SAINTE TULLE Moulins Wastewater Treatment Plant, Sainte-Tulle, France

SAINTE TULLE Moulins is a municipal wastewater treatment plant located in Sainte-Tulle, a commune in the Alpes-de-Haute-Provence department of the Provence-Alpes-Côte d'Azur region, France. The plant serves a population of approximately 2,280 residents and is situated inland, away from coastal areas. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 2,700 m³/day and a current discharge volume of 406.75 m³/day, the plant operates well within its capacity, ensuring effective treatment of domestic wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Durance River, a major tributary of the Rhône River. The Rhône flows into the Mediterranean Sea. The plant plays a key role in protecting the water quality of the Durance and Rhône rivers, supporting aquatic life and downstream ecosystems.

The plant discharges into the Durance River basin, which flows into the Rhône River and then the Mediterranean Sea. The Durance is an ecologically important river supporting diverse aquatic species and providing water for agriculture. The plant's secondary treatment helps reduce nutrient loads and organic pollution, protecting downstream water quality and the sensitive coastal environment of the Mediterranean.