Le Crotoy Wastewater Treatment Plant - Hauts-de-France, France

The Le Crotoy wastewater treatment plant is located in the commune of Le Crotoy, in the Somme department of Hauts-de-France, France. It serves a population of approximately 4,850 and operates with advanced treatment processes, reflecting the high environmental standards required for coastal communities in the region. With a designed capacity of 20,000 m³/day and an average discharge volume of 865 m³/day, the plant has significant reserve capacity. As a facility in France, it operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for discharges into sensitive areas and coastal waters. The plant's treated effluent is discharged into the Baie de Somme, a major estuary on the English Channel. This area is ecologically sensitive, supporting diverse birdlife and marine habitats. The discharge ultimately reaches the English Channel, contributing to the overall water quality management of this important coastal region.

The plant discharges into the Baie de Somme, a large estuary that flows into the English Channel. This coastal environment supports rich biodiversity, including migratory birds and marine species. The advanced treatment helps protect the sensitive estuarine ecosystem from nutrient pollution and other contaminants.