Open AccessFEASIBILITY ASSESSMENT FOR DRILLING AND REHABILITATION OF WATER SUPPLY BOREHOLE SCHEME AT AWARO CAMPUS, AMBO UNIVERSITY
Author(s) -
Tibebu Tsegaye Zigale,
Basavaraj paruti
Publication year - 2021
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2021.v05i12.029
Subject(s) - borehole , drilling , rehabilitation , interview , observational study , drilling fluid , geological survey , petroleum engineering , environmental science , engineering , water resource management , geology , geotechnical engineering , medicine , mechanical engineering , paleontology , pathology , political science , law , physical therapy
Groundwater is a crucial element to watersystems and supplies of small to large communitiesworldwide. This study is based on review of relevantprevious studies, primary data collected throughcomprehensive field survey in the project area AmboUniversity Institute of Technology, secondary datagathered from various offices at regional levels, andconsultations with project affected communities,Administrators, key stakeholders, NGOs and relevantexperts. The cause of failure of the bore well is assessedand parts of the scheme component that needmaintenance, repair and replacement in addition to waterquality condition is estimated in monetary value toundertake systematic cost benefit analysis to decidewhether to drill new boreholes or rehabilitate existingsites. Document analysis, interviewing, group discussionand reconnaissance survey/observational approach is usedto gather data and information. The Costs and benefits ofborehole drilling and rehabilitation analysis was estimated.The total cost was estimated at US$ 31,282 in the boreholedrilling and US$ 10,167 in the borehole rehabilitation. Thetotal economic benefit was estimated to be US$ 140,385 for20 years in the borehole drilling and US$ 28,513 for 10years in the borehole rehabilitation. The cost-benefit ratiowas 4.5 for borehole drilling and 2.8 for boreholerehabilitation. The output of this analysis revealed thatconstructing the new borehole is better than rehabilitatingthat would save the institute from wastage of time andcapital planned for rehabilitation in addition tosustainability and reliability function of the borehole forlong period of time