| Sample ID | Total viable bacterial count (TVBC) cfu/ml | |
| Winter | Summer | |
| 1 | 5 × 106 | 5.6 × 107 |
| 2 | 1.8 × 107 | 1.1 × 107 |
| 3 | 3 × 106 | 8 × 106 |
| 4 | 1.4 × 107 | 1.7 × 107 |
| 5 | 3.2 × 106 | 2 × 107 |