LEXY_54 Wastewater Treatment Plant, Cosnes-et-Romain, Grand Est

LEXY_54 is an advanced wastewater treatment plant located in Cosnes-et-Romain, in the Grand Est region of France. It serves a population of approximately 2,350 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated inland, away from coastal areas, and operates within the Meurthe-et-Moselle department. The plant provides advanced treatment, which goes beyond the secondary treatment standard required by the EU UWWTD for agglomerations of this size. With a designed capacity of 4,000 m³/day and an average discharge volume of 419.24 m³/day, the facility operates well below its capacity, indicating room for future growth. As a French municipal plant, it is subject to national regulations implementing the EU directive, including permits issued by the local water agency. The treated effluent is discharged into a local watercourse that ultimately drains into the Meurthe River, a tributary of the Moselle River, which flows into the Rhine River and eventually the North Sea. The plant plays a key role in protecting the local watershed and downstream aquatic ecosystems from nutrient pollution and other contaminants.

The plant discharges into a local stream that feeds into the Meurthe River, a tributary of the Moselle River, which joins the Rhine River and flows to the North Sea. The watershed supports diverse aquatic life and is important for regional biodiversity. Advanced treatment helps reduce nutrient loads, protecting downstream water quality in the Rhine basin.