Landfill of the Boršt hydrometallurgical shaft has been monitored using geodetic methods since 1988. Terrestrial geodetic networks Plaz and Vrtine-2 have been established at the landfill and in the surrounding area. Both networks have undergone quite a number of changes throughout the geodetic surveying, mostly due to the repairing of the landfill itself. The master's thesis describes the measurement of both networks. The horizontal coordinates and the heights of the points were determined by adjustment process and their accuracy was estimated. We adjust the networks separately and total and compared the results. Based on the previous measurement, the probability of moving points in separate and total network was verified by statistical methods. The results of the indirect least-squares equalization were compared with the results of the S-transformation, which was used to determine possible movements of given points. Based on the analyses, we determined that it is necessary to set a new geodetic datum.