Overview
CHAZELLE SUR LYON La Gare de Viricelles is a wastewater treatment plant serving about 8,970 people in Viricelles, Auvergne-Rhône-Alpes, France. It operates under the EU Urban Waste Water Treatment Directive.
CHAZELLE SUR LYON La Gare de Viricelles is a wastewater treatment plant located in Viricelles, a commune in the Loire department of Auvergne-Rhône-Alpes, France. The plant serves a population equivalent of approximately 8,970, classifying it as a medium-sized agglomeration under French and EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide secondary treatment as a minimum. The regulatory framework ensures compliance with national standards for effluent quality. The plant discharges treated water into the local watershed, which ultimately drains into the Loire River and then into the Atlantic Ocean. The Loire basin is ecologically significant, supporting diverse aquatic life and serving as a critical corridor for migratory fish species.
Environmental context
The plant's treated effluent enters the local watercourse, which flows into the Loire River, one of France's longest rivers. The Loire basin is known for its rich biodiversity, including populations of Atlantic salmon and European eel. Downstream, the river reaches the Atlantic Ocean, where nutrient inputs from wastewater can affect coastal ecosystems. The plant's location inland reduces direct marine impact, but its discharge contributes to the overall nutrient load in the Loire watershed.
Frequently asked questions
The plant is located in Viricelles, a commune in the Loire department of the Auvergne-Rhône-Alpes region, France.
The plant serves approximately 8,970 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated wastewater is discharged into the local watercourse, which flows into the Loire River and eventually reaches the Atlantic Ocean.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
For agglomerations between 2,000 and 10,000 population equivalent, French regulations mandate secondary treatment, often involving biological processes to reduce organic matter and suspended solids.
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