In the modern development of the economy, water bodies are of great importance. The economic assessment of water resources makes it possible to regulate their rational use. In addition, objects of interest for industrial exports can be identified. However, in order to carry out a correct economic assessment, it is necessary to identify approaches that take into account all the main factors. In particular, an inventory of groundwater reserves and subsurface areas for deposits and artesian basins will allow an assessment of the resource base and groundwater reserves.