Numerical simulation of seawater intrusion in the lower Seybouse aquifer system, Algeria

Seawater intrusion represents a high risk for the water supply, agriculture and industry activities in lower Seybouse region of North-Eastern Algeria. In order to analyze this risk, three-dimensional model was developed using MODFLOW MT3DMS codes predict seawater coastal aquifer. The application indicates that groundwater withdrawals result continuous decrease level an increase chloride concentration. Moreover, salt front could progress by 300 2500 m land. These results show necessity adequate measures protection Numerical predictions 2045, considering 20%, fairly significant levels, up -6 with respect mean sea level, Cl- concentrations about 10 km inland.