No | Criteria | Parameter Range | Ranking | Weight Ages |
1 | pH | 7 - 7.5 | 1 | 20% |
7.5 - 8.5 | 2 | |||
>8.5 | 3 | |||
2 | BOD5 mg/l | 0 | 1 | 20% |
>0 | 2 | |||
3 | Electrical Conductivity (µS/cm) | 500 - 750 | 1 | 15% |
750 - 1000 | 2 | |||
>1000 | 3 | |||
4 | Total Dissolved Solids (mg/l) | <500 | 1 | 15% |
500 - 1000 | 2 | |||
>1000 | 3 | |||
5 | Sulfate (mg/l) | ≤100 | 1 | 10% |
>100 | 3 | |||
6 | Bicarbonate (mg/l) | 100 - 500 | 1 | 10% |
>500 | 3 | |||
7 | Ammonia (mg/l) | <1.2 | 1 | 10% |
>1.2 | 3 |