PEYREHORADE 2 Wastewater Treatment Plant, Peyrehorade, Nouvelle-Aquitaine

PEYREHORADE 2 is a wastewater treatment facility located in Peyrehorade, a commune in the Landes department of Nouvelle-Aquitaine, southwestern France. The plant serves a population of approximately 2,070 and has a designed capacity of 6,200 cubic meters per day, with an actual discharge volume of 369.28 cubic meters per day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a French facility, it operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment levels based on the sensitivity of receiving waters. For small agglomerations like Peyrehorade, advanced treatment may be mandated if the discharge enters a sensitive area. The treated effluent is discharged into the local watershed, which ultimately drains into the Adour River basin. The Adour River flows through the Landes region and into the Bay of Biscay, part of the Atlantic Ocean. The plant's advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the Adour estuary, an important ecological zone for migratory fish and bird species.

The plant discharges into the Adour River basin, which flows through the Landes region and empties into the Bay of Biscay. The Adour estuary supports diverse aquatic life, including migratory fish such as salmon and eels. Advanced treatment at the plant helps reduce nutrient loads, protecting downstream water quality and the ecological health of the estuary and coastal waters.