Permeability | Rainfall | Slope | |||
Permeability | Factor | rainfall (mm/year) | Factor | Slope (%) | Factor |
High | 6 | >850 | 4 | <2 | 4 |
Moderate | 4 | 700 - 850 | 3 | 2 - 10 | 3 |
Low | 2 | 500 - 700 | 2 | 10 - 32 | 2 |
|
| <500 | 1 | >33 | 1 |