Region | Sample-1 | Sample-2 | Sample-3 | Average |
Sadar | 463 ppm (1000 feet deep supply water sample) | 1177 ppm (500 feet deep motor water sample) | 559 ppm (450 feet deep tube well water sample) | 733 ppm |
Kabirhat | 983 ppm (60 feet deep tube well water sample) | 497 ppm (70 feet deep tube well water) | 696 ppm (150 feet deep tube well water) | 725.33 ppm |
Chatkhil | 84.5 ppm (35 feet deep tube well water sample) | 343 ppm (256 feet deep tube well water sample) | 69.2 ppm (800 feet deep tube well water sample) | 165.57 ppm |