GVV Durmersheim Kla Au am Rhein Wastewater Treatment Plant, Au am Rhein, Germany

GVV Durmersheim Kla Au am Rhein is a municipal wastewater treatment plant located in Au am Rhein, Baden-Württemberg, Germany. Serving an estimated population of 35,550, the facility is part of the regional wastewater infrastructure managed by the Verwaltungsverband Durmersheim. The plant lies near the Rhine River, a major European waterway. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent between 10,000 and 150,000 are required to provide secondary treatment. As a medium-sized agglomeration, the plant is expected to meet this standard, ensuring effective removal of organic matter and suspended solids before discharge. The treated effluent is discharged into the Rhine River, which flows through Germany and the Netherlands before reaching the North Sea. The Rhine supports diverse aquatic life and is an important migratory corridor for fish. The plant's operation helps protect the river's water quality and downstream ecosystems.

The plant discharges into the Rhine River, which flows through the Upper Rhine Valley and eventually drains into the North Sea via the Rhine-Meuse-Scheldt delta. The Rhine is ecologically significant, supporting diverse fish species and serving as a key migratory route. The plant's treatment helps maintain water quality in this internationally important river system.