WQI range | Type of water | Percentage of water samples |
<50 | Excellent water | 11.1 |
50.1 - 100 | Good water | 33.3 |
100.1 - 200 | Poor water | 22.2 |
200.1 - 300 | Very poor water | 11.1 |
>300.1 | Unfit for drinking | 22.2 |