Region | Sample-1 | Sample-2 | Sample-3 | Average |
Sadar | 1.53 × 105 CFU/mL (1000 feet deep supply water sample) | 1.98 × 106 CFU/mL (500 feet deep motor water sample) | 1.77 × 106 CFU/mL (450 feet deep tube well water sample) | 6.35 × 106 CFU/mL |
Kabirhat | 8.5 × 106 CFU/mL (60 feet deep tube well water sample) | 1.13 × 105 CFU/mL (70 feet deep tube well water) | 1.58 × 106 CFU/mL (150 feet deep tube well water) | 7.13 × 106 CFU/mL |
Chatkhil | 3.1 × 106 CFU/mL (35 feet deep tube well water sample) | 5.8 × 106 CFU/mL (256 feet deep tube well water sample) | 8.9 × 107 CFU/mL (800 feet deep tube well water sample) | 3.26 × 106 CFU/mL |