Arnac-Pompadour 2 Wastewater Treatment Plant - Nouvelle-Aquitaine, France

Arnac-Pompadour 2 is a municipal wastewater treatment plant located in Arnac-Pompadour, a commune in the Corrèze department of Nouvelle-Aquitaine, France. The plant serves a population of approximately 2,080 and operates with secondary treatment, which is the standard for small agglomerations under French and EU regulations. As a secondary treatment facility, the plant uses biological processes to remove organic matter and suspended solids. Its designed capacity is 3,800 m³/day, with an average daily discharge of 371 m³, indicating ample reserve capacity. The plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations above 2,000 population equivalent. The treated effluent is discharged into a local watercourse that flows into the Vézère River, a tributary of the Dordogne. The Dordogne River ultimately reaches the Atlantic Ocean via the Gironde estuary. The plant plays a key role in protecting the water quality of the Vézère and Dordogne watersheds, which support diverse aquatic life and are important for regional ecology.

The plant discharges into a small stream that feeds the Vézère River, a major tributary of the Dordogne. The Dordogne basin is ecologically sensitive, supporting species such as Atlantic salmon and European otter. Downstream, the river flows into the Gironde estuary, a critical habitat for migratory fish and birds. The plant's secondary treatment helps reduce nutrient and organic pollution, safeguarding water quality in this important watershed.