With no surface water available during the dry season in Touba, using groundwater for irrigation is a real alternative. In general, the poor quality of irrigation water has an effect on soil quality, which is harmful to plant growth and therefore has an impact on yield. Irrigation water can even pose a risk to human health. It is crucial to assess the quality of irrigation water before use. Consequently, the aim of this study is to assess the suitability of the groundwater in TOUBA and the surrounding area for irrigation. For the purposes of this study, the Sodium Absorption Ratio (SAR), the Magnesium Absorption Ratio (MAR), the Doneen Permeability Index (IP) and the Potential Salinity (SP) were calculated for sixteen (16) boreholes tapping the Maastrichtian aquifer. The determination of these parameters is based on hydro-chemical data (Electrical Conductivity (EC), concentration of chloride (Cl-), sulphate (SO4 2-), calcium (Ca 2+), bicarbonate (H03-), magnesium (Mg 2+), sodium (Na +) and potassium (K+) ions) received from the Water Resources Management and Planning Department (DGPRE) and the Rural Drilling Office (OFOR). According to the SAR, 12.5% are C3S1, 12.5% C1S4, 31.25% C4S3-C3S4, 6.25% C2S4 and 37.5% C4S4. 93.75% of the samples have a MAR above 60% [FAO limit]. Determination of the Doneen index (PI) shows that all the samples have PI above 75%. However, only 18.75% of the waters studied have the SP values recommended by Doneen.