Identificación y delimitación de lentes de agua subterránea dulce en la planicie costera del Río de la Plata, Punta Indio, Buenos Aires, Argentina

The aim of this study is to identify and delimitate the presence of valuable fresh aquifers in the coastal plain of the Punta Indio littoral in order to provide the indispensable information for a correct water management plan. To achieve this goal, Vertical Electrical Sounding (VES) and groundwater electrical conductivity measurements (EC) were performed and analyzed together. The whole dataset was processed to define the electro-stratigraphic model of the study area and to produce the map of the EC of the shallow aquifer. In addition, a three-dimensional model of the fresh water reservoir has been implemented for a better understanding of the relationship between the geomorphology of the littoral and the groundwater. Result points out that the freshwater is stored into sandy lens with an average EC of 1320 ?S/cm. Although in this work we provide only preliminary outcomes, the information here included is still useful for a sustainable use of the groundwater resources.