TORFOU LE BOURG Wastewater Treatment Plant, Sèvremoine, France

TORFOU LE BOURG is a wastewater treatment facility located in the commune of Sèvremoine, within the Maine-et-Loire department of Pays de la Loire, France. The plant serves a population of 1,733 and has a designed capacity of 2,700 m³/day, with an actual discharge volume of 309.16 m³/day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), French agglomerations of this size are required to provide secondary treatment, but the advanced level here indicates compliance with more stringent standards, likely due to the sensitivity of the receiving environment. The treated effluent is discharged into local watercourses that eventually flow into the Loire River basin. The Loire is the longest river in France and supports diverse aquatic ecosystems, including migratory fish species. The plant's advanced treatment helps protect downstream water quality in this ecologically significant watershed.

The plant discharges into local streams that feed into the Loire River, which flows into the Atlantic Ocean. The Loire basin supports a variety of aquatic life, including Atlantic salmon and European eel, and is an important migratory corridor. Advanced treatment at this plant reduces nutrient loading, helping to prevent eutrophication in downstream waters.