SAINT SOUPPLETS Wastewater Treatment Plant - Saint-Soupplets, Île-de-France

The SAINT SOUPPLETS wastewater treatment plant is located in Saint-Soupplets, a commune in the Seine-et-Marne department of Île-de-France, France. The plant serves a population of approximately 3,630 residents and is part of the region's municipal wastewater infrastructure. 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 5,900 m³/day and a current discharge volume of 647.59 m³/day, the facility operates well within its capacity. The treated effluent is discharged into local waterways that ultimately drain into the Seine River basin. The Seine River flows through Paris and into the English Channel, supporting diverse aquatic ecosystems and providing water for agricultural and industrial uses downstream.

The plant discharges into the Seine River basin, which flows through Île-de-France and eventually reaches the English Channel. The Seine supports a variety of fish species and is an important migratory corridor for eels and salmon. Downstream, the estuary provides critical habitat for birds and marine life.