The increased demand for water has caused that problems involving retention and artificial recharge of groundwater have become one of the most important water management problems. In practice there are often hydrogeological situations where the capacity of the water bearing environment is to small to satisfy demand. The lack of adequate viable sources of groundwater supply suggests utilizing surface waters to artificially recharge water bearing rock layers. This would allow the discharge capacity of water wells to be increased. An accurate hydrogeological prognosis of the effects of a well working within these conditions hence has a much greater practical significance. The prognosis is performed using analytical methods or more reliable, mathematical modelling. This paper represents an estimation of the accuracy of hydrogeological prognosis for single and double well bank infiltration stations located in the vicinity of perpendicular recharge boundaries. These prognosis were realized by comparing the results obtained by analytical and modelling methods for wells exploiting both the confined and unconfined layers. In total 140 variant solutions were realized. Analytical calculations for two wells working in tandem were performed on the basis of equations introduced by the authors of the paper. The analytical accuracy defining the output capacity of a well under given boundary conditions and both hydrogeological and technical-exploitation parameters is 0-13% in the case of a single holed well intake and 0-8% for a double holed well intake. Meanwhile errors in calculating the drawdown of the water table can be 20% and 10%.