Overview
ST ETIENNE DES OULLIERES wastewater treatment plant serves Saint-Étienne-des-Oullières in Auvergne-Rhône-Alpes, France. It treats wastewater for approximately 19,666 people under the EU Urban Waste Water Treatment Directive.
ST ETIENNE DES OULLIERES is a wastewater treatment plant located in Saint-Étienne-des-Oullières, a commune in the Rhône department of Auvergne-Rhône-Alpes, France. The plant serves a population of approximately 19,666, classifying it as a medium-sized agglomeration under French and EU regulations. As a French 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 directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. The regulatory framework ensures compliance with national and EU standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Saône River, a major tributary of the Rhône. The Rhône flows into the Mediterranean Sea, making the plant's operations important for downstream water quality and the ecological health of the Rhône basin.
Environmental context
The plant discharges into the local water system that feeds the Saône River, a key tributary of the Rhône. The Rhône basin supports diverse aquatic life and is an important migratory corridor for fish species. The Mediterranean Sea, the final destination, is a semi-enclosed sea sensitive to nutrient inputs, making effective wastewater treatment crucial for preventing eutrophication and protecting marine ecosystems.
Frequently asked questions
The plant is located at 2088 Route de Buyon, Saint-Étienne-des-Oullières, in the Rhône department of Auvergne-Rhône-Alpes, France.
The plant serves approximately 19,666 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the local watershed, which flows into the Saône River and eventually the Rhône River, reaching the Mediterranean Sea.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size and may require tertiary treatment if the receiving waters are sensitive.
Under the EU UWWTD, plants serving between 10,000 and 100,000 people typically require secondary treatment. In sensitive areas, additional nutrient removal may be mandated to protect water quality.
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