Location

pH

Turbidity (NTU)

Dissolved Oxygen

(mg/L)

Electrical conductivity (mS/cm)

Alkalinity (mg/L)

Total hardness (mg/L)

Chloride (mg/L)

Nitrate (mg/L)

Sulphate (mg/L)

Erunwen 1

5.28 ± 0.38

1.91 ± 1.70

6.42 ± 0.98

0.13 ± 0.04

18.30 ± 6.91

18.00 ± 15.28

8.50 ± 2.60

6.05 ± 5.30

5.17 ± 4.84

Erunwen 2

5.74 ± 0.16

2.03 ± 3.58

6.00 ± 0.88

0.65 ± 0.90

28.20 ± 4.95

14.67 ± 2.49

5.60 ± 1.46

3.93 ± 2.15

4.67 ± 4.17

Erunwen 3

5.49 ± 0.54

0.64 ± 0.34

5.95 ± 0.76

0.11 ± 0.05

18.60 ± 5.18

19.33 ± 10.27

4.00 ± 2.17

4.58 ± 2.31

3.33 ± 1.89

Agbele

5.23 ± 0.50

0.86 ± 0.37

6.24 ± 0.75

0.15 ± 0.06

24.60 ± 11.19

25.67 ± 28.52

8.20 ± 5.11

4.79 ± 2.73

4.90 ± 2.21

Kokoro Abu

4.23 ± 0.31

0.50 ± 0.41

5.94 ± 1.12

1.49 ± 0.26

15.88 ± 4.92

65.50 ± 17.97

69.60 ± 1.36

50.83 ± 11.46

5.00 ± 3.89

Eyita 1

6.01 ± 0.22

0.59 ± 0.49

6.21 ± 0.66

0.36 ± 0.15

34.40 ± 14.18

48.75 ± 18.61

8.30 ± 1.33

7.99 ± 1.42

2.00 ± 0.71

Eyita 2

5.68 ± 0.69

0.28 ± 0.13

6.28 ± 0.55

0.19 ± 0.07

19.30 ± 9.82

22.50 ± 13.35

8.00 ± 3.78

6.85 ± 1.84

3.33 ± 1.03

Eyita 3

6.07 ± 0.27

0.64 ± 0.62

6.40 ± 0.71

0.28 ± 0.08

34.60 ± 10.80

46.25 ± 34.66

6.50 ± 2.19

5.39 ± 1.39

2.00 ± 0.41

Ikosi Ketu

4.22 ± 0.43

2.20 ± 2.55

5.58 ± 0.67

1.10 ± 0.32

23.00 ± 12.39

58.50 ± 18.45

40.60 ± 3.81

35.86 ± 4.38

2.00 ± 0.41

Oshodi

4.75 ± 0.28

0.41 ± 0.29

5.59 ± 0.47

0.66 ± 0.25

24.30 ± 8.39

30.00 ± 26.84

35.90 ± 11.92

10.53 ± 1.47

2.50 ± 0.71

Ogudu

4.17 ± 0.26

1.05 ± 0.94

5.39 ± 0.94

2.51 ± 0.69

17.80 ± 4.57

95.50 ± 16.35

72.50 ± 47.22

73.18 ± 24.31

12.67 ± 8.72

Akesan 1

5.09 ± 0.29

0.16 ± 0.08

6.87 ± 1.87

0.47 ± 0.09

20.50 ± 7.81

25.00 ± 18.55

12.60 ± 3.34

18.69 ± 15.20

4.50 ± 2.86

Akesan 2

5.59 ± 0.22

0.42 ± 0.42

6.33 ± 1.70

0.34 ± 0.09

27.00 ± 6.00

27.50 ± 5.17

8.50 ± 2.59

8.54 ± 2.52

5.67 ± 2.05

Ilado

5.12 ± 0.41

0.39 ± 0.08

6.86 ± 1.27

0.13 ± 0.09

22.00 ± 8.86

19.00 ± 10.61

7.70 ± 1.69

3.95 ± 2.93

2.17 ± 0.85

Ogijo^*

5.70 ± 0.27

1.44 ± 1.92

6.12 ± 0.91

0.16 ± 0.07

25.70 ± 9.56

36.50 ± 23.51

8.20 ± 2.48

4.49 ± 1.51

2.83 ± 0.24

Ibafo^*

5.64 ± 0.31

0.26 ± 0.10

6.55 ± 1.30

0.74 ± 0.16

25.00 ± 5.70

57.50 ± 12.44

20.80 ± 2.04

24.43 ± 7.74

2.33 ± 0.94

Magboro^*

6.20 ± 0.16

0.28 ± 0.13

6.43 ± 1.63

0.39 ± 0.07

42.00 ± 12.08

35.70 ± 5.45

7.10 ± 4.00

6.76 ± 1.96

1.67 ± 0.47

Ilupeju Agbara^*

4.68 ± 0.40

0.23 ± 0.10

6.44 ± 1.43

0.33 ± 0.11

14.50 ± 6.78

14.00 ± 10.61

11.80 ± 3.41

8.93 ± 2.75

3.67 ± 1.25

Lusada 1^*

5.23 ± 0.29

0.24 ± 0.08

6.70 ± 1.30

0.16 ± 0.07

21.50 ± 7.52

21.50 ± 10.16

8.40 ± 3.44

4.36 ± 2.86

2.83 ± 1.03

Lusada 2^*

5.60 ± 0.31

0.30 ± 0.15

6.94 ± 1.46

0.19 ± 0.07

22.50 ± 8.37

19.00 ± 8.40

7.59 ± 2.59

4.68 ± 3.38

6.17 ± 6.25

WHO, 2011

6.5 - 8.5

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-

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-

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50.0

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