AUBIGNY AU BAC Wastewater Treatment Plant, Aubigny-au-Bac, Hauts-de-France

AUBIGNY AU BAC is an advanced wastewater treatment plant located in Aubigny-au-Bac, a commune in the Nord department of Hauts-de-France, France. The plant serves a population of approximately 2,630 people, classifying it as a small agglomeration under French and EU regulations. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 4,500 m³/day and a current discharge volume of 469.19 m³/day, the facility operates well within its capacity. As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for discharges into sensitive areas. The treated effluent is discharged into local watercourses that ultimately drain into the North Sea via the Scheldt river basin. The plant plays a key role in protecting the region's water quality, supporting aquatic life in downstream rivers and contributing to the ecological health of the Scheldt estuary.

The plant discharges into local streams that are part of the Scheldt river basin, which flows through northern France and Belgium before reaching the North Sea. This watershed supports diverse aquatic ecosystems and is important for migratory fish species. The advanced treatment helps reduce nutrient loading, protecting downstream water quality in the Scheldt estuary.