Overview
Lanslebourg wastewater treatment plant serves Val-Cenis in the French Alps, Auvergne-Rhône-Alpes. It treats wastewater from approximately 12,583 people under the EU Urban Waste Water Treatment Directive.
The Lanslebourg wastewater treatment plant is located in Val-Cenis, a commune in the Savoie department of the Auvergne-Rhône-Alpes region in southeastern France. Situated in the Maurienne valley of the French Alps, the plant serves a population of about 12,583 people, primarily from the ski resort area of Lanslebourg-Mont-Cenis. As a French wastewater facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The regulatory framework ensures compliance with European standards for wastewater treatment in alpine environments. The treated effluent is discharged into the local watershed, which drains into the Arc River, a tributary of the Isère River, and ultimately into the Rhône River and the Mediterranean Sea. The plant plays a crucial role in protecting the sensitive alpine ecosystem and downstream water quality in the Rhône basin.
Environmental context
The plant discharges into the Arc River, which flows through the Maurienne valley and joins the Isère River near Albertville. The Isère then flows into the Rhône River, which empties into the Mediterranean Sea. The alpine watershed supports diverse aquatic life and is an important corridor for migratory fish species. The plant's operation helps maintain water quality in this ecologically sensitive region, which experiences seasonal tourism pressure.
Frequently asked questions
The plant is located in Val-Cenis, in the Savoie department of the Auvergne-Rhône-Alpes region in southeastern France, near the ski resort of Lanslebourg-Mont-Cenis.
The plant serves approximately 12,583 people, primarily from the Lanslebourg-Mont-Cenis area and the broader Val-Cenis commune.
The treated effluent is discharged into the local watershed, which flows into the Arc River, a tributary of the Isère River, and eventually into the Rhône River and the Mediterranean Sea.
As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size and sets standards for discharge quality.
Under the EU UWWTD, plants serving between 10,000 and 150,000 population equivalents typically require secondary treatment (biological treatment) to reduce organic matter and suspended solids, with possible tertiary treatment in sensitive areas.
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