Blue River STP - Secondary Wastewater Treatment in Blue River, Wisconsin

Blue River STP is a municipal wastewater treatment facility located in Blue River, Grant County, Wisconsin. The plant serves a small population of 435 residents and operates with secondary treatment, which is standard for communities of this size in the United States. The plant has a designed capacity of 158.99 thousand cubic meters per year and currently discharges approximately 75.71 thousand cubic meters annually, indicating available treatment capacity. As a US facility, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, typically administered by the Wisconsin Department of Natural Resources. The treated effluent is discharged to a local water body, likely a tributary of the Wisconsin River, which flows into the Mississippi River and ultimately to the Gulf of Mexico. The plant plays a key role in protecting local water quality and downstream ecosystems in the Upper Mississippi River Basin.

The plant discharges into a receiving water body within the Upper Mississippi River Basin, likely a small stream or river that feeds into the Wisconsin River. The Wisconsin River flows southwest to join the Mississippi River near Prairie du Chien. This region supports diverse aquatic life and is part of a major migratory corridor for birds and fish. Protecting water quality here helps maintain the ecological health of the Mississippi River system downstream.