SAINTE MARIE DES CHAMPS Wastewater Treatment Plant, Normandy, France

SAINTE MARIE DES CHAMPS is a wastewater treatment plant located in Sainte-Marie-des-Champs, a commune in the Seine-Maritime department of Normandy, France. The plant serves a population of approximately 4,900 people and operates with advanced treatment processes, reflecting France's commitment to high environmental standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant has a designed capacity of 3,000 cubic meters per day and currently discharges an average volume of 874.15 cubic meters per day. The advanced treatment level indicates that the plant employs tertiary processes such as nutrient removal or disinfection, which are typical for facilities serving sensitive areas or larger agglomerations. The treated effluent is discharged into the local watershed, which ultimately drains into the Seine River basin and then into the English Channel. The plant plays a crucial role in protecting the region's water quality, supporting aquatic life in downstream rivers and coastal ecosystems. Its advanced treatment helps reduce nutrient loads and pollutants, contributing to the ecological health of the Seine estuary and the marine environment.

The plant discharges into the Seine River basin, which flows through Normandy and into the English Channel. The downstream environment includes the Seine estuary, a critical habitat for migratory fish such as salmon and eels, and supports diverse aquatic life. Advanced treatment at this plant helps minimize nutrient pollution, protecting coastal water quality and marine ecosystems in the English Channel.