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Promotion of manual drilling in Guinea Bissau: mapping suitable zones and estimating the potential

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conference contribution
posted on 12.02.2018, 15:11 by Fabio Fussi, Fredrik Asplund, M. Caruba, Letizia Fumagalli, M. Rottier, Tullia Bonomi
Guinea Bissau has made large strides in water supply, but still 35% of villages have no access to safe water. UNICEF is promoting alternative solutions to ensure a proper water supply in these small communities, for example manual drilling. For these reason a mapping study to identify suitable zones for these techniques has been carried out in 2016, using existing groundwater data and the experience from local experts. 88% of Guinea Bissau is considered with feasible hydrologeogical conditions for manual drilling. In 63% of the regions where this technique is applicable, it is adequate for villages of small-medium size. Taking into consideration the results of this study, it seems evident that the promotion of manual drilling could be a valid alternative to improve the situation of access to safe water especially in rural areas.



  • Architecture, Building and Civil Engineering

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  • Water, Engineering and Development Centre (WEDC)

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WEDC Conference


FUSSI, F. ... et al, 2017. Promotion of manual drilling in Guinea Bissau: mapping suitable zones and estimating the potential. IN: Shaw, R.J. (ed). Local action with international cooperation to improve and sustain water, sanitation and hygiene (WASH) services: Proceedings of the 40th WEDC International Conference, Loughborough, UK, 24-28 July 2017, Paper 2760, 5pp.


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