Table 1.
The mean microbial counts for ground, surface and chlorinated water sources.
| Water source | E.coli (Cfu/ml) | Total coliforms (Cfu/ml) | Staphylococcus (Cfu/ml) | Clostridium (Cfu/ml) |
|---|---|---|---|---|
| Borehole | 13.91±9.16 a | 2166±95.24ab | 674±18.21a | 1368±33.78a |
| Spring | 35.92±8.89a | 4955±29.92abc | 895±24.14a | 8177±29.55b |
| Tap water | 6.0±0.54 a | 2723±56.29abc | 308±8.86a | 131±13.92a |
| Shallow well | 15.26±5.86a | 5185±66.83abc | 2183±25.47a | 1020±22.16a |
| Rain | 160.0±14.14b | 170±14.14a | 2450±12.13a | 1500±27.11ab |
| River | 42.59±7.21a | 2079±48.59ab | 448±45.95a | 878±16.48a |
| Trough | 0.0±0.0 a | 14012±77.5 ac | 1207±16.18a | 3513±15.87ab |
| Pan | 6.25±0.75 a | 1635±88.21a | 8.0±0.57a | 1750±26.55ab |
(1) Values are means of more than 10 determinations ± standard deviations.
(2) Values with the same letters on the same column are not significantly different at 5 % level of significance.