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