S.No

Characteristic (mg/l)

Inland Surface Water (IS 2490)

Public Sewer (IS 3306)

Marine Coastal Areas (IS 7698)

1

BOD (5 Days, 20^oC)

30

350

100

2

COD

250

-

250

3

Total Dissolved Solid

2100

2100

-

4

Phenolic Compounds

1.0

5.0

5.0

5

Cyanides

0.2

0.2

0.2

6

Sulphides

2.0

-

-

7

Fluorides

2.0

15

15

8

Total residual Chlorine

1.0

-

1.0

9

Arsenic

0.2

0.2

0.2

10

Cadmium

2.0

1.0

2.0

11

Hexavalent Chromium

0.1

2.0

1.0

12

Total Chromium

2.0

2.0

2.0

13

Copper

3.0

3.0

3.0

14

Lead

0.1

1.0

1.0

15

Mercury

0.01

0.01

0.01

16

Nickel

3.0

3.0

5.0

17

Zinc

5

15

15

18

Sulphate

1000

1000

-

19

Ammoniacal Nitrogen

50

50

50

20

Percent Sodium max

-

60

-