VIMOUTIERS Wastewater Treatment Plant, Vimoutiers, Normandy, France

The VIMOUTIERS wastewater treatment plant is located in Vimoutiers, a commune in the Orne department of Normandy, France. It serves a population of approximately 4,705 residents, placing it in the small-to-medium agglomeration category under French and EU regulations. The plant is situated inland, more than 10 km from the coast, and its operations are part of the regional water management infrastructure. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 5,470 m³/day and an average daily discharge of 839.36 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The advanced treatment likely includes nutrient removal to protect sensitive receiving waters. The treated effluent is discharged into local watercourses that ultimately drain into the English Channel via the Touques River or other coastal rivers. The Normandy region is known for its agricultural landscape and sensitive aquatic ecosystems, making advanced treatment important for protecting downstream water quality and biodiversity.

The plant discharges into the local river system, which flows through the Orne department and eventually reaches the English Channel. The downstream environment includes the Touques River basin and coastal estuaries that support diverse aquatic life, including migratory fish species. Advanced treatment helps reduce nutrient loading, which is critical for preventing eutrophication in the Channel's coastal waters.