CHASSENEUIL DU POITOU Wastewater Treatment Plant, Chasseneuil-du-Poitou, France

The CHASSENEUIL DU POITOU wastewater treatment plant is located in Chasseneuil-du-Poitou, a commune in the Vienne department of Nouvelle-Aquitaine, France. The facility serves a population of approximately 6,683 people, classifying it as a small agglomeration under EU regulations. The plant is part of the municipal wastewater infrastructure managed by the local authority. As a French treatment plant serving fewer than 10,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment based on the receiving water body's sensitivity. For small agglomerations, secondary treatment is typically mandated unless the discharge is into sensitive areas that may require more advanced treatment. It complies with national regulations derived from the directive. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Clain River, a tributary of the Vienne River. The Vienne River flows into the Loire River, one of France's major waterways, before reaching the Atlantic Ocean. The plant plays a role in protecting the water quality of these rivers and the downstream environment, supporting aquatic life and recreational uses.

The plant's treated effluent enters the Clain River, which flows through Poitiers and joins the Vienne River. The Vienne River is a significant tributary of the Loire River, which empties into the Bay of Biscay (Atlantic Ocean). The Loire basin supports diverse aquatic ecosystems, including migratory fish species such as Atlantic salmon and European eel. The plant's operations help maintain water quality in this ecologically important river system, which is also used for agriculture and recreation.