EVALUATION OF GROUNDWATER QUALITY OF SIWA OASIS

Abstract

In discussing the water quality evaluation for use in different purposes, the author will briefly examine some of the major important water quality standards. These standards serve as a basis for appraisal of the results of chemical water analysis in terms of suitability of the water for various intended uses. According to total dissolved salts (TDS),  major  ions as cations ( Ca²⁺, Mg²⁺, Na⁺, K⁺), anions (CO₃^2â», HCO₃â»Â  ,SOâ‚„²â», Clâ»), with some heavy metals such as Al³⁺, B³⁺ , Cd²⁺, Co²⁺, Cr³⁺, Cu²⁺, Fe³⁺, Mn²⁺,  Mo²⁺, Ni²⁺,  Pb²⁺, Sr²⁺, V^2+   and Zn²⁺  The results  indicate  that  the samples of Nubian sandstone aquifer is suitable for drinking of human and livestock , suitable for laundry purposes and for irrigation. While the samples of Fractured dolomite limestone aquifer are unsuitable for drinking and irrigation.