SAND CREEK SD 1 STP - Town of Sand Creek, Wisconsin Wastewater Treatment Plant

SAND CREEK SD 1 STP is a municipal wastewater treatment facility located on Bridge Street in the Town of Sand Creek, Dunn County, Wisconsin. The plant serves a small population of 168 residents, reflecting its role in a rural community within the state's wastewater infrastructure. The facility provides secondary treatment, which is the standard level required by the US Clean Water Act for most municipal plants. With a designed capacity of 41.64 million gallons per day and an average discharge volume of 34.07 million gallons per day, the plant operates below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into a local waterway that ultimately drains into the Mississippi River Basin, contributing to the broader watershed. The plant's operations are subject to National Pollutant Discharge Elimination System (NPDES) permits, ensuring compliance with water quality standards to protect downstream ecosystems.

The plant discharges into a tributary of the Red Cedar River, which flows into the Chippewa River and then the Mississippi River. This watershed supports diverse aquatic life and is part of the Upper Mississippi River Basin, an important ecological corridor for fish and migratory birds. The secondary treatment helps reduce nutrient loads, protecting downstream water quality in the Mississippi River and the Gulf of Mexico.