ZV Wörmursprung Hildrizhausen Wastewater Treatment Plant, Altdorf, Germany

ZV Wörmursprung Hildrizhausen is a municipal wastewater treatment plant located in Altdorf, within the Böblingen district of Baden-Württemberg, Germany. The plant serves a population of around 13,600, classifying it as a medium-sized agglomeration under European Union regulations. As a German facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. The plant's operational details are managed by the local municipal association. The treated effluent is discharged into local watercourses that ultimately drain into the Neckar River basin, a major tributary of the Rhine. The Rhine flows through several countries before reaching the North Sea, making the plant's performance important for downstream water quality in this densely populated and ecologically significant region.

The plant discharges into the Neckar River basin, which flows into the Rhine River and eventually the North Sea. This watershed supports diverse aquatic life and is an important migratory corridor for fish species. The region's high population density and industrial activity place significant demands on water quality management.