DORDIVES Wastewater Treatment Plant, Château-Landon, France

The DORDIVES wastewater treatment plant is located near Château-Landon in the Seine-et-Marne department of north-central France. It serves a population of approximately 2,913 people and operates with advanced treatment processes, ensuring high-quality effluent before discharge. As an advanced treatment facility, DORDIVES goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent French and EU standards. The plant has a designed capacity of 4,500 m³/day and currently treats an average of 519.67 m³/day, indicating significant reserve capacity for future growth. The treated effluent 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 agriculture and recreation. Advanced treatment helps protect downstream water quality and ecological health.

The plant discharges into the Seine River basin, which flows northward through the Île-de-France region and into the English Channel. The Seine supports a variety of fish species and is an important migratory corridor for eels and salmon. Advanced treatment at DORDIVES reduces nutrient loading, helping to prevent eutrophication in downstream waters and the coastal zone.