CHAIZE LE VICOMTE les Noyers Wastewater Treatment Plant, La Chaize-le-Vicomte, France

CHAIZE LE VICOMTE les Noyers is a municipal wastewater treatment plant located in the industrial zone of La Folie, Les Noyers, in La Chaize-le-Vicomte, Vendee, Pays de la Loire, France. The plant serves a population of approximately 1,867 and is part of the region's wastewater infrastructure, operating under French regulations that implement the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant provides secondary treatment, which is the standard level required for agglomerations of this size under the EU directive. It has a designed capacity of 4,100 cubic meters per day and currently discharges an average volume of 333 cubic meters per day, indicating ample reserve capacity. The facility is situated inland, more than 10 km from the coast, reducing direct marine discharge risk. Treated effluent from the plant is released into the local water network, which ultimately drains into the Atlantic Ocean via the Vendee River system. The plant plays a key role in protecting the region's water quality, supporting both ecological health and downstream uses such as agriculture and recreation.

The plant discharges into the local watershed within the Vendee River basin, which flows into the Bay of Biscay, part of the Atlantic Ocean. This coastal region supports diverse aquatic life and is important for migratory fish species. The secondary treatment process helps reduce organic pollutants and suspended solids, mitigating eutrophication risks in downstream waters.