Аннотация:26 streams draining the Archean granites and early Proterozoic intrusions of the Tsipringa basin were investigated. Sampling was conducted for 4 years in the summer low-lying period. In the samples studied, the contents of the main cations and anions, microelements and dissolved organic carbon were determined. The obtained results were compared with the composition of bedrock, precipitation (meteoric water), groundwater and feeding bogs to assess their effect on the trace element composition of the studied watercourses.