Saratov oblast small rivers as the object of water use: monitoring of ecological state, complex assessment and improvement of water quality

In work the analysis of chemical composition of small rivers waters in Saratov oblast is submitted. Distinctions in the chemical composition of water in upper, middle and lower watercourses are shown; dependences of water composition on season and nature use of catchment areas are analyzed. Depending on features of the chemical composition of water, the river of the researched area are divided into several groups. It is told about experience of providing small settlements with qualitative drinking water due to application of stations of water purification of the LISSKON-101 series.