Deep aquifers as strategic groundwater reservoir in Spain

The objective of this paper is to establish a definition deep aquifers, develop methodological proposal help select them as strategic groundwater reserves and first inventory aquifers in peninsular Spain, organized by hydrographic districts. basic premises followed consider permeable formation aquifer are: water table depth greater than 300 m free or the top case confined aquifers. A also considered be lower horizon very thick (from m), from which most superficial used. potentially favorable areas initial characterization based on compilation synthesis geological hydrogeological information, structured 5 large blocks: location identification, geology, hydrogeology, current status bibliography. For its evaluation, flowchart has been proposed with lines evaluation process. relevant aspects for suitability would be: stratigraphy structural prior knowledge conceptual model renewal, quality, viability exploitation, effects, final knowledge, management governance. result allows classified into three categories: reserve, punctual reserve non-viable reserve. carried out encompasses total 64 located 13 basin Finally, example, are presented: Amblés Valley, Madrid detritic El Maestrazgo.