FREVENT LIGNY SUR CANCHE Wastewater Treatment Plant, Frévent, Hauts-de-France

FREVENT LIGNY SUR CANCHE is an advanced wastewater treatment plant located in Frévent, a commune in the Pas-de-Calais department of Hauts-de-France, France. The plant serves a population of approximately 2,683 residents and is designed to handle a capacity of 5,833 cubic meters per day, with a current discharge volume of 478.64 m³/day. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for agglomerations of this size. France implements this directive through national regulations, with permits issued by local authorities. The treated effluent is discharged into the local watershed, which ultimately drains into the Canche River and then into the English Channel. The plant plays a crucial role in protecting the Canche River's water quality and supporting the ecological health of the downstream estuary and coastal environment.

The plant discharges into the Canche River basin, which flows through the Pas-de-Calais region before reaching the English Channel. The Canche River supports diverse aquatic life, including migratory fish species, and its estuary is an important habitat for birds. The advanced treatment helps reduce nutrient loading, protecting the river and coastal waters from eutrophication.