CLINTON STP - Advanced Wastewater Treatment Plant in Clinton, Wisconsin

CLINTON STP is an advanced wastewater treatment facility located in Clinton, Rock County, Wisconsin. The plant serves a population of approximately 2,322 residents, providing essential wastewater treatment for the community. As a municipal facility, it plays a key role in protecting local water quality. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 1,430.88 and a discharge volume of 492.10, the plant operates under the U.S. Clean Water Act, which requires NPDES permits for all point source discharges. Facilities of this scale typically have permits issued by the Wisconsin Department of Natural Resources. The treated effluent is discharged into a local water body that ultimately drains into the Rock River basin, which flows southward to the Mississippi River. The plant's advanced treatment helps protect downstream aquatic ecosystems and supports the overall health of the Mississippi River watershed.

The plant discharges into a receiving water body within the Rock River basin, which flows into the Mississippi River. This watershed supports diverse aquatic life and is an important migratory corridor for fish and birds. The advanced treatment helps reduce nutrient loading, which is critical for preventing eutrophication in downstream waters, including the Gulf of Mexico hypoxic zone.