Slope %

Rating

Rainfall (mm)

Rating

Soil Permeability

Rating

Net recharge

Rating

0 - 2

10

3200

4

1 - 100

1

0 - 2

4

2 - 6

9

2 - 4

12

6 - 12

5

7 - 7

24

12 - 18

3

7-10

32

>18

1

>10

36