Longué-Jumelles Wastewater Treatment Plant, Pays de la Loire, France

The Longué-Jumelles wastewater treatment plant, located at La Gautraie in Longué-Jumelles, Pays de la Loire, France, serves a population of 3,620. It operates under the French regulatory framework, which implements the EU Urban Waste Water Treatment Directive (91/271/EEC). As a small agglomeration, it is required to provide appropriate treatment to protect the receiving environment. The plant employs advanced treatment processes, ensuring a high level of pollutant removal. With a designed capacity of 5,000 m³/day and an average discharge volume of 645.8 m³/day, the facility operates well below its capacity, indicating room for future growth. The plant's advanced treatment level exceeds the minimum secondary treatment required for agglomerations of this size under the EU directive. The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River, one of France's major rivers. The Loire River supports diverse aquatic ecosystems and is a vital water resource for the region. The plant's advanced treatment helps protect downstream water quality and ecological health.

The plant discharges into the Loire River basin, which flows through the Pays de la Loire region and eventually reaches the Atlantic Ocean. The Loire River is ecologically significant, supporting diverse fish populations and migratory species. The advanced treatment at this plant helps minimize nutrient and pollutant loads, contributing to the ecological health of the river and its estuary.