FRESNOY LE GRAND Wastewater Treatment Plant, Croix-Fonsomme, Hauts-de-France

FRESNOY LE GRAND is a wastewater treatment plant located in Croix-Fonsomme, within the Aisne department of Hauts-de-France, France. The plant serves a population of approximately 5,800, classifying it as a small to medium agglomeration under French and EU regulations. It is situated inland, away from coastal areas, and discharges into local watercourses that eventually feed into the Seine River basin. As a facility in France, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. The directive also requires appropriate treatment to protect receiving water bodies, especially in sensitive areas. The plant is expected to meet these regulatory standards to ensure environmental compliance. The treated effluent from the plant is discharged into local waterways, contributing to the hydrology of the Somme River basin. This region supports diverse aquatic life and agricultural activities. Proper treatment helps maintain water quality in downstream environments, including the Somme River and its estuary, which are ecologically significant for migratory fish and wetland habitats.

The plant discharges into local streams that are part of the Somme River basin, which flows into the English Channel. The Somme River supports a variety of aquatic species and provides important habitats for migratory birds. The region's water quality is influenced by agricultural runoff and urban discharges, making effective wastewater treatment crucial for preserving the ecological balance of the river and its estuary.