| Sub watershed | A | B | C | D | E | Reservoir dam |
| Chi-Square | 460.447 | 78.988 | 236.636 | 50.817 | 100.254 | 294.736 |
| df | 19 | 27 | 19 | 7 | 11 | 11 |
| Asymp. Sig. | 0.000 | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 |