Cashton WWTP - Advanced Wastewater Treatment in Cashton, Wisconsin

Cashton WWTP is a municipal wastewater treatment facility located in Cashton, Monroe County, Wisconsin. Serving a population of about 1,758, the plant is part of the region's infrastructure for managing domestic wastewater in this rural community. The plant employs advanced treatment processes, exceeding the secondary treatment standard required by the US Clean Water Act. With a designed capacity of 458.03 million gallons per day and an average discharge volume of 340.69 million gallons per day, it operates efficiently to meet regulatory standards. Treated effluent from the plant is discharged into local streams that flow into the Kickapoo River, a tributary of the Wisconsin River, which ultimately drains into the Mississippi River. The plant plays a key role in protecting water quality in this ecologically sensitive region, which supports diverse aquatic life and recreational activities.

The plant's treated effluent enters local waterways that feed into the Kickapoo River, part of the Upper Mississippi River Basin. This watershed supports diverse aquatic habitats and is important for regional biodiversity. The advanced treatment helps minimize nutrient loading and protects downstream water quality in the Mississippi River system.