Paramters | Min | Max | Mean | WHO, 2006 | Above permissible limit | BIS, 2003 | Above permissible limit | ||
Permissible | Excessive | Desirable | Permissible | ||||||
pH | 7.1 | 8.6 | 7.9 | 7.0 - 8.5 | >8.5 | 2 | 6.5 | 8.5 | 2 |
EC | 171 | 6358 | 1672 | 750 | - | 17 | 500 | - | 17 |
TDS (mg/L) | 386 | 1491 | 867 | 500 | 1000 | 16 | 500 | 2000 | 16 |
Calcium (Ca2+) (mg/L) | 64.5 | 94.7 | 71.9 | 75 | 100 | 01 | 75 | 200 | Nil |
Magnesium (Mg2+) (mg/L) | 21.5 | 92.5 | 57.0 | 30 | 100 | 19 | 30 | 100 | Nil |
Sodium (Na+) (mg/L) | 28.9 | 101.5 | 58.8 | 200 | - | Nil | - | 200 | Nil |
Potassium (K+) (mg/L) | 2.6 | 10.4 | 6.4 | 50 | 150 | Nil | - | - |
|
Sulphate () (mg/L) | 12.4 | 53.1 | 33.1 | 200 | 400 | Nil | 200 | 400 | Nil |
Chloride (Cl−) (mg/L) | 52 | 141 | 97.6 | 250 | 1000 | Nil | 250 | 1000 | Nil |
Zn | 0.01 | 0.13 | 0.07 | 5 | 15 |
|
|
|
|
Pb | 0.06 | 1.09 | 0.57 | NA | 0.05 |
|
|
|
|
Cr | 0.13 | 1.81 | 0.94 | NA | 0.05 |
|
|
|
|
Fe | 0.16 | 1.51 | 0.79 | 0.3 | 1.0 |
|
|
|
|
Cd | BD | 0.07 | 0.02 | 0.01 | 0.01 |
|
|
|
|
Cu | 0.59 | 2.35 | 1.7 | 0.05 | 1.5 |
|
|
|
|
Mn | 0.04 | 0.4 | 0.22 | 0.05 | 0.5 |
|
|
|
|