Yuriy SHEVTCHUK, Andrij NUCOLAEV, Anton SHEVTCHUK.

THE QUALITY OF DRINKING WATER OF NO CENTRALIZED WATER SUPPLY IN CHERNIVTSI.

In this article is given the characteristic of the condition of no centralized water supply and presented test results of the drinking water in wells of different areas in Chernivtsi. In contradistinction to centralized sources of water supply, where hygiene and technological conditions assure the defense of source the process of formation drinking water quality in wells is influenced by human impact through the different soil’s horizons. Through the last one’s the chemical and bacteriological pollutions get into the water and this makes a problem for environmental and for the water consumers. No centralized water supply system is located in southwestern and northeastern part of the city. And it is also located in the other parts of Chernivtsi where the water distribution system is situated. In the system of no centralized water supply was found the disparity in the water tests to regulatory requirements of such indicators: physicochemical, sanitary and toxicological and microbiological. The water color which indirectly determine it’s organoleptic features change from 0 degree till 70 degrees at a rate no more then 35 degrees, permanganate oxidation is from 1,17 mg/dm3 till 12,5 mg/dm3, the overall hardness in the most part of the city is more then 10 mmol/ dm3, the water in 25 % of the wells exceed regulatory requirements (1,8-4,4) of OMN (overall microbiological number).

Key words: water supply, groundwater, well, microbiological pollution, overall microbiological number.

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