In this article, the purpose of the research was to study the ecological characteristics of groundwater and central water supply used for drinking and economic activity of the Kievka village. Hydrochemical indicators of the samples were determined by conventional methods, and performed on 16 indicators: pH, electrical conductivity, suspended solids, dry residue, chlorides, sulfates, phosphates, total hardness, sodium, ammonium nitrogen, nitrites, nitrates, chemical oxygen consumption (COD), anionic surfactants (APAS), total iron, manganese. When assessing the hydrochemical state of drinking water in the village of Kievka, it can be noted in the kindergarten "Altyn-dan" and the Kiev secondary school No. 3, which is determined by certain indicators exceeds the MAC. As a result of microbiological studies of water samples from the village of Kievka, it was revealed that the total microbial number is normal. It is determined that a different number of fungi and actinomycites are present in all samples. In the initial concentration, a large concentration of fungi was observed in all samples.