Ecological Systems and Devices Annotation << Back Organization local water-supply system in the arid climate regions Askerniya A.A., Korabel’nikov V.M., Plemenov V.A. The most of the countries of the arid climate are characterized as a rule by the deficiency of the water resources, but to the hydrogeological conditions some of regions are possessed with considerable stocks of the underground waters to permit use them, after preliminary cleansing from the unhealthy dissoluble admixtures, in the national economy. The using of the reverse-osmotic plants was assumed as a basis to the cleansing of the natural underground waters, which allows to clean the water, without disturbing of it’s structure, from the dissolved admixtures , the concentration of which often exceeds the permissible value’s limits.