NINANE Wastewater Treatment Plant, Chaudfontaine, Liège, Belgium

The NINANE wastewater treatment plant is located in the Ninane district of Chaudfontaine, within the Liège province of Wallonia, Belgium. It served a population of approximately 6,656 people before its operational status changed to closed. The plant was part of the region's wastewater management infrastructure, handling domestic sewage from the local community. As a Belgian facility, it operated under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for collection and treatment of wastewater. For agglomerations of this size (between 2,000 and 10,000 population equivalent), the directive requires appropriate treatment, typically secondary treatment, to protect receiving waters. The plant's discharge would have been to local watercourses in the Meuse River basin, which flows through Liège and ultimately into the North Sea. The Meuse River supports diverse aquatic life and is an important ecological corridor in the region.

The plant is situated in the Meuse River basin, which drains through Liège and into the North Sea via the Netherlands. The Meuse River supports diverse aquatic ecosystems, including fish species such as salmon and trout, and provides habitat for migratory birds. The region's watershed is influenced by both urban and industrial activities, making wastewater treatment crucial for maintaining water quality and ecological balance.