IJSRP, Volume 12, Issue 11, November 2022 Edition [ISSN 2250-3153]
Oghenero G. Siloko, Mohammed A. Mojeed and Ridwan O. Alabi
The hydrochemical properties and groundwater quality assessment of groundwater samples from Kurudu area of Abuja, north central Nigeria, was investigated with the aim to evaluating their suitability for drinking and irrigation purposes. Physicochemical parameters such as temperature, pH, total dissolved solids, total hardness, and electrical conductivity were analysed. The major cations and anions were also analysed. Hydrochemical facies of the water samples were analysed employing Piper diagram and Gibbs diagram while the suitability of the water for irrigation purposes was assessed using indices such as Kelly’s ratio, Sodium percentage ratio, Magnesium hazard, Permeability Index and Sodium Absorption Ratio (SAR). The physicochemical parameters of the water samples are within the acceptable limit recommended by WHO (2011). Physiochemical results showed that the dominant cation occur in the order of Ca2+> Na+> K+> Mg2+ with average values of 19.9mg/l, 16.15mg/l, 7.01mg/l and 4.38mg/l respectively, while the dominant anion ranged in the order of HCO3-> Cl-> SO42-> NO3-with average values of 56.93mg/l, 35.5 mg/l, 8.38mg/l and 3.85mg/l respectively. The dominant hydrochemical facies identified in the samples is the mixed Ca-Mg-Cl which is a result of linear mixing processes of water in the study area. Gibbs plot indicated that ions concentration in the water is primarily contributed by chemical weathering of the rock-forming minerals. Irrigation indices all suggested that the water samples are good for irrigation purposes. Results from the study indicate that, with a few exceptions, water in the study area is suitable for human consumption and irrigation purposes.