The Baixa Tordera alluvial aquifer system is located in the northeastern Mediterranean coast of Spain. This system is considered as a strategic aquifer for planning the management of regional water resources. Since the 1980s, this area has been the subject of an important tourist and industrial development that has incremented the water demand. The aquifer system is composed, in its coastal zone, of an unconfined alluvial aquifer and a confined one (granitic basement), separated by an aquitard of complex geometry,
which makes this system heterogeneous.
which makes this system heterogeneous.