BLIGNY LES BEAUNE Wastewater Treatment Plant, Bligny-lès-Beaune, France

The BLIGNY LES BEAUNE wastewater treatment plant is located in Bligny-lès-Beaune, a commune in the Côte-d'Or department of Bourgogne-Franche-Comté, France. It serves a population of approximately 1,140 people, classifying it as a small agglomeration under French and EU regulations. The plant is situated inland, away from coastal areas, and operates as part of the region's municipal wastewater infrastructure. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. It has a designed capacity of 1,300 m³/day and currently treats an average daily flow of 203.37 m³/day, indicating significant spare capacity. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. Treated effluent is discharged into local watercourses that ultimately drain into the Saône River, a major tributary of the Rhône. The Rhône flows into the Mediterranean Sea, making the plant part of a large transboundary river basin. The receiving waters support diverse aquatic life and are important for regional agriculture and biodiversity.

The plant discharges into local streams that feed the Saône River, which joins the Rhône before reaching the Mediterranean Sea. This watershed supports diverse aquatic ecosystems, including fish species such as brown trout and European eel. The region's agricultural activities, particularly viticulture in the nearby Côte de Beaune wine area, depend on clean water resources, making effective wastewater treatment essential for protecting downstream water quality and ecological health.