Potentiel écologique d’un ouvrage de rétention et de filtration des eaux pluviales sur une opération de 172 hectares (Reims) ; analyse de la genèse du projet

A 172 ha town planning project has been developed near Reims (France) for the last five years. For one of the catchments of this area (72ha) a 15 000 m3 detention pond is being built, in a difficult hydrogeological context since ground water level may rise up to the natural ground.