WRIGHTSTOWN SD 2 STP - Advanced Wastewater Treatment in Greenleaf, Wisconsin

WRIGHTSTOWN SD 2 STP is a municipal wastewater treatment facility located in Greenleaf, Wisconsin, within Brown County. The plant serves a small population of 214 residents, providing advanced treatment to protect local water quality. As a facility in the United States, it operates under the regulatory framework of the Clean Water Act, administered by the Wisconsin Department of Natural Resources. The plant has a designed capacity of 37.85 million gallons per year and discharges a similar volume of treated wastewater. The advanced treatment level ensures high-quality effluent, reducing pollutants before discharge. For small agglomerations like this, the US EPA typically requires secondary treatment as a minimum, but this facility exceeds that standard with advanced processes. The treated effluent is discharged into a local water body, ultimately contributing to the Fox River watershed and Lake Michigan. The plant plays a key role in protecting downstream aquatic ecosystems, including the ecologically sensitive Green Bay area, which supports diverse fish and wildlife populations.

The plant discharges into a local water body within the Fox River basin, which flows into Green Bay and then Lake Michigan. This watershed supports diverse aquatic life, including fish species such as walleye and perch, and is an important migratory corridor for birds. The advanced treatment helps minimize nutrient loading and protects the ecological health of the bay.