SAULCY SUR MEURTHE Wastewater Treatment Plant, Saulcy-sur-Meurthe, France

SAULCY SUR MEURTHE is a municipal wastewater treatment plant located in Saulcy-sur-Meurthe, a commune in the Vosges department of the Grand Est region in northeastern France. The plant serves a population of about 7,740 residents, placing it in the category of small to medium agglomerations under French and EU regulations. As a French wastewater facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size discharging into freshwater. Typical plants serving similar populations in the Vosges region employ biological treatment with activated sludge or similar secondary processes. The treated effluent is discharged into the local watershed, which drains into the Meurthe River, a tributary of the Moselle River. The Moselle flows into the Rhine, ultimately reaching the North Sea. The plant plays a key role in protecting the Meurthe River and downstream aquatic ecosystems from nutrient pollution and organic loads.

The plant discharges into the Meurthe River, which flows through the Vosges mountains before joining the Moselle River near Nancy. The Moselle then enters Germany and merges with the Rhine, which empties into the North Sea. The watershed supports diverse aquatic life, including fish species such as brown trout and grayling, and is an important corridor for migratory fish. The plant's treatment helps maintain water quality in this ecologically sensitive river system.