In the plain of Sidi-Bel-Abbès (Northwest of Algeria), in a semi-arid climate, the use of irrigation is inevitable for most crops. Groundwater are increasingly sought.
The aim of this work is the determination of the chemical composition, facies and class of water quality for irrigation of the plain of Sidi-Bel-Abbes. This is more precisely determining the constraints and opportunities of using this water for irrigation of agricultural land in the area of Sidi-Bel-Abbes. A hydrochemical study was carried out which focused on the major elements of the water aquifer. Samples were taken over a period of two months (June and July). The 17 wells are controlled spread across the plain. Analyzes reveal a variety of chemical compositions, samples split between two facies: the sodium chloride and calcium sulfate. Mineralization of water, which is generally high, poses a risk of soil salinization.