REEDSBURG STP Wastewater Treatment Plant, Reedsburg, Wisconsin

REEDSBURG STP is a municipal wastewater treatment facility located at 753 Division Street in Reedsburg, Sauk County, Wisconsin. The plant serves a population of approximately 8,529 residents, placing it in the small-to-medium agglomeration category under US regulatory frameworks. As a US-based plant, REEDSBURG STP 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 plant discharges treated effluent into a receiving water body within the Wisconsin River basin, which ultimately drains into the Mississippi River and the Gulf of Mexico. The facility plays a key role in protecting local water quality and downstream ecosystems in the Driftless Area, a region known for its spring-fed streams and diverse aquatic habitats.

The plant discharges into a tributary of the Wisconsin River, part of the Upper Mississippi River Basin. The receiving waters support diverse aquatic life, including game fish species, and are important for regional biodiversity. Downstream, the Wisconsin River flows into the Mississippi River, which carries water to the Gulf of Mexico, where nutrient loading is a concern for hypoxic zones.