The area for the groundwater flow model was chosen so that it included the area from the pollution source to the local divide contour line and area in the groundwater flow’s direction to the base level of erosion which is now the Brevnicky stream. The east and west boundaries of the area was set depending on the documentation of isolines of potential that were in the project. The net of boundary elements consists of 19 zones and 252 elements. The boundary elements separate the area of the model from water-bearing migmatic paragneisses. The inter-zone elements separate the homogenous zones from each other. There are 19 such zones in total. One zone has the same coefficient of hydraulic conductivity and the same thickness. We used only 6 different coefficients of hydraulic conductivity k and one thickness M=16m. The values of coefficients of hydraulic conductivity k move in range from 1.8x10-7 to 59.2x10-7[m.s-1]. The coefficients were set from the previous remediation survey of the locality. They served as values given to the model. During the verification we adjusted the coefficients of hydraulic conductivity in some of the zones to make the water levels of the model fit best with the measured level values. The highest permeability 59.2x10-7[m.s-1] was set in the SAN-2 borehole. This value was also assigned to narrow tectonic zones from the geophysical survey. The tectonics was confirmed by hydrogeochemical survey that indicated the pollution is spreading from the borehole SAN-2 to the HP-118 which lies approximately on the cross-roads of two tectonic lines. The shape of these lines is ruled by the geophysical survey. These lines are preferred paths of pollution transport. The polluted area has such tectonic line bordered by zones with k=8.3x10-7[m.s-1]. This is an average value from the results of groundwater pumping from remediation boreholes SAN-1, SAN-3, HP-104 and HP-113. In the place of the borehole SAN-4 the value of the coefficient of hydraulic conductivity is k=8.3x10-7[m.s-1]. This value was used in zones Z18 and Z19. On the other hand we reached a good match between the model data and the measured data in the verification process that used k=6.5x10-7[m.s-1]. We consider the first lower value as strictly local and the second as the one characteristic for the most of the zone. The border zones Z1, Z15, Z17 have only little tectonic faults and are composed of paragneiss and therefore have small values of the coefficient of hydraulic conductivity k=1.8x10-7 or 2.5x10-7[m.s-1]. Although we used all the surveys and a verification process to set the zone’s properties, we cannot expect a total precision. The precision is impossible to reach in a water-bearing fissured medium. The boundary condition of constant pressure (or of constant groundwater level in this case because the area is a part of a bigger area) are given in the boundary elements.