CHATEAUNEUF DE GADAGNE Wastewater Treatment Plant, Châteauneuf-de-Gadagne, France

The CHATEAUNEUF DE GADAGNE wastewater treatment plant is located in Châteauneuf-de-Gadagne, a commune in the Vaucluse department of Provence-Alpes-Côte d'Azur, France. It serves a population of approximately 2,400 residents, making it a small agglomeration under French and EU classification. 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 3,600 m³/day and an average daily discharge of 428.16 m³, the facility operates well within its capacity, ensuring effective treatment of wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Rhône River via the Durance or Ouvèze tributaries. The Rhône flows into the Mediterranean Sea, making the plant's advanced treatment important for protecting downstream aquatic ecosystems and coastal water quality.

The plant discharges into the local watershed, which feeds into the Rhône River basin. The Rhône is a major European river that empties into the Mediterranean Sea, supporting diverse aquatic life and important migratory fish species. Advanced treatment at this plant helps reduce nutrient loading and protect the ecological health of the river and its delta.