Region | Sample-1 | Sample-2 | Sample-3 | Average |
Sadar | 350 ppm (1000 feet deep supply water sample) | 890 ppm (500 feet deep motor water sample) | 423 ppm (450 feet deep tube well water sample) | 554.33 ppm |
Kabirhat | 744 ppm (60 feet deep tube well water sample) | 376 ppm (70 feet deep tube well water) | 527 ppm (150 feet deep tube well water) | 549 ppm |
Chatkhil | 64.1 ppm (35 feet deep tube well water sample) | 260 ppm (256 feet deep tube well water sample) | 52.3 ppm (800 feet deep tube well water sample) | 125.47 ppm |