Aquifer Characteristics of Some SelectedVillages around Kaduna Refining and Petrochemical Company (KRPC) in Chikun Local Government Area of Kaduna State, Nigeria
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Abstract
The Vertical Electrical Sounding (VES) technique was used to investigate the sub-surface layering in Unguwan-Barde, Rido village and kipi-nari kaukau, developing residential areas close to Kaduna Refining and Petrochemical Company (KRPC) in Chikun local government area of Kaduna State. 24 sounding stations were carried out aimed at evaluating the aquifer characteristics of the study area such as aquifer thickness. The result of the interpreted VES data suggests that the area is underlain by three to four layers and are inferred to be the topsoil, weathered basement, fractured basement and fresh basement. The resistivity values ranges from 80.7 Ωm. to 3063.5 Ωm. The resistivity values of the layers at the VES stations are characterized by H. K, Q, and HK resistivity curves with 14 of them having the HK, 6 with H curve type and 4 with Q curve type, The overburden thickness distribution map shows the southeastern region is 24.6 – 36.7 m (Rido village and Unguwan-barde) While the northwestern region is deeper 37.0 – 48.3 m (Kipi-nari kaukau).These suggest that the southeastern region have more potential for water than the northwestern region. The aquifer has an average resistivity of 346.2 Ωm, the weathered/fractured basement, which is the aquiferious formation has an average thickness of 25.1m. The thickness and resistivity of the aquiferious layers suggests that they are viable and they is good potential for water.
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