Liffol-le-Grand Wastewater Treatment Plant, Grand Est, France

The Liffol-le-Grand wastewater treatment plant is located in the Vosges department of the Grand Est region, France. It serves a population of approximately 3,380 residents in the commune of Liffol-le-Grand and surrounding areas. The plant is situated on Chemin de la Queue des Taureaux, near the local water infrastructure. The facility provides advanced treatment, which goes 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 3,500 m³/day and an average daily discharge of 603 m³/day, the plant operates well within its capacity. Advanced treatment typically includes nutrient removal to protect sensitive receiving waters. The treated effluent is discharged into local watercourses that drain into the Meuse River basin, ultimately flowing toward the North Sea. The plant plays a key role in protecting the region's water quality, supporting aquatic ecosystems, and meeting the requirements of the EU Water Framework Directive for good ecological status.

The plant discharges into the local watershed, which is part of the Meuse River basin. The Meuse flows through France, Belgium, and the Netherlands before reaching the North Sea. This region features mixed agricultural and forested landscapes, and the receiving waters support diverse aquatic life. The advanced treatment helps reduce nutrient loads, preventing eutrophication downstream and maintaining ecological balance in the river system.