MONTRY Wastewater Treatment Plant, Montry, France

The MONTRY wastewater treatment plant is located in Montry, a commune in the Seine-et-Marne department of north-central France. The facility serves a population of approximately 2,160 residents, providing advanced treatment to protect local water quality. As part of France's wastewater infrastructure, the plant operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for collection and treatment in agglomerations. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Its designed capacity is 6,100 cubic meters per day, and it currently discharges an average of 385.34 cubic meters per day. The facility is operated as part of the municipal wastewater system, ensuring compliance with national and EU regulations for effluent quality. 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 ecosystems and providing water for agricultural and industrial uses. The plant's advanced treatment helps reduce nutrient loading and protect downstream water quality in this densely populated region.

The MONTRY 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 ecological corridor. Advanced treatment at this plant helps minimize nutrient pollution, which can cause eutrophication in downstream estuaries and coastal waters.