Angles Route de la Tranche sur mer Wastewater Treatment Plant, Moricq, France

The Angles Route de la Tranche sur mer wastewater treatment plant is located in Moricq, a locality within the commune of Angles in the Vendée department of Pays de la Loire, France. The plant serves a population of 4,550 and is situated near the Atlantic coast, less than 10 km from the shoreline. 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. With a designed capacity of 4,500 m³/day and an actual discharge volume of 811.71 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the coastal zone of the Vendée. This region supports diverse marine and coastal ecosystems, including salt marshes and estuaries that are important for migratory birds and aquatic life. The plant's advanced treatment helps protect these sensitive environments from nutrient pollution and other contaminants.

The plant discharges into the coastal watershed of the Vendée, which flows into the Bay of Biscay in the Atlantic Ocean. This area features salt marshes, mudflats, and estuaries that provide critical habitat for migratory birds, fish, and shellfish. The advanced treatment level reduces nutrient loads, helping to prevent eutrophication in these ecologically sensitive coastal waters.