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Western Siberia is a unique territory where more than 12000 water reservoirs are located. The region is characterized by high bogginess up to 90% in the north. Bog and lake systems are able to accumulate natural and technogenic resources, including trace elements and organic matter. The article presents the results of a surface water chemical composition along a 5-year monitoring. The obtained data allow concluding that dynamics of water chemistry is predetermined by their location in various landscape zones and subordinated to zonal distribution of such major landscape elements as moistening, evaporation, rate of groundwater flow, etc.