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Ethiopia: CCTV well field review 2009

Ball, D.F.. 2009 Ethiopia: CCTV well field review 2009. Nottingham, UK, British Geological Survey, 29pp. (CR/09/080N) (Unpublished)

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Abstract/Summary

This report covers data collection and field work for the technical aspects of the World Bank-funded Joint Governance Assessment and Measurement Initiative (JGAM) in Ethiopia. The work comprised a survey on rural borehole drilling in Ethiopia, in support of the Water Sector Diagnostic. It was carried out as part of an initiative to assess the degree of corruption within the water sector in the country. • The objective of the technical aspect of the work was to compare the variables of location, depth, diameter, construction across the contract specification, completion report, invoice and actual field data. • A total of 26 boreholes were visited in order to gather information. These boreholes were funded by a variety of funding agencies and all were constructed within the past 3 years. A borehole CCTV camera was used to measure well screen and casing lengths, plus borehole depth. • Out of the sample, 20 boreholes had both documentation available and a CCTV survey undertaken successfully. Of these, 12 had depths within 90% of those stated in the documentation. A further 6 were between 79% and 90% and were considered to have suffered from silting-up. Only two boreholes had surveyed depths less than 70% of those originally documented and were considered to be outside the range of normal silting. • Overall, the standard of reporting and borehole construction for shallow boreholes fitted with hand pumps is very good. It was found that there were some issues with poor well head completion where concrete plinths had cracked, or where inadequate drainage channels had been installed.

Item Type: Publication - Report (UNSPECIFIED)
Programmes: BGS Programmes 2009 > Groundwater science
Funders/Sponsors: World Bank
Additional Information. Not used in RCUK Gateway to Research.: This item made open by author March 2014. This item has been internally reviewed but not externally peer-reviewed
Additional Keywords: GroundwaterBGS, Groundwater, International development
Date made live: 15 Apr 2014 15:56 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/506759

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