<p>Once dams are built, sediments start to accumulate in the upper bay waters, <br /> fi lling the dead layer, which leads to blurring of clear waters and lowered efficiency of the reservoir. Finding a solution to this problem has been one of the main objectives for the scientists across the globe. Quite a few studies have been made to-date, in view to investigate deformation processes in upper bay waters, as well as to measure the sedimentation volume using fi eld-based data. Enhancing the tools available for measuring hydrological processes in upper streams of water treatment facilities, using the latest scientifi c achievements in the fi eld, as well as developing mechanisms ensuring less water loss are recognized as the most important goals nowadays. In this regard, the issues of enhanced exploitation reliability of reservoirs as well as of lower rates of turbidity and elaboration of effective tools for measuring the reservoirs’ working volumes are becoming increasingly important these days. The present study is particularly focused on the review of sedimentation processes based on the use of geo-information technologies and their reliable operation.</p>