Parameter and Unit

Jan-March

April-June

July-Sept

Oct-Dec

WHO Standard

pH

7.38 ± 0.13

7.54 ± 0.12

7.40 ± 0.17

7.50 ± 0.1

6.5 - 8.5

Turbidity NTU

71.92 ± 19.73

399.12 ± 103.16

467.63 ± 64.13

371 ± 96.21

5

Temperature ˚C

25.47 ± 0.47

25.02 ± 0.34

25.95 ± 1.00

26.61 ± 0.56

30

Conductivity ms/cm

295.29 ± 16.36

305.58 ± 33.97

306.97 ± 52.1

288.59 ± 40.15

1000

Total Dissolve Solids mg/L

206.71 ± 11.45

213.91 ± 23.78

214.88 ± 36.55

202.02 ± 28.11

5

Ammonia (NH₃₎ mg/L

0.59 ± 0.07

1.52 ± 0.63

1.92 ± 0.67

1.46 ± 0.44

0.5 (EU)

Nitrite ( ${\text{NO}}_2^{-}$ ) mg/L

0.52 ± 0.10

0.52 ± 0.11

1.22 ± 1.22

0.52 ± 0.11

3

Nitrate (NO₃) mg/L

16.05 ± 2.05

22.57 ± 4.50

26.22 ± 3.32

21.29 ± 1.85

50

Chloride mg/L

20.33 ± 1.52

24.00 ± 1

18.33 ± 1.52

17.67 ± 2.08

250

Total Alkalinity mg/L

61.00 ± 3.46

59.33 ± 2.08

72.67 ± 11.24

68 ± 10

200

Total Hardness mg/L

83.67 ± 4.50

84.00 ± 2.64

78.33 ± 2.51

85 ± 4.35

500

Calcium Hardness mg/L

53.00 ± 8.18

45.00 ± 7

51.33 ± 4.50

49.67 ± 2.08

200

Magnesium Hardness mg/L

30.67 ± 10.26

39.00 ± 9.64

27 ± 3.46

35.33 ± 5.51

150

Calcium mg/L

21.20 ± 3.27

18.00 ± 2.8

20.53 ± 1.80

19.87 ± 0.83

200

Magnesium mg/L

8.89 ± 2.97

11.31 ± 2.79

7.83 ± 1.00

10.25 ± 1.59

150

Arsenic mg/L

0.00 ± 0

0.00 ± 0

0.00 ± 0

0.00 ± 0

0.01

Copper mg/L

0.43 ± 0.19

0.26 ± 0.09

0.40 ± 0.16

0.34 ± 0.07

0.2

Lead mg/L

0,00 ± 0

0.01 ± 0.01

0.00 ± 0

0.00 ± 0

0.01

Iron (Total) mg/L

1.61 ± 0.88

1.95 ± 0.61

1.71 ± 0.92

1.45 ± 0.22

0.3

Zinc mg/L

0.46 ± 0.16

0.41 ± 0.13

0.42 ± 0.11

1.45 ± 0.64

5 (USA)

Fluoride mg/L

0.79 ± 0.20

0.82 ± 0.11

0.68 ± 0.15

0.52 ± 0.20

1.5

Sulphate mg/L

18.11 ± 4.33

10.64 ± 1.64

18.59 ± 1.93

15.44 ± 2.72

250

Phosphate mg/L

18.51 ± 0.88

27.02 ± 5.91

27.47 ± 4.57

25.22 ± 2.27

5

Aluminium mg/L

0.45 ± 0.15

0.41 ± 0.08

0.43 ± 0.18

0.83 ± 0.10

0.2 (EU)

Manganese mg/L

0.45 ± 0.10

0.64 ± 0.16

0.50 ± 0.10

0.52 ± 0.21

0.4