Hydro Geophysical Investigation of Shebe Watershed, Jimma, South Western Ethiopia
Journal Title: STAR Journal - Year 2012, Vol 1, Issue 3
Abstract
The need to prospect for additional ground water sources in Shebe watershed, Jimma, Shebe town water supply became inevitable because of the fact that the existed water supply and the quality of the water with current population and the population for the next 20 years is not enough and it must also be clean. The paper assesses Geological, Hydrogeophysical and groundwater potential site of Shebe watershed. Desk study, field study and geophysical survey were carried out with the objective of defining the most favorable location for borehole in shebe watershed. Survey specification and instruments used in this study work was latest instrument SAS 4000 resistivity meter with electrode spacing of AB/2=>750m and GPS. Data Analysis and interpretation has been done through different software such as Arc GIS, surfer, and GWW, IPI2win, & Global mapper. Thus implementation of sustainable potable water supply through source identification; how to supply safe/ potable water for the town; identification of recharge-discharge areas; depth to the water bearing zone; characterizing the aquifer using resistivity distribution were determined. The hydrogeological study revealed that the area consists of recent sediment deposits and volcanic rocks. Volcanic rocks are weathered and fractured which is suitable for groundwater abstraction through deep well drilling and whereas recent sediment deposits may be suitable for shallow groundwater abstraction. From both hydrogeophysical investigation VES1 andVES2 results, it was safely concluded that the target depth for well at Bake Qobo site1 of Shebe watershed should not be less than 140m & from the result of VES2 at the Bake Qobo site2, because the fifth layer is confined between the two aquifer layers, the optimum depth for the water bearing zone must not be less than 170m.
Authors and Affiliations
Geremew Lamessa| Department of Earth and Environmental Science, College of Natural and Computational Sciences, Wollega University, Nekemte, Ethiopia
Keywords
Related Articles
- EP ID EP9479
- DOI http://dx.doi.org/10.4314%2Fstar.v1i3.98912
- Views 308
- Downloads 22
Participatory Barley Variety Selection and Farmers’ Selection Criteria in the Bale Highlands of Southeastern Ethiopia
The aim of the study was to identify farmers’ selection criteria, preferences and generate baseline information on the importance of participatory barley breeding in Southeastern part of Ethiopia. The experiment was...
EFL Teachers’ Self-Efficacy Beliefs, Pedagogical Success and Students’ English Achievement: A Study on Public Preparatory Schools in Bahir Dar Town, Ethiopia
The purpose of this research was threefold. Firstly, EFL teachers’ in the study were tested about their self-efficacy belief levels internally and about their pedagogical success externally by their students. Secondl...
Structure and Regeneration Status of Gedo Dry Evergreen Montane Forest, West Shewa Zone of Oromia National Regional State, Central Ethiopia
This study was conducted on Gedo Dry Evergreen Montane Forest in West Shewa Zone of Oromia National Regional State, 182-196 km west of Addis Ababa (Finfinne). The objective of the study was to determine structure and r...
Forest Carbon Stocks and Variations along Altitudinal Gradients in Egdu Forest: Implications of Managing Forests for Climate Change Mitigation
The role of forests in mitigating the effect of climate change depends on the carbon sequestration potential and management. Although a number of studies have been done on carbon stock estimations, the influence of env...
Prevalence of Camel Trypanosomosis at Selected Districts of Bale Zone, Southern Ethiopia
Across-sectional study was conducted from November 2013 to March 2014 at selected districts of Bale zone, Oromia Regional States of Ethiopia to determine the prevalence of camel trypanosmosis and assess associated pote...