Parameter

Minimum

Maximum

Average

S.D.

CV %

WHO Standard

Ca²⁺ (mg/l)

10.6

88.8

42.6

20.4

47.9

−

Mg²⁺ (mg/l)

0.5

30.0

9.0

6.3

69.7

50 - 500

Na⁺ (mg/l)

6.3

92.1

28.5

16.1

56.5

150 - 200

K⁺ (mg/l)

0.8

9.0

3.5

2.0

58.2

No-12

Cl⁻ (mg/l)

2.7

45.0

14.9

10.9

72.6

200 - 250

${\text{SO}}_4^{2-}$ (mg/l)

2.0

54.0

13.4

11.5

86.4

250

${\text{HCO}}_3^{-}$ (mg/l)

53.4

430.1

196.2

99.1

50.5

−

${\text{NO}}_3^{-}$ (mg/l)

2.1

113.1

20.7

21.7

105.2

50

F⁻ (mg/l)

0.1

2.9

1.0

0.6

58.7

1.5

T˚ (˚C)

16.5

32.9

28.0

3.0

10.6

pH

4.6

8.9

7.0

1.3

18.0