Eléments hydrogéologiques dans l’étude de l’influence de deux décharges sur le système aquifère de la plaine du Rhône (Valais central, Suisse)

Hydrogeological elements in the study of the influence of two landfills on the Rhône plain aquifer system (central Valais, Switzerland). – The aim of this publication is to contribute to the knowledge of a part of the Rhône plain alluvial system under the influence of two landfills. <br> The hydrological environment of this zone is described using topographic, geologic, climatic and hydrologic information, allowing a 3D approach. <br> This analysis confirms the complexity of the ground water flows in the aquifer between Sierre and Granges. The great diversity of the anthropogenic or natural element sources are responsible for the 3D heterogeneity of the water quality observed in the aquifer.