Assessment of Adequacy of Available Streams in Okada/Environs for Viable Source of Sustainable Water Supply

Abstract:

The study area comprises of Okada Town and its environs (having combined base population estimate of 78,000) are located in the South Western part of Edo State in Nigeria. The study area is primarily an agricultural and commercial area with prospects of becoming a big town with attendant water supply problems. This study assessed the adequacy of available streams as possible viable sources of water supply with the objective to assess the existing water facilities, capacity and production levels. And further, to carry out comparative analysis of projected target water demand and minimum stream flow. The study area falls under urban water schemes, although in terms of economic and commercial activities, it has the character of rural and semi-urban composition. The 20-year projected population of target water consumers is 124,800 using arithmetic growth rate pattern and 140,877 persons using geometric pattern, both with growth rate of 3%. The 20-projected ultimate water supply is 23,250 m³/day. The existing water schemes have total capacity of 7,600 m³ and effective capacity of 2,512 m³.The present water supply of 1,618 m³/day is very grossly inadequate when compared totarget water demand. Okada; Iguedo and Okhai Streams are the three source streams. The combined and reliable stream yields is226,534m³/day and 103,886m³/day respectively. The maximum stream abstraction is 81,455m³/day. Analysis of water demand, stream yield and projected water demands showed adequacy of the source streams as possible viable sources of water supply.

• Periodical: Advanced Materials Research (Volume 824)
• Pages: 605-612
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.824.605
• Online since: September 2013
• Authors: Avemaria Matthew Eze, Maryann Ogoamaka Ezugwu, J.C. Aboloje, Tonye G. Okorie
• Keywords: Discharge, Population, Stream, Supply, Water Demand

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