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Table 3

Summary of borehole results from northern Ghana

ParametersNorthern RegionUpper West RegionUpper East RegionMean values
Depth of weathering (D) m 42 27 29 31 
Depth of water-strike (h) m 23 15 18 19 
Saturation depth (H = D-h)m 19 12 11 14 
Total number of boreholes drilled (T) 27 22 32 81 
Total number of successful boreholes (S) 24 21 31 76 
Total number of unsuccessful boreholes (U) 
Probability of having groundwater P = S/T 0.88 0.99 0.99 0.95 
ParametersNorthern RegionUpper West RegionUpper East RegionMean values
Depth of weathering (D) m 42 27 29 31 
Depth of water-strike (h) m 23 15 18 19 
Saturation depth (H = D-h)m 19 12 11 14 
Total number of boreholes drilled (T) 27 22 32 81 
Total number of successful boreholes (S) 24 21 31 76 
Total number of unsuccessful boreholes (U) 
Probability of having groundwater P = S/T 0.88 0.99 0.99 0.95 
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