ABSTRACT: Groundwater can flow through boreholes with perforated tubes and a filtration layer in horizontal or vertical directions. Vertical water flow in borehole is a consequence of interconnrection of the different pressure horizons, pumping or infusion of water. Its parameters change with respect to the boundary conditions. Analysis of the natural and artificial hydrodynamic processes in the boreholes enables to gain information important for groundwater resources protection as well as their optimal utilization, The paper presents information obtained from analysis of the hydrodynamic processes in bored wells in porous and fissure mediums.