ABSTRACT
The intensive rate of groundwater exploitation in several areas of “Los Arenales” aquifer (Duero Basin, Spain) over the last four decades has led to a remarkable descent of water heads. As a result, the Spanish ministry of agriculture (MAPA) began several studies and inquiries based on artificial superficial recharge in order to minimize environmental impacts. The main aim of this paper is to describe the methodology employed based on reproducing the three-dimensional palaeogeography, to define the dimensions and properties of an Aeolian aquifer. Methods include topographical and geophysical methods and carrying out hydraulic tests in boreholes, in order to know about the behaviour of the aquifer and its response to artificial recharge. Complementary studies allowed Modflow modeling, which uses data about the volume of water involved and the most adequate recharge method and facilities in each area. The results suggest that this aquifer is appropriate for artificial recharge application, the methodology is feasible and useful to other similar aquifers, and the consequences of its application should profit agriculture, improve the environment and enhance social acceptance of new aquifer recharge projects.
