Abstract

This study was conducted on the Al-Dabwat Agricultural Project, which is located in Wadi Al-Shati in the southwest of Libya. Samples from 8 at that time operating wells were collected. To assess the quality of irrigation water, pH, electrical conductivity, total dissolved salts (TDS), calcium, sodium, magnesium and bicarbonate were measured. Irrigation water quality indicators such as sodium adsorption rate (SAR), Kelly’s Index and Soluble Sodium Percentage (SSP) were used. The results of the obtained calculations show that all groundwater samples are suitable for irrigation uses. It is also clear from the USSLS chart that most of the samples are safe to use for irrigation purposes. In general, groundwater in the study area is considered good for irrigation purposes.