CONDITIONS FOR THE FORMATION OF AQUIFERS QUALITATIVE STATE IN THE SOUTHERN BUG RIVER BASIN

Ukraine implements the principles of integrated water resources management according to the basin principle as stipulated by the EU Water Framework Directive. River basins are considered as integral multi-component systems and management plans are developed for them, which contain analysis of water resources existing state and measures for achievement of good condition of surface and groundwaters. Therefore, an objective assessment of the current state of groundwater and consideration of the conditions of its formation becomes particularly important. The purpose of this article is the analysis of natural and anthropogenic conditions of groundwater formation within the Southern Bug basin. Southern Bug basin with the area of 63 700 km2 is the only river basin of the I order, which is completely located within Ukraine, on the territory of seven administrative regions. Due to the diversity of structural-geological and physical-geographical conditions of different parts of the basin, groundwater resources are distributed unevenly. The natural conditions of groundwater resources formation, their protection from pollution are analyzed and anthropogenic pressure is briefly characterized. The existing state of groundwater and its changes in space and time are evaluated. Changes in the quality of groundwater of the principle aquifers during the water intakes operation have been analyzed. The priority of natural factors in the formation of groundwater qualitative state has been established. The research results will be used during groundwater monitoring in the territory of the Southern Bug basin.