Sample

BOD mg/l

DO mg/l

pH

TEMP ˚C

Hardness

mg/ml

Alkalinity

(mg/l)

Conductivity

mho/cm

Coliform count (Cfu/ml)

W1

24.30 ± 0.08

0.4 ± 0.02

6.60 ± 0.00

16.50 ± 0.02

44.00 ± 1.20

14.88 ± 0.15

460 ± 1.26

8.5 × 10⁶ ± 5.23

W2

22.40 ± 0.06

0.9 ± 0.01

6.41 ± 0.01

15.00 ± 0.07

2.60 ± 0.04

9.25 ± 0.03

290 ± 1.51

8.0 × 10⁶ ± 11.14

W3

18.20 ± 0.35

1.2 ± 0.01

6.87 ± 0.02

17.00 ± 0.01

42.00 ± 0.13

14.64 ± 0.07

320 ± 2.34

5.4 × 10⁶ ± 9.67

W4

26.40 ± 0.72

0.5 ± 0.00

6.84 ± 0.05

17.50 ± 0.00

20.80 ± 0.04

4.03 ± 0.02

230 ± 1.15

9.8 × 10⁶ ± 17.81

W5

12.80 ± 0.22

4.6 ± 0.02

6.88 ± 0.06

18.00 ± 0.21

11.20 ± 0.11

4.03 ± 0.11

290 ± 2.77

3.0 × 10⁶ ± 20.21

W6

15.89 ± 0.13

3.8 ± 0.00

5.88 ± 0.01

18.00 ± 0.20

8.30 ± 0.00

4.26 ± 0.02

300 ± 2.19

4.2 × 10⁶ ± 22.10

WHO

3.0

5

6.5 - 8.5

Ambient

150

---------

1000

0