La gestion des ressources en eaux souterraines en région parisienne ouest

Groundwater resources management in the West of Paris

¹ Lyonnaise des Eaux-Dumez, Direction Régionale Parisienne Ouest, 42, rue du Président Wilson, BP 56, 78230 Le Pecq, France
² Lyonnaise des Eaux-Dumez, Direction Technique de la Recherche, 72, rue de la Liberté, 92022 Nanterre Cedex, France

Abstract

The growth of the Parisian urban center has set the problem of potable water for more than a century. During the last decade the main concern of water distributors has been focused on water quantity and quality. Through two concrete examples the authors analyze the problematic, the methodology and results obtained for groundwater resource management in the West Paris area. They explain on site procedures, experimentations carried out and the realized numerical approach. A statement of the various surveys is proposed, which gives the main axes of future programs: hydrogeochemical survey, groundwater modeling, aquifer recharge optimization, water quality monitoring station, maintenance services. Finally authors explain the water pollution management strategy as well as the process used to preserve groundwater quality and quantity in case of major pollution.