Parameter and Unit

Jan-March

April-June

July-Sept

Oct-Dec

WHO Standard

pH

7.17 ± 0.07

7.26 ± 0.07

7.27 ± 0.04

7.17 ± 0.15

6.5 - 8.5

Turbidity NTU

17.43 ± 1.44

21.17 ± 3.09

19.23 ± 1.91

18.30 ± 1.76

5

Temperature ˚C

25.17 ± 0.55

25.58 ± 0.20

25.60 ± 0.62

25.52 ± 0.72

30

Conductivity ms/cm

379.00 ± 9.17

362.00 ± 15.72

366.33 ± 41.93

317.67 ± 41.06

1000

Total Dissolve Solids mg/L

189.33 ± 7.02

180.67 ± 9.87

185.67 ± 22.23

174.67 ± 15.50

1000

Ammonia (NH₃₎ mg/L

0.76 ± 0.10

0.70 ± 0.18

0.92 ± 0.26

0.77 ± 0.18

0.5 (EU)

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

0.06 ± 0.04

0.04 ± 0.02

0.05 ± 0.02

0.05 ± 0.02

3

Nitrate (NO₃) mg/L

1.05 ± 0.03

1.04 ± 0.06

0.95 ± 0.12

0.96 ± 0.07

50

Chloride mg/L

15.54 ± 0.69

16.29 ± 0.44

15.37 ± 0.59

15.82 ± 0.76

250

Total Alkalinity mg/L

42.80 ± 4.76

37.30 ± 5.72

37.20 ± 4.85

35.70 ± 3.32

200

Total Hardness mg/L

80.67 ± 2.08

89.00 ± 8.19

79.67 ± 2.89

90.67 ± 10.07

500

Calcium Hardness mg/L

34.67 ± 3.79

36.87 ± 4.59

34.40 ± 3.17

43.67 ± 7.64

200

Magnesium Hardness mg/L

46.00 ± 2.00

52.13 ± 4.41

45.27 ± 0.64

47.00 ± 9.64

150

Calcium mg/L

13.87 ± 1.51

14.75 ± 1.84

13.76 ± 1.27

17.47 ± 3.06

200

Magnesium mg/L

13.34 ± 0.58

15.12 ± 1.28

13.13 ± 0.19

13.63 ± 2.80

150

Arsenic mg/L

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.01

0.00 ± 0.00

0.01

Copper mg/L

0.32 ± 0.08

0.15 ± 0.05

0.32 ± 0.25

0.04 ± 0.05

0.2

Lead mg/L

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

0.01

Iron (Total) mg/L

1.27 ± 0.12

1.31 ± 0.11

0.52 ± 0.38

0.68 ± 0.20

0.3

Zinc mg/L

0.54 ± 0.31

0.31 ± 0.10

0.43 ± 0.18

0.41 ± 0.04

5 (USA)

Fluoride mg/L

0.17 ± 0.05

0.69 ± 0.49

0.66 ± 0.65

0.18 ± 0.11

1.5

Sulphate mg/L

35.07 ± 12.43

42.88 ± 11.40

51.92 ± 11.43

59.15 ± 1.78

250

Phosphate mg/L

18.01 ± 5.71

19.96 ± 4.26

16.92 ± 6.40

10.96 ± 3.40

5

Aluminium mg/L

0.32 ± 0.24

1.44 ± 1.14

0.35 ± 0.06

0.23 ± 0.06

0.2 (EU)

Manganese mg/L

0.13 ± 0.05

0.24 ± 0.08

0.34 ± 0.04

0.30 ± 0.16

0.4