STEENVOORDE Wastewater Treatment Plant, Steenvoorde, Hauts-de-France

The STEENVOORDE wastewater treatment plant is located in the commune of Steenvoorde, in the Nord department of Hauts-de-France, France. It serves a population of approximately 1,515 residents and operates with advanced treatment processes, ensuring high-quality effluent. The plant has a designed capacity of 5,000 m³/day and currently discharges 270.27 m³/day of treated wastewater. As a French wastewater facility, it operates under the national regulations transposing the EU Urban Waste Water Treatment Directive (91/271/EEC). For small agglomerations like Steenvoorde (under 2,000 population equivalent), the directive requires appropriate treatment, and France has implemented advanced treatment in sensitive areas. The plant's advanced treatment level indicates it likely employs nutrient removal or other tertiary processes to protect the local environment. The treated effluent is discharged into local watercourses that ultimately drain to the North Sea via the Yser River basin or the Aa River. The region's flat topography and agricultural land use mean that nutrient removal is important to prevent eutrophication in downstream waters. The plant contributes to maintaining water quality in the sensitive Scheldt and North Sea coastal zone.

The plant discharges into local streams that are part of the Yser or Aa river basins, which flow into the North Sea. The region is characterized by low-lying polders and agricultural areas, making it sensitive to nutrient pollution. Advanced treatment helps protect downstream aquatic ecosystems, including the coastal waters of the North Sea, which support diverse marine life and are important for fisheries and tourism.