Barbizon Wastewater Treatment Plant, Seine-et-Marne, France

The Barbizon wastewater treatment plant is located in the commune of Barbizon, within the Seine-et-Marne department of the Île-de-France region. This facility serves a population of approximately 1,839 residents and operates under France's national water regulations, which implement the EU Urban Waste Water Treatment Directive (91/271/EEC). As a small agglomeration, it is subject to appropriate treatment requirements to protect the local environment. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. It has a design capacity of 3,800 cubic meters per day and currently treats an average daily flow of 328 cubic meters, indicating ample reserve capacity. The facility's performance is overseen by the relevant French water authority, which issues permits and monitors compliance with discharge standards. Treated effluent from the Barbizon plant is discharged into the local watershed, which ultimately drains into the Seine River basin. The Seine flows through Paris and into the English Channel, supporting diverse aquatic ecosystems and providing water for agricultural and industrial use. The advanced treatment helps protect downstream water quality and the ecological health of the Seine estuary.

The Barbizon 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 loading and protects the sensitive estuarine environment downstream.