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