WRIGHTSTOWN SD 1 STP - Advanced Wastewater Treatment in Greenleaf, Wisconsin

WRIGHTSTOWN SD 1 STP is an advanced wastewater treatment facility located in Greenleaf, Wisconsin, within Brown County. The plant serves a small population of 493 residents and is part of the municipal wastewater infrastructure for the area. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 492.10 megaliters and an annual discharge volume of 227.13 megaliters, the facility operates well within its capacity. As a US plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources. The treated effluent is discharged into local waterways that ultimately drain into the Fox River and then into Green Bay, part of the Lake Michigan basin. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the Great Lakes region, supporting water quality and biodiversity.

The plant discharges into the Fox River watershed, which flows into Green Bay and then Lake Michigan. Lake Michigan is a critical freshwater resource supporting diverse aquatic life, including fish species such as lake trout and whitefish. The advanced treatment at this plant helps reduce nutrient loading, which is important for preventing algal blooms and maintaining the ecological health of the Great Lakes.