Assessment of Water Supply and Demand of Boditi Town

Hailu Gisha


This study was done to look at the gap between current water supply and demand of Boditi Town and to indicate the future water demand. VENSIM model to assess water supply, water balance method to estimate water loss, geometric growth method for population estimation, numerical criteria ranking method to assess water source option were used in the study. Based on the findings, the averaged current water consumption (L/c/d) of the Town, for public tap users, for private tap users and in-house connection were 14.7, 6.2, 20.4 and 37 respectively and the water supply coverage of the Town was at the level of 74%.The average water loss of the system rated to be 34.4%. The current water production was estimated to be 231,309 m3/year and the projected water demand for 2023 estimated to be 752,263 m3/year. This indicates that, water supply has to be raised by 520,954m3/year. The gap between water supply and demand can be narrowed through demand based supply and supplementing the existing supply with additional sources. Presence of additional water sources to supplement the current supply was indicated by measuring the annual discharges of four not yet unused springs: Seeson, Shaamina, Bolo and Woysha having annual discharges exceeding 80,000 m3/yr, 55,000 m3/yr, 400,000 m3/yr and 30,000 m3/yr respectively. It was identified that the performance of water supply system is low. Compared with Universal Access Plan, disparity between supply and demand should be closed through supplemental water source.

Keywords: Water supply, water demand, supply coverage, Boditi Town.

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ISSN (Paper)2224-5790 ISSN (Online)2225-0514

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