Finite-difference methods 1 Ground water table 1 Groundwater 1 Groundwater resources 1 Hydraulic connection 1 Hydrodynamic field 1 Hydrogeological 1 Hydrogeological prognose 1 Hydrogeological structures Kielce 1 Mining drainage 1 Numerical methods 1 Water circulation 1 finite differences method 1 groundwater 1 hydraulic connections 1 hydrogeological prognosis 1 mining drainage 1 numerical model 1