Introduction Hydro-ecological problems Climate Surface water Ground water Databases Executors Areas of underground waters with mineralization up to 0.1 g/l of hydrocarbonate calcium-magnesium content up to 0.3 g/l of hydrocarbonate calcium-magnesium content up to 0.5 g/l of hydrocarbonate calcium-magnesium content and chloride-hydrocarbonate or sulfate-hydrocarbonate mixed by cations up to 1 g/l the same hydrocarbonate-chloride sodium or mixed by cations Areas of underground waters mineral radon waters (radon content more than 185 Bk/l with iron content more LPC (Fe>0,3 mg/l) Mineral water sources mineral radon (radon content more than 185 Bk/l) mineral waters containing iron (Fe>10 mg/l) with mineralization more than 1 g/l Russian platform border