FETERNES CORNALES Wastewater Treatment Plant, Marin, Auvergne-Rhône-Alpes

FETERNES CORNALES is a wastewater treatment plant located in Marin, a commune in the Haute-Savoie department of the Auvergne-Rhône-Alpes region, France. The plant serves a population of 2,752 and is situated near the shores of Lake Geneva, one of Europe's largest freshwater lakes. Its location in the Alpine foothills places it in a region known for tourism and environmental sensitivity. 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 5,200 m³/day and a current discharge volume of 490.95 m³/day, the facility operates well below its capacity, indicating room for future growth. The plant's advanced treatment ensures high-quality effluent, reducing nutrient loads that could otherwise impact the lake's ecosystem. Treated wastewater from FETERNES CORNALES is discharged into the local watershed, which ultimately drains into Lake Geneva (Lac Léman). Lake Geneva is a major freshwater resource for the region, supporting drinking water supplies, recreation, and diverse aquatic life. The plant's advanced treatment helps protect the lake from eutrophication and maintains water quality for downstream communities and ecosystems.

FETERNES CORNALES discharges into the local watershed that flows into Lake Geneva, the largest alpine lake in Europe. The lake is a critical freshwater resource for the region, supporting drinking water, tourism, and a rich aquatic ecosystem. The plant's advanced treatment reduces nutrient and pollutant loads, helping to prevent algal blooms and maintain water quality in this ecologically sensitive lake. The surrounding area includes mountainous terrain and is part of the Rhône basin, which ultimately drains to the Mediterranean Sea.