BERNEX Wastewater Treatment Plant, Bernex, Auvergne-Rhône-Alpes, France

BERNEX is a wastewater treatment plant located in Bernex, a commune in the Haute-Savoie department of the Auvergne-Rhône-Alpes region in France. The plant serves a population of 1,860 and operates with advanced treatment processes, ensuring high-quality effluent. Its designed capacity is 4,000 m³/day, with a current discharge volume of 331.82 m³/day, indicating significant spare capacity. As a French plant, BERNEX operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for discharges into sensitive areas. Given its proximity to the coast, the plant likely meets stringent standards to protect marine environments. The advanced treatment level suggests nutrient removal, which is critical for preventing eutrophication in coastal waters. The plant discharges into a receiving water body that ultimately drains into Lake Geneva (Lac Léman), one of the largest freshwater lakes in Europe. Lake Geneva is a vital ecological and recreational resource, supporting diverse aquatic life and serving as a drinking water source for millions. The plant's advanced treatment helps maintain the lake's water quality and ecological balance.

BERNEX discharges into a watercourse that flows into Lake Geneva (Lac Léman), a major Alpine lake that drains via the Rhône River into the Mediterranean Sea. Lake Geneva is ecologically sensitive, supporting endemic fish species and serving as a critical stopover for migratory birds. The plant's advanced treatment reduces nutrient loads, protecting the lake from eutrophication and preserving its biodiversity.