BRAZEY EN PLAINE Wastewater Treatment Plant, Brazey-en-Plaine, France

The BRAZEY EN PLAINE wastewater treatment plant is located in Brazey-en-Plaine, a commune in the Côte-d'Or department of Bourgogne-Franche-Comté, France. It serves a population of approximately 2,719 residents, placing it in the small agglomeration category under French regulations. 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. With a designed capacity of 4,000 m³/day and a reported discharge volume of 485.06 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local waterways that ultimately drain into the Saône River, a major tributary of the Rhône. This contributes to the water quality management of the Rhône basin, which supports diverse aquatic ecosystems and is important for downstream communities and agriculture in southeastern France.

The plant discharges into the local watershed that feeds the Saône River, which flows south to join the Rhône near Lyon. The Rhône then empties into the Mediterranean Sea. This basin supports diverse aquatic life, including fish species such as barbel and chub, and is an important corridor for migratory birds. The advanced treatment helps protect these downstream ecosystems from nutrient pollution and other contaminants.