| Class |
WQI Value |
Status of Water |
| Heavily Polluted |
0 - 24 |
Unsuitable for All Purposes |
| Poor |
25 - 49 |
Special Treatment (Special Treatment) |
| Fair |
50 - 74 |
Needs Treatment (Filtration & Disinfection) |
| Good |
75 - 94 |
Acceptable |
| Excellent |
95 - 100 |
Pristine Quality |
|
