[en] The results of radio hydrogeological monitoring in the zone of influence of 'Ukrytie' obtained in 1997 are given. The monitoring included regular observation of underground water level in boreholes, and also radiochemical composition of underground, unit and technological waters. The mechanisms of distribution of radionuclides in water by flow of underground water and in soils of aeration zone were studied. With the help of gamma-logging wells the radio metrics of technogeological section of an industrial site of 'Ukrytie' were specified