MEZIDON CANON Wastewater Treatment Plant, Mézidon Vallée d'Auge, Normandie

MEZIDON CANON is an advanced wastewater treatment plant located in Mézidon Vallée d'Auge, in the Normandie region of France. The plant serves a population of approximately 4,836 people and has a designed capacity of 10,000 m³/day, with a reported discharge volume of 862.73 m³/day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a French facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The plant's scale places it in the small agglomeration category, for which secondary treatment is typically mandated, but the advanced level indicates a higher environmental standard. The treated effluent is discharged into the local watershed, which ultimately drains into the English Channel via the Dives River and its estuary. The downstream environment includes the Baie de Seine, a coastal area that supports diverse aquatic life and is important for migratory birds. The plant's advanced treatment helps protect this sensitive marine ecosystem from nutrient pollution.

The plant discharges into the Dives River basin, which flows into the Baie de Seine and then the English Channel. The Baie de Seine is an ecologically sensitive coastal zone that supports diverse marine life, including fish nurseries and migratory bird populations. Advanced treatment at the plant helps reduce nutrient loads, protecting the estuary from eutrophication and maintaining water quality for downstream habitats.