Gundershoffen Wastewater Treatment Plant, Grand Est, France

The Gundershoffen wastewater treatment plant is located in the commune of Gundershoffen in the Bas-Rhin department of the Grand Est region, France. It serves a population of approximately 4,800 people, classifying it as a small to medium agglomeration under French regulations. The plant is situated at Le Moulin, Rue du Moulin, within the Alsace region. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Its designed capacity is 4,900 m³/day, and it currently discharges an average of 856.31 m³/day of treated wastewater. The plant operates under French national regulations, which implement the EU directive and set stringent standards for wastewater treatment to protect water quality. The treated effluent is discharged into local water bodies that eventually drain into the Rhine River basin. The Rhine is a major European waterway that flows through Germany and the Netherlands into the North Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the Rhine basin, which support diverse fish populations and migratory birds.

The plant discharges into the local watershed that feeds into the Moder River, a tributary of the Rhine. The Rhine basin is a major ecological corridor in Europe, supporting diverse aquatic life and migratory fish species. The advanced treatment at Gundershoffen helps reduce nutrient and pollutant loads, protecting downstream water quality in the Rhine and ultimately the North Sea.