Basement Aquifer Project : Progress Report for 1987-1988
Wright, E.P.. 1988 Basement Aquifer Project : Progress Report for 1987-1988. British Geological Survey, 131pp. (WD/OS/88/001) (Unpublished)
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Abstract/Summary
Crystalline rocks have a widespread extent, approximately 30% in global cover, and are of particular importance in the tropical and subtropical regions of Africa, South America and South Asia (Figure 1.1). They occur in a wide variety of physiographic and climatic regions. Current and planned developments of crystalline rock aquifers are on a large scale and overall very costly. Because of the generally low productivity of boreholes and wells in these aquifers, development is mainly for rural water supply using a point source distribution. Basic service cover (25 lcpd) for Africa's 360 million people averages 38% and includes only 26%* of the rural population. Up to a million water points may be needed to simply meet Decade basic requirements with costs in the range 10-20 thousand million dollars. It is estimated that the majority of the rural population of Sub-Saharan Africa will have to rely on groundwater from basement aquifers for basic domestic supply. To summarise the reasons for the importance of the basement aquifers: widespread extent, relatively low cost of exploitation because of shallow depth to groundwater; in many areas no alternative sources of supply.
Item Type: | Publication - Report |
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Funders/Sponsors: | Overseas Development Administration |
Additional Information. Not used in RCUK Gateway to Research.: | This item has been internally reviewed but not externally peer-reviewed |
Additional Keywords: | GroundwaterBGS, Groundwater, International development |
Date made live: | 30 Jun 2014 15:21 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/507577 |
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