ENNETIERES EN WEPPES Wastewater Treatment Plant, Ennetières-en-Weppes, Hauts-de-France

ENNETIERES EN WEPPES is a wastewater treatment plant located in Ennetières-en-Weppes, a commune in the Nord department of Hauts-de-France, France. The plant serves a population of approximately 2,467 and has a designed capacity of 4,500 m³/day, with an average discharge volume of 440.11 m³/day. As a secondary treatment facility, it meets the requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary biological treatment for agglomerations of this size. The plant operates under the French regulatory framework, which implements the directive through national legislation and permits issued by the local water agency. The treated effluent is discharged into the local watershed, which ultimately drains into the North Sea via the Deûle River and the Scheldt basin. The plant plays a key role in protecting the region's water quality, supporting aquatic life and downstream ecosystems in the Nord-Pas-de-Calais region.

The plant discharges into the Deûle River, a tributary of the Lys River, which flows into the Scheldt estuary and eventually the North Sea. This watershed supports diverse aquatic habitats and is important for migratory fish species. The region's flat terrain and dense urban and agricultural land use make effective wastewater treatment critical to prevent nutrient enrichment and maintain water quality in downstream rivers and coastal zones.