Contracting authority : Aubergenville city council Chief engineer assistant : BET Bonnel et Gardel Mission : eco-building, HQE architecture Contractors : France ASSAINISEMENT - GC PINTO Treatment abilities : 20 000 EH Works outlay : about 6 000k€ (exclusive of tax) Localisation : Aubergenville (78) Market concluded in November 2007 The wastewater treatment plant was introduced into the landscape and designed in order to establish a link which would enable a direct connexion between the surrounding farming weft and the