MONTS L Ormeau Fleury Wastewater Treatment Plant, Monts, Centre-Val de Loire

MONTS L Ormeau Fleury is a wastewater treatment plant located in Monts, within the Centre-Val de Loire region of France. The facility serves a population of approximately 3,988 and is designed with a capacity of 12,000 m³/day, indicating it is sized to accommodate future growth or seasonal variations. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. As a French facility, it operates under national regulations that transpose EU directives, with permits issued by the local water agency (Agence de l'Eau). The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River, one of France's major rivers. The Loire basin supports diverse aquatic ecosystems and is an important corridor for migratory fish. The plant's advanced treatment helps reduce nutrient loading, contributing to the ecological health of the Loire and its downstream estuary.

The plant discharges into the Loire River basin, which flows through central France before reaching the Atlantic Ocean. The Loire is known for its rich biodiversity, including species such as Atlantic salmon and European eel. Advanced treatment at this plant helps minimize nutrient pollution, supporting the river's ecological balance and downstream water quality.