Bayonne Pont de l'aveugle Wastewater Treatment Plant, Anglet, Nouvelle-Aquitaine

Bayonne Pont de l'aveugle is a wastewater treatment plant located in Anglet, part of the Bayonne urban area in the Pyrénées-Atlantiques department of Nouvelle-Aquitaine, France. The plant serves a population equivalent of 102,517, classifying it as a large agglomeration under EU regulations. As a facility of this scale in France, the plant is required to meet the standards of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment as a minimum, with tertiary treatment in sensitive areas. The designed capacity is 1.00 (likely in cubic meters per day or similar unit), indicating the plant's infrastructure is sized for the served population. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Bay of Biscay via the Adour River. The Adour estuary supports diverse aquatic life and is an important ecological corridor for migratory fish species. The plant's location within 50 km of the coast underscores the need for effective nutrient removal to protect coastal water quality.

The plant's treated effluent enters the Adour River, which flows through Bayonne and into the Bay of Biscay, part of the Atlantic Ocean. The Adour estuary is ecologically sensitive, supporting diverse aquatic life and serving as a migratory corridor for species such as salmon and eel. Nutrient management is critical to prevent eutrophication in the coastal zone.