Total coliform counts ranged between 1.2 x 104 and 6.4 x 104
cfu/ml for Tshwane River water, between 1.18 x 103 and 4.9 x 104
cfu/ml for Lefatlheng Well water, between 4.7 x 102 and 1.0 x 103
cfu/ml for Tlhaloganyo rain water, and between 1.1 x 102 and
2.1 x 103 cfu/ml for Tlhaloganyo groundwater (Table 2). The
counts were above 5 cfu/100 ml, which is the maximum recommended
limit for no risk (DWAF, 1996). The results suggest that