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Hydrogeological features of the quaternary sediments lies in different assumption for the emergence of freatic accumulations of groundwater and the ability to power or, conversely, to some extent seal underlying aquifers. Effect of the opencast mining on activities of quaternary sediments is significant and consists primarily in a drainage effect. In places, where the overburden works crossed saturated parts of the quaternary cover, there is a sudden drainage of aquifers. This water vents are regularly cause unres...

The submitted paper describes general data about geology, hydrology and hydrogeology of Radovesice dump. There are eleven hydrogeological monitoring objects in the area of interest. Monitoring of the water level in these objects is proceeding every month. Hydrogeological objects are situated to the aquifers inside the dump body and close to the dump floor. Between January 2009 was realized the new monitoring object with six pore pressure sensors. The submitted paper shows particularly our experiences with the eval...