World Journal of Engineering Research and Technology

Olaniyan Isaac Oladejo*

ABSTRACT

This study evaluates the hydrologic properties of basement aquifer in Soba area of Kaduna State in north central part of Nigeria, especially because hydrology, among other things, studies the occurrence, properties and behavior of water at any location. The data obtained from 56 producing wells in the area were used to evaluate the basement aquifer in the study area. Hydrologic properties of the aquifer which have significant effect on borehole productivity were investigated and analyzed. The maximum, minimum and the mean of the range of values of the hydrologic parameters are provided. The transmissivity values of the wells were computed and compared using three different methods, namely Babuskin, Jacob and Logan methods. The transmissivity values obtained using Babuskin method ranged from 1.27 to 26.19 m2.day-1, those from Jacob method ranged from 1.18 to 4.68 m2.day-1, while Logan method gave transmissivity values ranging from 1.66 to 31.23 m2.day-1. The values from Babuskin and Logan methods compared closely but far higher than the values obtained from Jacob method. The highest values were obtained at three locations, namely Kwalliga with 30.11 m2.day-1, Angwan Liman with 31.00 m2.day-1 while Karofi has 31.23 m2.day-1. The minimum values of transmissivity converged at Madarzai from each of the three methods used. The hydrologic data were further used to generate the basement isochore map and the water table map for Soba and environs.

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