Comparison of chemical composition of thermal, surface and subsurface water in the Kuldur territory

The results of mathematical processing of monitoring data on the Kuldur thermal wells, rivers and fresh water from wells are presented in the article. The water from the Kuldur thermal field is high mineralized and alkaline. The thermal water, as compared to the river water and groundwater, is enriched with such components as Na+(+K), Cl-, SO42-, CO32-, F-, H4SiO4. Both the river water and groundwater is low mineralized and neutral. The water from the Kuldur-river and freshwater-wells is characterized by a higher content of calcium in comparison with thermal springs. The thermal water enrichment with Na (+K), Cl, SO42-, CO32-, F-, H4SiO4 is connected with a significant inflow of juvenile waters rising from the depths of the Earth's crust.