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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/30426

Title: Making boreholes work - rehabilitation strategies from Angola
Authors: Godfrey, Sam
Ball, Peter
Issue Date: 2003
Publisher: © WEDC, Loughborough University
Citation: GODFREY, S. and BALL, P., 2003. Making boreholes work - rehabilitation strategies from Angola. IN: Harvey, P. (ed). Towards the millennium development goals - Actions for water and environmental sanitation: Proceedings of the 29th WEDC International Conference, Abuja, Nigeria, 22-26 September 2003, pp. 190-192.
Abstract: In areas of the world where primary water supply is obtained from boreholes drilled in fine grained drift, there is potential for ‘sand’ or ‘media’ intrusion. This can result in clogging of borehole screens, damage to submersible pumps and blocked handpumps. Many boreholes encountering this problem of media intrusion are abandoned due to expensive rehabilitation procedures. This paper discusses field solutions adopted in Kuito, Angola where boreholes are highly susceptible to fine media ingress. Findings presented are based on the authors field experience between 1993 and 2002 whilst working for Oxfam GB in Angola. It outlines three remedial measures, namely, internal gravel packs, geotextile stockings and telescoped borehole design.
Description: This is a conference paper.
Version: Published
URI: https://dspace.lboro.ac.uk/2134/30426
Appears in Collections:WEDC 29th International Conference

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