QUALITY ASSESSMENT OF RAISING GROUNDWATER IN WATER LOGGING AREAS IN ASWAN CITY

Abstract

Aswan is considered one of the important Egyptian Governorates as it represents the southern gate to Egypt. Moreover, the existences of Aswan High Dam which represent a strategic element of the Egyptian country give this city high importance. The present study deals with the quality assessing the rising groundwater the aquifer into the logged areas in Aswan city using Water Quality Index approach and gives a recommendation for using water for drinking. Eight water samples are collected between December 2016 to June 2017 Physio-chemical parameter are estimated and processed according to Standard Methods for the Examination of Water and Wastewater (21st edition – SMWW). According to the international standards of assessing water quality for drinking and irrigation uses and national laws and rules for using and discharge of groundwater and drainage water into the River Nile or irrigation Canal. TDS in the rising groundwater is relatively high; it ranged from 235 to 6794 mg/l. It also has a highly polluting effect on water quality. It has nitrate concentration ranges from 0.2,82 to 204.59 mg/l. Samples of Alnubalaa graveyard, Kima leakage, and Leakage behind Spanish bazar samples show characters showed WQI of 71.2, 79.1, and 57.2 respectively, that resemble to be river Nile water or irrigated water and cannot be used for drinking. Groundwater sample was collected from Alshallal well has 86.9 WQI. It can be used as drinking water after some disinfection treatment with chlorine. other sites have WQI (drinking water- raw water) {Al Hasaya House (23.8-31.1), Aldamas Leakage House (38.5-45), Alsail House (16-27.1) and Khor awada House (24.3-26)} have WQI for (drinking water- raw water), show bad criteria compared to drinking water standards and raw water standards and can be recommended doing some treatment before discharging to River Nile or using in irrigationvvv