GOVEN Wastewater Treatment Plant, Goven, Bretagne, France

The GOVEN wastewater treatment plant is located in the commune of Goven, within the Ille-et-Vilaine department of Bretagne, France. It serves a population of approximately 2,100 residents, classifying it as a small agglomeration under French and EU regulations. The plant is situated inland, away from coastal zones, and its operations are part of the region's municipal wastewater 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 2,500 m³/day and an actual discharge volume of 374.64 m³/day, the facility operates well below its capacity, indicating potential for future growth or seasonal variations. The plant's advanced treatment likely includes nutrient removal, which is important for protecting sensitive receiving waters. The treated effluent is discharged into local watercourses that ultimately drain into the Vilaine River basin. The Vilaine River flows through Bretagne and into the Atlantic Ocean via the Morbihan Gulf. The region's aquatic ecosystems support diverse species, including migratory fish such as salmon and eels. The advanced treatment helps minimize nutrient loading and protects downstream water quality.

The GOVEN plant discharges into the local hydrographic network that feeds the Vilaine River, which flows approximately 225 km through Bretagne before emptying into the Atlantic Ocean near Pénestin. The Vilaine basin supports a variety of freshwater habitats and is an important corridor for migratory fish species. Advanced treatment at the plant reduces the risk of eutrophication in downstream rivers and coastal waters, contributing to the ecological health of the region.