Saint Romain de Colbosc Wastewater Treatment Plant - Normandy, France

The Saint Romain de Colbosc wastewater treatment plant is located in the commune of Saint-Romain-de-Colbosc, in the Normandy region of northern France. The plant serves a population of approximately 3,000 residents and operates with advanced treatment processes, reflecting the high environmental standards required for coastal discharges in this region. As an advanced treatment facility, the plant goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent. The plant has a designed capacity of 7,000 m³/day and currently discharges 535.19 m³/day, indicating significant spare capacity. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants in sensitive areas such as coastal zones are required to meet stringent nutrient removal standards, which this facility's advanced treatment likely fulfills. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the English Channel. The proximity to the coast (within 10 km) means the discharge must meet strict environmental criteria to protect marine ecosystems. The Normandy coastline supports diverse aquatic life and is an important area for fisheries and tourism, making the plant's advanced treatment crucial for maintaining water quality.

The plant discharges into the local watershed that flows into the English Channel, a vital marine environment supporting diverse aquatic life and commercial fisheries. The proximity to the coast (within 10 km) means the effluent must meet strict nutrient and pollutant limits to prevent eutrophication and protect sensitive coastal habitats. The region's estuaries and intertidal zones are ecologically significant, serving as nurseries for fish and stopover sites for migratory birds.