Montigné-sur-Moine Pont de Moine Wastewater Treatment Plant, Sèvremoine, France

Montigné-sur-Moine Pont de Moine is an advanced wastewater treatment plant located in Sèvremoine, within the Pays de la Loire region of France. The facility serves a population of approximately 2,581 residents and is designed to handle a capacity of 3,783 cubic meters per day. It operates under the French regulatory framework, which implements the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this scale. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. As a small agglomeration (under 10,000 population equivalent), it is subject to EU requirements for secondary treatment, but the advanced level indicates additional nutrient removal or tertiary steps. The plant's discharge volume is 460.45 m³/day, reflecting its operational scale. The treated effluent is released into the local watershed, which ultimately drains into the Loire River basin. The Loire is France's longest river and supports diverse aquatic ecosystems, including migratory fish species. The plant's advanced treatment helps protect downstream water quality in this ecologically significant river system.

The plant discharges into the local watershed within the Loire River basin, one of France's largest and most ecologically important river systems. The Loire flows into the Atlantic Ocean, supporting diverse habitats including wetlands and floodplains that are critical for migratory birds and fish. Advanced treatment at this facility helps reduce nutrient loading, protecting downstream water quality and aquatic life.