Keywords : Physicochemical, Spatial Distribution, Groundwater Quality, Geographic Information System, Interpolation, Kano metropolis
Assessing spatial distribution of groundwater quality in Kano Metropolis was carried out using GIS. Thirty-two water samples were collected from the eight LGAs that constitutes Kano metropolis and four sample points were randomly selected from each. Spatial interpolation and mapping were deployed. The results revealed that total hardness, calcium, magnesium, chlorides, sulphates and sodium from the groundwater within the study area falls within the permissible limits. Also, most of the sample sites around the industrial areas within the metropolis such as parts of Kano Municipal, Fagge, Nassarawa, Gwale, Kumbotso and Ungogo LGAs showed higher physicochemical concentrations and are slightly acidic. The results suggest that the groundwater from the highly populated areas and areas close to the industrial sites needs some form of treatment before consumption and it indicates the need to develop suitable management practices to protect groundwater resources from effluents and discharges of industries in Kano metropolis.