MONTOY FLANVILLE Wastewater Treatment Plant, Ogy-Montoy-Flanville, Grand Est

MONTOY FLANVILLE is an advanced wastewater treatment plant located in Ogy-Montoy-Flanville, in the Grand Est region of France. The plant serves a population of approximately 3,000 residents, operating as part of the municipal wastewater infrastructure for the commune. Its designed capacity is 5,080 m³/day, with an average daily discharge volume of 535.19 m³/day. As an advanced treatment facility, MONTOY FLANVILLE goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent effluent quality standards. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), France requires appropriate treatment for agglomerations of this size, and advanced treatment is often mandated in sensitive areas to protect receiving water bodies. The treated effluent is discharged into local waterways that drain into the Moselle River basin, ultimately flowing into the Rhine River and the North Sea. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream aquatic environments.

The plant discharges into the Moselle River basin, a tributary of the Rhine River, which flows through Germany and the Netherlands before reaching the North Sea. The Moselle supports diverse aquatic life and is an important corridor for migratory fish. Advanced treatment at this plant helps reduce nutrient loading, protecting downstream ecosystems from eutrophication and maintaining water quality for both ecological and human uses.