Journal of Environmental Hydrology
Electronic Journal of the International Association for Environmental Hydrology
JEH Volume 17 (2009), Paper 24 Posted September 22, 2009
HYDROGEOLOGY, HYDROGEOCHEMISTRY, AND GROUNDWATER MODELING OF THE ZILITAN AREA, NORTHWESTERN LIBYA
Mohamed El Kashouty1
2National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt
The management of the limited arid groundwater resource in the Zilitan area, northwestern Libya, is critical. A combined analysis of hydrogeology and hydrogeochemistry is carried out to develop a comprehensive picture of the groundwater basin. There is concern with TDS increases in the north due to seawater intrusion. Principal component analysis identified distinct hydrogeological processes in the system. Dedolomitization was common in the aquifer. The groundwater samples are found to be unsuitable for drinking purposes but they are suitable for irrigation. The Processing Modflow for Windows model estimates a 5 m drop in potentiometric level in the southwest over 10 years at today's pumping rates. We recommend no increase in pumping rate, otherwise seawater intrusion can contaminate the groundwater system even with a small drop in potentiometric level.
Reference: El Kashouty, M., and A. Abdel-Lattif. 2009. Hydrogeology, hydrogeochemistry, and groundwater modeling of the Zilitan area, northwestern Libya. Journal of Environmental Hydrology, Vol. 17, Paper 24.
National Research Institute of Astronomy and Geophysics (NRIAG)
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