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 (WD/OS/88/001) (Unpublished)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
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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