Chemical parameters

Weights (wi)

Relative weight (Wi)

WHO Drinking Standards (Si)

pH

3

0.09

6.5-8.5

CO₃ + HCO₃ (mg/l)

1

0.03

120

TDS (mg/l)

5

0.15

500

Ca (mg/l)

3

0.09

75

Mg (mg/l)

3

0.09

50

TH (mg/l)

2

0.06

180*

Cl (mg/l)

5

0.15

250

Na (mg/l)

4

0.12

200

K (mg/l)

2

0.06

12

SO₄ (mg/l)

5

0.15

250

Total

33

1.00

−