This study of 302 boreholes in Ghana aims to investigate rapid-onset borehole failure in relation to field data typically available following drilling and development. The study shows that the likelihood of borehole failure increases by a factor of six when drilling occurs during the wet season, and discovers a strong correlation between monthly precipitation and respective failure rates for boreholes drilled in each month.
HARVEY, P. (2004): Borehole Sustainability in Rural Africa. An Analysis of Routine Field Data. (= (=Proceedings of the 30th WEDC Conference, Vientiane, Lao PDR) ). URL [Accessed: 31.07.2012]