Overview
ST JEAN de SIXT La CLUSAZ wastewater treatment plant serves Saint-Jean-de-Sixt in Auvergne-Rhône-Alpes, France. It treats wastewater for approximately 37,891 people under EU regulatory standards.
ST JEAN de SIXT La CLUSAZ is a municipal wastewater treatment plant located in Saint-Jean-de-Sixt, a commune in the Haute-Savoie department of the Auvergne-Rhône-Alpes region, France. The plant serves a population of approximately 37,891, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). As a French facility, the plant operates under the EU UWWTD (91/271/EEC), which requires secondary treatment for agglomerations of this size. French regulations mandate compliance with national water quality standards, and the plant is subject to oversight by the local water agency (Agence de l'Eau). The plant discharges treated effluent into the local watershed, which ultimately drains into the Fier River and then into Lake Geneva (Lac Léman), a major Alpine lake. The receiving waters support diverse aquatic life and are important for regional biodiversity and tourism. The plant plays a key role in protecting the sensitive Alpine environment from nutrient pollution.
Environmental context
The plant's treated effluent flows into the Fier River, a tributary of the Rhône River, which eventually reaches Lake Geneva (Lac Léman), one of Europe's largest freshwater lakes. Lake Geneva is ecologically sensitive, supporting diverse fish species and serving as a critical water resource for the region. The Alpine watershed is vulnerable to nutrient enrichment, making effective wastewater treatment essential for preserving water quality and aquatic habitats.
Frequently asked questions
The plant is located in Saint-Jean-de-Sixt, a commune in the Haute-Savoie department of the Auvergne-Rhône-Alpes region, France. Its address is Route du Bois de l'Envers, 74450 Saint-Jean-de-Sixt.
The plant serves approximately 37,891 people, classifying it as a medium-sized agglomeration under EU regulations.
The plant discharges treated effluent into the local watershed, which flows into the Fier River and eventually reaches Lake Geneva (Lac Léman).
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. French national regulations and the local water agency (Agence de l'Eau) oversee compliance.
Under the EU UWWTD, plants serving between 10,000 and 100,000 population equivalent are required to have secondary treatment (biological treatment). In sensitive areas, tertiary treatment for nutrient removal may also be required.
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