| Parameters | Mean concentration, ppm (Mi) | Height permitted value for surface water (Si), ppm | Desirable maximum value (Ii) for surface water, ppm | Unit weightage (Wi) Ppm | Sub index (Qi) | Wi × Qi | HPI value |
| Fe | 0.095429 | 1 | 1 | 1 | 91.05 | 91.05 | 39.97 |
| Cu | 008914 | 1.5 | 0.05 | 0.666 | 2.593 | 1.72 | |
| Mn | 0.046429 | 0.3 | 0.3 | 3.33 | 26.76 | 89.2 | |
| Cr | 0.201714 | 0.05 | 0.05 | 0.2 | 3.560 | 71.2 | |
| Pb | 0.103986 | 0.05 | 0.05 | 0.2 | 3.050 | 61 |