COUPLED USE OF THERMAL AND HYDRAULIC-HEAD DATA TO CHARACTERIZE RIVER GROUNDWATER EXCHANGES

Bank filtration is often used for the production of drinking water fro m alluvial aquifers. In this paper we present a model of river bank fi ltration for a case test study of a well field located in France. The inverse approach and the conjunctive use of piezometric and thermal da ta bring to light the importance and the heterogeneity of the banks on the filtration. An example of chloride tracer transport is given and the influence of the clogging of the bank on the filtration of polluta nts is presented.