| Samples | Total mesophilic aerobic flora (CFU/ml) | Total coliforms (CFU/ml) | Thermo-tolerant Coliforms (CFU/ml) | Yeasts and mold (CFU/ml) |
| Ouagadougou | ||||
| 1 | 7.1 × 106 | 1.5 × 105 | 7.8 × 104 | 8.0 × 104 |
| 2 | 1.7 × 107 | 7.9 × 102 | 5.5 × 102 | 3.9 × 104 |
| 3 | 5.5 × 105 | 2.0 × 104 | 1.3 × 104 | 9.8 × 103 |
| 4 | 6.5 × 107 | 2.1 × 106 | 1.9 × 106 | 1.1 × 106 |
| 5 | 2.6 × 106 | 6.9 × 104 | 5.8 × 104 | 2.9 × 104 |
| 6 | 8.6 × 105 | 6.9 × 104 | 1.1 × 104 | 1.4 × 104 |
| 7 | 3.7 × 106 | 6.8 × 104 | 6.6 × 104 | 6.2 × 104 |
| 8 | 1.8 × 108 | 2.5 × 106 | 4.7 × 105 | 4.7 × 105 |
| 9 | 1.3 × 106 | 1.3 × 106 | 2.7 × 105 | 2.3 × 104 |
| 10 | 1.8 × 106 | 3.3 × 104 | 6.7 × 103 | 5.7 × 104 |
| Mean ± SD | 2.80 ± 5.69 × 107 | 6.31 ± 9.17 × 105 | 2.87 ± 5.86 × 105 | 1.88 ± 3.31 × 105 |
| Bobo Dioulasso | ||||
| 1 | 5.6 × 106 | 3.4 × 105 | 1.1 × 104 | 7.7 × 103 |
| 2 | 5.0 × 106 | 2.7 × 104 | 1.2 × 103 | 1.0 × 105 |
| 3 | 6.5 × 105 | 1.3 × 104 | 2.7 × 103 | 1.7 × 103 |
| 4 | 3.5 × 106 | 7.2 × 103 | 6.1 × 103 | 7.0 × 103 |
| 5 | 2.7 × 106 | 2.0 × 104 | 1.8 × 104 | 3.5 × 104 |
| 6 | 8.9 × 106 | 8.7 × 103 | 4.0 × 103 | 8.4 × 104 |
| 7 | 6.6 × 106 | 2.5 × 103 | 2.1 × 103 | 2.3 × 105 |
| 8 | 1.0 × 106 | 5.0 × 103 | 4.3 × 103 | 7.1 × 103 |
| 9 | 1.5 × 105 | 1.6 × 103 | 5.7 × 102 | 8.2 × 103 |
| 10 | 6.6 × 105 | 3.3 × 104 | 2.0 × 104 | 1.9 × 104 |
| Mean ± SD | 3.48 ± 2.98 × 106 | 4.58 ± 10.4 × 104 | 7.00 ± 7.00 × 103 | 5.00 ± 7.21 × 104 |