O Dells Bay SD 1 WWTP - Advanced Wastewater Treatment in Town of Germantown, Wisconsin

O Dells Bay SD 1 WWTP is an advanced wastewater treatment facility located in the Town of Germantown, Juneau County, Wisconsin. It serves a small population of 1,103 residents, providing essential sanitation services for this rural community in the central part of the state. The plant employs advanced treatment processes, which go beyond secondary treatment to remove additional nutrients and contaminants. With an annual discharge volume of 79.49 million gallons and a designed capacity of 238.48 million gallons, the facility operates well below its capacity, indicating room for future growth. As a US plant, it operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources. The treated effluent is discharged into a local water body that ultimately drains into the Wisconsin River watershed, which flows south to the Mississippi River. This contributes to the overall water quality of the Mississippi River Basin, a major ecological and economic resource for the region.

The plant discharges into a receiving water body within the Wisconsin River basin, which flows into the Mississippi River. The Mississippi River supports diverse aquatic life and is a critical migratory corridor for birds and fish. The advanced treatment helps protect downstream water quality in this ecologically significant watershed.