|
 |
|
|
|
|
|
|
|
|
Expand and Collapse Menu
|
|
|
|
|
|
|
|
|
|
|
Category of Fresh Water
|
A - I
|
A-II |
A-III |
A-IV |
Best Usage
|
Unfiltered Public water
supply after approved
disinfection |
Public water supply with
approved treatment equal
to coagulation, sedimen-
tation & disinfection.
|
Not fit for human
consumption, Fish &
Wildlife Propagation.
|
Fit for Agriculture,
Industrial cooling &
process water.
|
| Total Ammonical Nitrogen |
1.5 mg/l |
1.5 mg/l |
- |
50 mg/l |
| Chlorides (Cl) |
600 mg/l |
600 mg/l |
- |
600 mg/l |
| Sulphates |
400 mg/l |
400 mg/l |
- |
1000 mg/l |
| Copper (Cu) |
1.5 mg/l |
1.5 mg/l |
- |
- |
| Manganese (Mn) |
0.5 mg/l |
3.0 mg/l |
- |
- |
| Iron (Fe) |
1.0 mg/l |
5.0 mg/l |
- |
- |
| Sodium |
- |
- |
- |
- |
| Zinc (Zn) |
15.0 mg/l |
1.5 mg/l |
5.0 mg/l |
5.0 mg/l |
| Phenolic Compounds |
0.002 mg/l |
0.002 mg/l |
0.05 mg/l |
- |
| Alkyl Benzene sulphates |
1.0 mg/l |
1.0 mg/l |
- |
- |
| Mineral Oil |
0.3 mg/l |
0.3 mg/l |
- |
- |
| Ammonia |
1.5 mg/l |
1.5 mg/l |
- |
- |
| B.O.D. (5 days 20 . C) |
2.0 mg/l(Monthly average of atleast 10 samples) |
5.0 mg/l(Monthly average of atleast 10 samples) |
10 mg/l |
30 mg/l |
| C.O.D. |
- |
- |
- |
150 mg/l |
| D.O. |
Not less than 5 mg/l(Monthly average of 100 samples) |
4.0 mg/l |
Not less than 3 mg/l |
Not less than 2 mg/l |
| Bacteriological Standards : |
Coliform Bact. 250 |
Not greater than 5000 |
|
|
| (MPN/100) |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
| |
 |
|
|
|
|
|
