CUSHING SD 1 STP - Secondary Wastewater Treatment in Town of Laketown, Wisconsin

CUSHING SD 1 STP is a municipal wastewater treatment facility located in the Town of Laketown, Polk County, Wisconsin. The plant serves a small population of approximately 200 residents, providing secondary treatment to meet state and federal water quality standards. As a secondary treatment plant, it utilizes biological processes to remove organic matter and suspended solids from wastewater. The facility has a designed capacity of 68.14 million gallons per year and currently treats an annual discharge volume of 56.78 million gallons. Operations are regulated under the U.S. Clean Water Act, with oversight from the Wisconsin Department of Natural Resources. The treated effluent is discharged into local waterways that ultimately drain into the St. Croix River basin, a tributary of the Mississippi River. This region supports diverse aquatic life and recreational activities, making proper treatment essential for protecting downstream water quality and ecosystems.

The plant discharges into local streams that flow into the St. Croix River, a National Scenic Riverway that supports diverse fish and wildlife habitats. The St. Croix River joins the Mississippi River near Prescott, Wisconsin, contributing to the larger Mississippi River ecosystem. The area is ecologically sensitive, with wetlands and forests that rely on clean water for flood control and biodiversity.