PONTONX SUR ADOUR 2 Wastewater Treatment Plant, Gousse, France

PONTONX SUR ADOUR 2 is an advanced wastewater treatment plant located in Gousse, a commune in the Landes department of Nouvelle-Aquitaine, France. The plant serves a population of approximately 2,220 people and is part of the region's municipal wastewater infrastructure. Its location near the Adour River places it within a sensitive river basin that ultimately drains into the Bay of Biscay. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,583 cubic meters per day and a current discharge volume of 396 cubic meters per day, the facility operates well within its capacity, ensuring effective treatment of wastewater. The treated effluent is discharged into the local watercourse, contributing to the protection of the Adour River and its downstream ecosystems. The Adour River flows through the Landes region and into the Atlantic Ocean, supporting diverse aquatic life and providing water for agricultural and recreational uses. The plant's advanced treatment helps minimize nutrient loading and protects the ecological health of the river and coastal waters.

The plant discharges into the Adour River basin, which flows through southwestern France and empties into the Bay of Biscay. The Adour River supports a variety of fish species, including migratory salmon and eels, and its estuary is an important habitat for birds. Advanced treatment at this plant helps reduce nutrient pollution, safeguarding the river's ecological balance and the downstream marine environment.