Beautiran 2 Wastewater Treatment Plant, Beautiran, Nouvelle-Aquitaine, France

Beautiran 2 is an advanced wastewater treatment plant located in the commune of Beautiran, within the Gironde department of Nouvelle-Aquitaine, France. The facility serves a population of approximately 2,070 residents and is part of the regional wastewater infrastructure managed by local authorities. Its location near the Garonne River places it within a sensitive watershed that ultimately drains into the Atlantic Ocean. 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 2,500 m³/day and a current discharge volume of 369.28 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The advanced treatment level ensures high-quality effluent that meets stringent environmental standards. The treated wastewater is discharged into the local water system, which flows into the Garonne River and eventually reaches the Gironde estuary and the Bay of Biscay. This water body supports diverse aquatic life and is an important ecological corridor for migratory fish species. The plant's advanced treatment helps protect downstream water quality and the sensitive estuarine environment.

The plant discharges into the Garonne River basin, which flows through southwestern France into the Gironde estuary and then the Bay of Biscay (Atlantic Ocean). This watershed supports diverse aquatic ecosystems, including migratory fish such as salmon and eels. The advanced treatment at Beautiran 2 reduces nutrient and pollutant loads, helping to protect the estuarine environment from eutrophication and maintaining water quality for downstream communities and habitats.