VERRIE Le Coudreau Wastewater Treatment Plant, Chanverrie, Pays de la Loire

VERRIE Le Coudreau is a wastewater treatment plant located in the Le Coudreau area of Chanverrie, in the Vendée department of Pays de la Loire, France. The plant serves a population of approximately 2,083 people, classifying it as a small agglomeration under French regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 4,000 m³/day and an average daily discharge volume of 371.60 m³, the plant operates well within its capacity, ensuring effective treatment of local wastewater. The treated effluent is discharged into local waterways that ultimately drain into the Atlantic Ocean via the Vendée River and the Bay of Biscay. The plant plays a key role in protecting the region's water quality, supporting both local ecosystems and downstream coastal environments.

The plant discharges into the local watershed, which flows through the Vendée River and into the Bay of Biscay, part of the Atlantic Ocean. This coastal region supports diverse aquatic life and is an important area for migratory fish species. The advanced treatment helps minimize nutrient and pollutant loads, protecting downstream estuarine and marine habitats.