Аннотация
The article presents results on the utilization of stable hydrogen and oxygen isotopes to understand the origin and dynamics of water resou8rces especially ground waters. Research involved sampling from test boreholes and gauging stations, laboratory research into the ratio of stable isotopes and a chemical analysis. Results showed that stable isotopes may change depending on a season, which indicates that a source of water supply also changes over time. Research also addressed the impact of evaporation processes on water bodies. Results provide valuable information to efficiently manage and preserve water resources in the region.