DANGE SAINT ROMAIN BOURG Wastewater Treatment Plant, Dangé-Saint-Romain, France

DANGE SAINT ROMAIN BOURG is a wastewater treatment plant located in Dangé-Saint-Romain, within the Vienne department of Nouvelle-Aquitaine, France. The plant serves a population of around 22,250, classifying it as a medium-sized agglomeration under EU regulations. It is situated near the Vienne River, a tributary of the Loire, and plays a key role in protecting local water quality. As a French facility serving over 10,000 people, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary biological treatment as a minimum. For agglomerations between 10,000 and 100,000 population equivalent, the directive mandates compliance with effluent standards for biochemical oxygen demand, chemical oxygen demand, and suspended solids. The plant's treatment process and capacity details are not publicly available, but it operates within France's national regulatory framework, which enforces strict discharge limits. The treated effluent is discharged into the local watershed, ultimately flowing into the Vienne River and then the Loire River, which drains into the Atlantic Ocean. This water body supports diverse aquatic life and is an important ecological corridor. The plant's operation helps reduce nutrient and pollutant loads, contributing to the health of downstream ecosystems and meeting the objectives of the EU Water Framework Directive.

The plant discharges into the Vienne River basin, a tributary of the Loire River, which flows into the Atlantic Ocean. The Loire is one of France's longest rivers and supports a rich diversity of fish species, including Atlantic salmon and European eel. The watershed includes agricultural and urban areas, making nutrient management critical to prevent eutrophication. The plant's treatment helps maintain water quality for downstream communities and sensitive habitats.