CHANGES IN THE QUALITATIVE CHARACTERISTICS OF UNDERGROUND WATERS OF THE OSSETIAN ARTISIAN BASIN

Abstract

The paper summarizes materials on fresh groundwaters and compares the changes in their quality during operation. The results of chemical analyzes of different years are systematized. The characteristics of deformation changes in aquifers and their relationship to surface waters are given. The evaluation of the groundwater protection against natural and anthropogenic pollution is given. The methodology for calculating of protective sanitary zones for water intakes with various hydrogeological conditions is developed, and measures for sanitary protection and revealing of pollution sources are offered (reasons for increasing hardness and mineralization of fresh groundwater in the industrial zone of Vladikavkaz ). Based on the investigation results, conclusions were drawn on possible sources of increasing rigidity and deterioration of groundwater quality in Ossetian artesian basin.