Trego Utility District STP - Advanced Wastewater Treatment in Town of Trego, Wisconsin

Trego Utility District STP is a projected advanced wastewater treatment facility located in the Town of Trego, Washburn County, Wisconsin. The plant is designed to serve a small population of 205 residents, reflecting its role in a rural community. As a projected facility, it represents planned infrastructure to meet future wastewater management needs. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 79.49 million gallons per day, the facility is sized to handle the wastewater generated by the local population. In the United States, such plants operate under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources, ensuring compliance with water quality standards. The treated effluent is discharged into a local water body, likely a tributary of the St. Croix River or the Namekagon River, which are part of the St. Croix National Scenic Riverway. This region supports diverse aquatic life and is important for recreational fishing and wildlife habitat. The advanced treatment helps protect downstream water quality in the Mississippi River basin.

The plant discharges into a local water body within the St. Croix River watershed, which flows into the Mississippi River and ultimately the Gulf of Mexico. The St. Croix River is known for its ecological significance, supporting species such as the endangered Higgins eye pearlymussel and providing critical habitat for migratory fish. Advanced treatment at this plant helps reduce nutrient loading, protecting downstream aquatic ecosystems.