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Viability of marginal yield boreholes in selected geological formations in Ghana
conference contribution
posted on 2018-02-12, 15:08 authored by M.C. Ofori-Agyeman, C.S.K. Kpordze, G.K. AnornuThe Community Water and Sanitation Agency (CWSA) has adopted standards for borehole provision in rural
communities in Ghana. One of such standards is declaring as marginal or unsuccessful, borehole with yield
less than 0.81m3/hr. This has resulted in most marginal yield boreholes in fractured zone aquifers either
being abandoned for insufficient water, or are possibly ear marked for hydro fracturing to enhance their viability.
The study reviewed the use of marginal yield boreholes (0.30-0.78m3/hr) in order to specify criteria
for their sustainable use. Out of 3,025 boreholes drilled between 1995 & 2005 in the Voltaian, Granite and
Birimian, 438 were marginal yield boreholes which were viably used, each serving a population ranging
from 90 to 400. The results have shown that the viability of these boreholes depend on aquifer characteristics
such as the Specific Capacity, Transmissivity and Recovery rate and the population using the marginal
yield borehole. The paper specified the required ranges of the aquifer parameters and community sizes for
viable use of such boreholes.
History
School
- Architecture, Building and Civil Engineering
Research Unit
- Water, Engineering and Development Centre (WEDC)
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WEDC ConferenceCitation
OFORI-AGYEMAN, M.C. ... et al, 2008. Viability of marginal yield boreholes in selected geological formations in Ghana. IN: Jones, H. (ed). Access to sanitation and safe water - Global partnerships and local actions: Proceedings of the 33rd WEDC International Conference, Accra, Ghana, 7-11 April 2008, pp. 490-494.Publisher
© WEDC, Loughborough UniversityVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2008Notes
This is a conference paper.Other identifier
WEDC_ID:11437Language
- en
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