Overview
LE BIOT Couvaloup is a secondary wastewater treatment plant in Le Biot, Auvergne-Rhône-Alpes, France. It serves approximately 3,603 people with a designed capacity of 3,800 m³/day and discharges 642.77 m³/day.
LE BIOT Couvaloup is a municipal wastewater treatment plant located in Le Biot, a commune in the Haute-Savoie department of the Auvergne-Rhône-Alpes region in southeastern France. The plant serves a population of about 3,603 and is situated in the Alpine foothills near the Swiss border. The plant provides secondary treatment, which is the standard biological treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,800 m³/day and an average daily flow of 642.77 m³/day, the facility 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 Dranse River and then into Lake Geneva (Lac Léman), one of Europe's largest freshwater lakes. The lake is ecologically sensitive, supporting diverse aquatic life and serving as a critical drinking water source for the region. The plant's secondary treatment helps protect this important water body from nutrient pollution.
Environmental context
The plant discharges into the local watershed that feeds the Dranse River, a tributary of Lake Geneva (Lac Léman). Lake Geneva is a large, deep alpine lake with significant ecological value, supporting fish species such as Arctic char and whitefish, and providing drinking water for millions. The secondary treatment process reduces organic pollutants and helps prevent eutrophication in the lake, which is sensitive to nutrient inputs from surrounding urban and agricultural areas.
Frequently asked questions
LE BIOT Couvaloup is located in Le Biot, a commune in the Haute-Savoie department of the Auvergne-Rhône-Alpes region in southeastern France, near the Swiss border.
The plant serves approximately 3,603 people, classifying it as a small to medium agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into the local watershed, which flows into the Dranse River and ultimately into Lake Geneva (Lac Léman), a major alpine lake.
The plant provides secondary treatment, which is the minimum required by the EU Urban Waste Water Treatment Directive for agglomerations of this size, ensuring effective removal of organic matter.
As a French wastewater treatment plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into French law, which sets standards for collection, treatment, and discharge.
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