Borehole Drilling, Usage, Maintenance and Sustainability in Ado- Ekiti, Nigeria

OYEBODE, Oluwadare Joshua and OYEGOKE, Sunday Olakunle and OLOWE, Kayode Olufemi and ADEBAYO, Victor Babafemi (2015) Borehole Drilling, Usage, Maintenance and Sustainability in Ado- Ekiti, Nigeria. American Journal of Engineering Research (AJER), 4 (9). pp. 1-12. ISSN Online: 2320-0847, Print: 2320-0936

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Abstract

Boreholes are an effective way of tapping into the water bearing aquifer below the ground and pumping the water to the surface. Boreholes for extracting water consist essentially of a vertically drilled shaft, a strong lining (casing) to prevent collapse of the walls, which includes a means of allowing clean water to enter the borehole space (screen), surface protection, and a means of extracting water. This study examines the common drilling techniques, usage, maintenance and sustainability of water boreholes in Ado-Ekiti. Pumping tests were carried on several boreholes in Ado-Ekiti to acquire a general idea of the yield of boreholes in order to proffer viable solution. Hydro geological maps of the area are studied to help in the understanding of the sub surface formation of the region. Questionnaires were also developed and administered in the assessment of borehole usage and maintenance. The study area is characterized by crystalline basement complex rock of low porosity and permeability. Boreholes have to be properly designed, professionally constructed and carefully drilled. It has been discovered that the area generally has low groundwater potential and that there is a high dependence on groundwater as a source for potable water.

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