CHOUZY SUR CISSE Wastewater Treatment Plant, Valloire-sur-Cisse, France

CHOUZY SUR CISSE is an advanced wastewater treatment plant located in Valloire-sur-Cisse, a commune in the Loir-et-Cher department of Centre-Val de Loire, France. The plant serves a population of approximately 3,626, reflecting its role in managing municipal wastewater for this small agglomeration in the Loire Valley. 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 1,820 m³/day and a current discharge volume of 646.87 m³/day, the facility operates well within its capacity, ensuring effective treatment of wastewater before discharge. The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River, one of France's major rivers. The Loire Valley is a region of significant ecological and cultural importance, supporting diverse aquatic life and agricultural activities. The plant's advanced treatment helps protect the water quality of the Loire River and its downstream environments.

The plant discharges treated wastewater into the local water system, which flows into the Loire River, the longest river in France. The Loire River basin supports a rich diversity of fish species, including Atlantic salmon and European eel, and its floodplains are important for migratory birds. The advanced treatment at CHOUZY SUR CISSE helps minimize nutrient loading and protect the ecological health of the Loire River and its estuary, which empties into the Bay of Biscay.