AbstractAbstract: Seventeen Vertical Electrical soundings (VES) using the Schlumberger configuration with current electrode spacing of AB/2 = 80m were carried out in Song and environs of Adamawa State of Nigeria to study the groundwater potential. Sixteen VES showed a three-layer earth model; while the remaining one has four-layer earth model. The average thickness of the first layer is 2m with a mean resistivity of 75.14Ωm; representing the top soil and clay material. The second layer has an average thickness of 12.09m with a mean resistivity of 50.0Ωm. This layer is unconsolidated and highly weathered/fractured basement. The average resistivity value of the third layer is 5150Ωm and represents the fresh basement. Water samples were collected from Seven Boreholes (BH) and four Hand-Dug wells (HDW). The overall assessment of the sampled water in the area indicates an average pH value of 5.8, mean temperature of 28.96°C, an average turbidity value of 0.453NTU, and with a mean conductivity value of 159.39µs/cm. The water is mostly acidic with a moderate temperature, and turbidity. Total hardness has an average value of 98.78mg/l indicating a moderately soft water quality. All the Hand-Dug wells in the study area have high concentration of Nitrate and total Coliform count of 50.93mg/l to 67.17mg/l and 12cfu/ml to 27cfu/ml respectively. The high value can be attributed to anthropogenic activities such as chemical fertilizer application and indiscriminate dumping of house hold solid waste in the area as well as animals and human faeces. The high concentration of total coliform count was also observed in BH4 because of the shallow depth. Apart from the HDW and BH4 that are of shallow depth, the groundwater is generally good for human as well as industrial and agricultural uses.
Topfer K. Editorial comments on freshwater. Our Planet 1998; 9(4): 3.
Omosuyi GO. Geoelectric assessment of groundwater prospect and vulnerability of overburden aquifers at Idanre, South Western Nigeria; Ozean Journal of Applied Sciences 2010; 3(1): 19-28.
Olorunfemi MO and Fasuyi, SA. Aquifer types and the geoelectric/ hydrogeologic characteristics of part of the Central basement terrain of Nigeria (Niger State). J Afr Earth Sci 1993; 16: 317-403. http://dx.doi.org/10.1016/0899-5362(93)90051-Q
Olayinka AI. Non uniqueness in the interpretation of bedrock resistivity from sounding curves and hydrological implications. J Nig Assoc Hydro Geol 1996; 7(1 and 2): 49- 55.
Edet AE and Okereke CS. Assessment of hydrogeologic conditions in basement aquifers of the Precambrian Oban massif, southeastern Nigeria. Journal of applied Geophysics 1997; 36: 195-204. http://dx.doi.org/10.1016/S0926-9851(96)00049-3
Nur A and Ayuni KN. Hydro-geophysical study of Michika and environs, northeast Nigeria. International Journal of the Physical Sciences 2011; 6(34): 7816-7827.
Nur A and Matazu HI. Hydrogeo-electrical Investigation of Fufore and its Environs of Adamawa State, North-eastern Nigeria. International Journal of Earth Sciences and Engineering (IJEE), Hyderabad, India 2011; 04 (5): 796-806.
Adekeye JD and Ntekim EE. The geology of Song area in southern Hawal massif, N.E Nigeria. Zuma jour Pure and Applied Sci 2004; 6(2): 145-157.
Fitton JG. Benue Trough and Cameroun line. A migrating Rift system in West Africa; Earth and planetary Sci. Letters 1980; 51: 473-138. http://dx.doi.org/10.1016/0012-821X(80)90261-7
Fitton JG. Active versus passive continental rifting; evidence from West Africa rift system. Tectonophysics 1983; 94: 473- 481. http://dx.doi.org/10.1016/0040-1951(83)90030-6
Barker R, Rao TV and Thangarajan M. Delineation of contaminant zone through electrical imaging technique. Curr Sci 2001; 81(3): 277-283.
Todd DK. Groundwater hydrogeology.2nd edition John Wiley and sons. New York 1980: 535.
WHO. Guidelines for Drinking Water Quality, 4th ed. World Health Organization, Geneva 2011.
Federal Survey Nigeria. Topographical map of Zummo (Sheets 176, NW) Nigeria, 1968.
Bassey NE. Structural geological mapping and interpretation of landsat and aeromagnetic data over parts of hawal basement complex, northeast nigeria. Doctoral Thesis Abubakar Tafawa Balewa University Bauchi 2006.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2015 A. Yakubu; A. Nur