Assessment of Hydrogeochemical Processes Controlling Groundwater Quality at Wadi-Gharandal, South Sinai, Egypt

The hydrogeochemical composition of the several ground water aquifers in the Wadi-gharandal regions, Southwest Sinai, Egypt was studied to identify the primary determinants of the groundwater's chemistry, salinity, and hydrogeochemical evolution. four waters bearing formation Quaternary, Lower Miocene, Lower Cretaceous and Upper Cretaceous considered the most probable source for drinking, irrigation and domestic use in Gharandal area. The quality of groundwater and its ability for different usage along the water path was determined using different integrated approach. In the study area the Quaternary aquifer has the highest salinity level varies from 870 to 15007 mg/l, The main causes of this TDS variation are geochemical processes and the interaction of groundwater with the aquifer matrix. all of the study area's groundwater samples have negative RSC values, indicating that there is no issue with the amount of carbonate and bicarbonate in the irrigation water; that is, the concentrations of carbonate and bicarbonate anions in the study area's groundwater samples are extremely low.