Abstract: Groundwater is an important source of water in desert wadies, where due to aridity conditions and scarcity of surface water, Residents and Bedouins depend on it in their daily lives. Wadi Hodein is one of the largest wadies in the Egyptian Eastern Desert that relying on groundwater abstraction from Nubian Sandstone Aquifer (NSA). There are several shallow wells penetrate the NSA, but the most important deep wells are Abu Saafa and El Dief wells. Bedouins strongly depend on these wells for drinking purpose. The aim of this research is to assess the potentiality of the groundwater aquifer under the present stresses, in order to preserve the sustainability of this essential water resources to ensure the stability of the inhabitants in this important border region in the future. Visual Modflow 3.0. was run to simulate the groundwater conditions in the aquifer. The model was run for 50 years to assess the sustainability of pumping from these wells based on a sensitivity analysis between specific yield and drawdown under the current discharging rates. The results revealed that the existing wells are in the safe side under the current discharge rates and it is highly recommended to keep the discharge from these wells in the range between (5- 20 m3/hr) to avoid water depletions in shallow wells excavated by residents other wise these shallow wells should be deepened.
Keywords: Nubian Sandstone Aquifer (NSA) – Sustainability -Visual Modflow - Sensitivity analysis.
Title: Assessment the Sustainability of Nubian Sandstone Aquifer Using Numerical Modelling in Wadi Hodein- Eastern Desert- Egypt
Author: Mohamed S. M. Zayed, Marwa M. Aly, Sameh A. Sakr
International Journal of Engineering Research and Reviews
ISSN 2348-697X (Online)
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