STENAY Wastewater Treatment Plant, Stenay, Grand Est, France

The STENAY wastewater treatment plant is located in Stenay, a commune in the Meuse department of the Grand Est region, France. It serves a population of approximately 4,841 residents, classifying it as a small agglomeration under French and EU regulations. The plant is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 7,500 m³/day and a current discharge volume of 863.63 m³/day, the facility has ample capacity to handle current loads. The advanced treatment level indicates that the plant likely includes nutrient removal or other tertiary processes to protect sensitive receiving waters. The treated effluent from STENAY is discharged into local watercourses that ultimately drain into the Meuse River basin. The Meuse River flows through France, Belgium, and the Netherlands before reaching the North Sea. The plant's advanced treatment helps protect the ecological health of the Meuse basin, which supports diverse aquatic life and is used for drinking water abstraction and recreation downstream.

The STENAY plant discharges into the Meuse River basin, which flows northward through the Grand Est region and eventually into the North Sea via the Netherlands. The Meuse is an important ecological corridor for fish migration and supports diverse freshwater habitats. Advanced treatment at this plant helps reduce nutrient loading and protects water quality in the river, which is used for drinking water supply and supports sensitive aquatic ecosystems downstream.