SKA Rosengarten Westheim Wastewater Treatment Plant, Westheim, Baden-Württemberg

SKA Rosengarten Westheim is a wastewater treatment plant located in Westheim, a district of Rosengarten in the Schwäbisch Hall district of Baden-Württemberg, Germany. The plant serves a population of 3,350 and is classified as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU UWWTD for agglomerations of this size. With a designed capacity of 4,600 m³/day and an average discharge volume of 879.43 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local water system, which ultimately drains into the Kocher River, a tributary of the Neckar River, and then into the Rhine River. The plant plays a key role in protecting the water quality of the Kocher and downstream ecosystems, supporting aquatic life and recreational uses.

The plant discharges into the Kocher River, which flows through the Swabian-Franconian Forest region before joining the Neckar River, a major tributary of the Rhine. The Kocher supports diverse aquatic life, including fish species such as brown trout and grayling. The Rhine basin is a critical European waterway, and the plant's advanced treatment helps reduce nutrient loads that could contribute to eutrophication in downstream lakes and the North Sea.