The analysis of water supply sources of Omsk region settlements along the Om river

The article gives an analysis of the existing situation in the sphere of water supply in rural municipal districts of the Omsk Region located in the interfluve of the rivers Irtysh and Omi. Of 105, taken for analysis, settlements of Nizhneomsky, Kormilovsky, Kalachinsky and parts of Omsk municipal districts for the purposes of water supply use a surface source - r. Omi (27.6 %). Groundwater, mostly from private, less often public wells, is used by 64.8 % of the population. 7.6 % of settlements are connected to or connected to water supply networks of the centralized water supply in Omsk. In Kalachinsk and Kormilov districts, tubular wells and wells with a depth of up to 1100 m are used for water supply from underground sources. In Omsk region, group water intakes consist, as a rule, of either 2-3 tubular wells with a depth of 140 m and 30-35 m, or from 3-6 wooden log houses. The disparity of water samples from underground sources with the standards for sanitary and chemical indicators is associated with a significant deterioration of water intake facilities. Thus, out of 11 tubular wells existing in the Nizhneomsky district, 10 have a wear of 100 %. The water of the underground horizons used by the population for water supply is characterized by increased mineralization, the content of salts of hardness, iron, and the presence of ammonium salts and petroleum products. The materials cited in the article confirm the need for the construction of the Gorky group water supply system to provide residents of these areas with good-quality drinking water that meets the safety requirements of their livelihoods.