Chauconin-Neufmontiers Wastewater Treatment Plant, Seine-et-Marne, France

The Chauconin-Neufmontiers wastewater treatment plant is located in the commune of Chauconin-Neufmontiers, within the Seine-et-Marne department of the Île-de-France region. This facility serves a population of approximately 1,381 residents and operates as part of the municipal wastewater infrastructure for the area. 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 2,600 m³/day and a current discharge volume of 246.37 m³/day, the facility has ample capacity to handle current loads. Advanced treatment typically includes nutrient removal to protect sensitive receiving waters. The treated effluent is discharged into the local watershed, which ultimately drains into the Seine River basin. The Seine River flows through Paris and into the English Channel, supporting diverse aquatic life and providing water for agriculture and recreation. The plant's advanced treatment helps protect downstream water quality in this ecologically and economically important river system.

The plant discharges into the Seine River basin, which flows through the Île-de-France region and eventually reaches the English Channel. The Seine supports a variety of fish species and is an important migratory corridor for eels and salmon. Advanced treatment at this plant helps reduce nutrient loads that could otherwise contribute to eutrophication in downstream waters, including the Seine estuary and the marine environment.