ARACHES Wastewater Treatment Plant, La Frasse, Auvergne-Rhône-Alpes

ARACHES wastewater treatment plant is located in La Frasse, part of the Arâches-la-Frasse commune in the Haute-Savoie department of Auvergne-Rhône-Alpes, France. The plant serves a population of around 12,000, placing it in the medium agglomeration category under EU regulations. As a French facility, ARACHES operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), supporting its role in managing local wastewater. The plant discharges treated effluent into the local watershed, which ultimately drains into the Arve River and then the Rhône River, flowing to the Mediterranean Sea. This alpine region features sensitive aquatic ecosystems that benefit from proper wastewater treatment to maintain water quality.

The plant is situated in the Arve River basin, a tributary of the Rhône River. The Arve flows through the Alpine valley before joining the Rhône near Geneva, which then continues to the Mediterranean Sea. This watershed supports diverse aquatic life and is important for regional biodiversity, requiring effective treatment to protect downstream ecosystems.