S/N

Parameter

A

B

C

D

E

BSW1

RSW2

BSW3

WHO

FWS

1

E_c (µS/cm)

133

121

140

137

142

205

118

230

NS

100 - 1000

2

pH

6.81

6.85

6.8

6.79

6.87

7.1

6.95

7.07

6.5 - 8.5

6.5 - 9.5

3

DO (mg/L)

6

7

6.2

5.8

6

4

8

5

6.5 - 8.5

<5

4

BOD (mg/L)

5

4.5

4.3

4

6

3

4.7

3.7

6

6 - Mar

5

TH CaCO₃ (mg/L)

295

270

255

280

322

330

400

110

600

50 - 150

6

Alkalinity (mg/L)

132

116

125

128

140

148

190

80

600

50 - 150

7

Temp. (˚C)

27

29

28

28

28

27.5

29

26.9

Ambient

25 - 30

8

TDS (mg/L)

330

500

458

552

407

118

829

120

500

-

9

Turbidity (NTU)

130

270

300

286

159

10

620

5

10

-

10

Calcium (mg/L)

24.2

19.34

20.41

20.5

23.64

32.3

31.03

26.26

200

25 - 100

11

Sodium (mg/L)

127

166

158

160

132

3

8.8

3.2

200

-

12

Potassium (mg/L)

61.73

82.34

79.57

80.21

63.1

6.4

3.3

6.6

100

-

13

Magnesium (mg/L)

20.61

25.4

38.23

29.92

30.5

28.19

30.23

20.52

200

25 - 100

14

Phosphate (mg/L)

0.51

1.02

0.84

1.3

0.71

0.32

0.65

0.11

-

0.03 - 2.0

15

Nitrate (mg/L)

2.53

3.1

3.21

3.45

2.82

4.02

6.05

4.13

50

0.1 - 4.0