Application of a Logit Model for Water well site location in fractured-bedrock aquifers in northeastern Brazil

Wells drilling process in fractured-bedrock aquifers is a difficult task. Extreme variations lithology and structure features, as well productive water zones sited at preferential points make geological geophysical investigations difficult. To contribute to the understanding of groundwater occurrence aquifers, this paper develops prospective model by using regression analysis, whose parameters were calibrated according photogeological cartographic analysis 113 states Rio Grande do Norte, Paraíba, Ceará. The effectiveness resulting was assessed through sample 43 additional drillings, which carried out aiming distribution communities semiarid region Brazil. obtained results indicate an important tool process, with direct implications on logistics costs site location consequent attendance population that needs water.