CHAROLLES Sud ouest de la ville Wastewater Treatment Plant, Changy, France

The CHAROLLES Sud ouest de la ville wastewater treatment plant is located in the commune of Changy, near Charolles, in the Bourgogne-Franche-Comté region of France. The facility serves a population of about 5,506 and is part of the municipal wastewater infrastructure for the area. 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 5,333 m³/day and a current discharge volume of 982.26 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River basin. The plant plays a key role in protecting the region's water quality, supporting aquatic life, and maintaining the ecological balance of downstream water bodies.

The plant discharges into the local watershed within the Loire River basin, one of France's major river systems. The Loire flows into the Atlantic Ocean, supporting diverse aquatic ecosystems along its course. The advanced treatment helps protect sensitive downstream environments, including areas important for fish migration and biodiversity.