypoxic zones. The plant's discharge is regulated to minimize environmental impact on this sensitive river system.
Frequently asked questions
MANKATO WWTP is located at 1733 6th Avenue, Mankato, Minnesota, in Blue Earth County, United States.
The plant serves approximately 42,132 residents in the city of Mankato and surrounding areas.
The plant discharges treated effluent into the Minnesota River, which flows into the Mississippi River and eventually reaches the Gulf of Mexico.
The plant operates under the U.S. Clean Water Act and is regulated by an NPDES permit issued by the Minnesota Pollution Control Agency, which sets effluent limits to protect water quality.
For a population of this size, secondary treatment is standard under the Clean Water Act, typically involving biological processes to reduce organic matter and suspended solids.
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