SINESTEP RUILLE LA CHARTRE Wastewater Treatment Plant, Loir en Vallée, Pays de la Loire

SINESTEP RUILLE LA CHARTRE is an advanced wastewater treatment plant located in Loir en Vallée, in the Pays de la Loire region of France. The plant serves a population of approximately 2,500 people, reflecting its role as a small-scale municipal facility in the Sarthe department. The plant operates with advanced treatment technology, which goes 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 4,500 m³/day and an average discharge volume of 446 m³/day, the plant has significant spare capacity to accommodate future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Loir River, a tributary of the Sarthe River, and then into the Loire River. The Loire basin is ecologically significant, supporting diverse aquatic life and providing water for agriculture and recreation. The plant's advanced treatment helps protect downstream water quality in this sensitive river system.

The plant discharges into the Loir River basin, which flows into the Sarthe River and then the Loire River, one of France's major watercourses. The Loire watershed supports a rich diversity of fish species and is an important migratory corridor for Atlantic salmon and European eel. Advanced treatment at this plant helps reduce nutrient loading and protects the ecological health of these downstream waters.