S/N

Parameter (s)

River water Elem Sagama

Well water Soku town

River water (Soku Gas Plant)

River water (Pangapiki)

River water

(Soku Jetty)

WHO

1.

Nickel, Ni (mg/l)

<0.001

<0.001

<0.001

<0.001

<0.001

<0.01

2.

Chromium, Cr (mg/l)

<0.001

<0.001

<0.001

<0.001

<0.001

<0.05

3.

Cadmium, Cd (mg/l)

<0.001

<0.001

<0.001

<0.001

<0.001

0.005

4.

Lead, Pb (mg/l)

<0.001

<0.001

<0.001

<0.001

<0.001

0.01

5.

Zinc, Zn (mg/l)

0.028

0.056

0.040

0.021

0.048

1.0

6.

Calcium, Ca (mg/l)

0.579

52.793

16.198

0.502

53.502

1.0

7.

Magnesium, Mg (mg/l)

0.354

8.927

41.509

0.539

42.574

0.2

8.

Sodium, Na (mg/l)

1.247

63.337

601.45

1.970

2259.80

<200

9.

Potassium, K (mg/l)

0.672

20.949

25.158

0.508

102.745

0.01

10.

PAH (mg/l)

0.379

<0.001

0.223

0.139

0.128

0.007

11.

THC (mg/l)

117.3

<0.001

23.8

5.71

2.66

12.

Phosphate, ${\text{PO}}_4^{\text{3}-}$ (mg/l)

1.73

2.0

0.31

1.30

0.79

13.

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

7

68

558

5

1,018

250

14.

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

1.2

<0.1

0.2

0.7

0.3

10.0

15.

BOD (mg/l)

0.032

0.015

0.540

0.165

0.888

10

16.

DO (mg/l)

5.09

4.48

5.31

4.58

4.94

6.0

17.

Alkalinity (mg/l)

16

0

26

15

46

200

18

Hardness (mg/l)

9

395

1100

8

3300

100 - 300

19

Turbidity (NTU)

20

40

40

<4

20

(TDS, ppm)

101

680

540

30

ADL

>600

21

ORP (Mv)

97

226

267

94

485

22

pH

7.9

7.71

7.03

7.37

7.43

6.6 - 8.5

23

Salinity (g/kg)

10

4.80

380

20

8160

25

Temp (˚C)

28.1

31

25

30.6

28.3

27 - 29

26

Electrical Conductivity (uS/cm)

23.9

98.0

87 - 7

47.2

16 - 40