Parameter | Number of samples | Min | Max | Average | Standard deviation | Permissible ranges (WHO 1996) |
---|---|---|---|---|---|---|
pH Value | 32 | 7.3 | 8.9 | 8.0 | 0.4 | 6.5–8.5 |
TDS (mg/l) | 32 | 128.3 | 6701.0 | 2289.6 | 1837.5 | 1000 |
Ca (mg/l) | 32 | 10.0 | 2250.0 | 191.0 | 154.4 | 75 |
Mg (mg/l) | 32 | 2.5 | 527.9 | 71.3 | 67.8 | 150 |
Na (mg/l) | 32 | 188.0 | 1850.0 | 618.2 | 462.1 | 200 |
K (mg/l) | 32 | 1.0 | 78.2 | 16.7 | 18.9 | 12 |
HCO3 (mg/l) | 32 | 88.0 | 1037.1 | 269.9 | 196.3 | 500 |
SO4 (mg/l) | 32 | 12.0 | 1027.8 | 419.2 | 318.2 | 250 |
Cl (mg/l) | 32 | 102.6 | 3593.1 | 919.4 | 1001.4 | 250 |
Ni (µg/l) | 19 | 0.4 | 265.0 | 29.2 | 83.1 | 20 |
Co (µg/l) | 19 | 0.4 | 265.0 | 15.8 | 60.4 | 50 |
Pb (µg/l) | 20 | 2.7 | 30.8 | 9.0 | 7.5 | 50 |
Cd (µg/l) | 15 | 0.3 | 30.8 | 6.4 | 10.0 | 3 |
Cu (µg/l) | 15 | 0.4 | 3.8 | 0.9 | 1.1 | 5 |
Zn (µg/l) | 20 | 0.6 | 98.6 | 15.9 | 22.8 | 3000 |
Mn (µg/l) | 20 | 0.6 | 13.7 | 3.5 | 3.4 | 500 |
Fe (µg/l) | 20 | 1.0 | 490.4 | 131.3 | 156.4 | 300 |