Beaufort sur Doron Wastewater Treatment Plant, Villard-sur-Doron, Savoie

Beaufort sur Doron is a wastewater treatment plant located in Villard-sur-Doron, within the Savoie department of the Auvergne-Rhône-Alpes region in France. The plant serves a population of approximately 29,565 people, placing it in the medium agglomeration category under EU classification. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations between 10,000 and 150,000 population equivalent discharging into freshwater. The plant's treatment processes are designed to meet these standards, ensuring compliance with national and European water quality regulations. The treated effluent is discharged into the local watershed, which ultimately drains into the Doron River, a tributary of the Arly River, and then into the Isère River, part of the Rhône basin. This river system supports diverse aquatic life and flows through the Alpine region before reaching the Mediterranean Sea. The plant plays a key role in protecting water quality in this ecologically sensitive mountain environment.

The plant discharges into the Doron River, which flows into the Arly River, then the Isère River, and eventually the Rhône River, which empties into the Mediterranean Sea. This Alpine watershed supports sensitive aquatic ecosystems, including fish species adapted to cold, oxygen-rich waters. The plant's treatment helps maintain water quality in a region known for its natural heritage and tourism.