8. Slope (%)

0 - 2

Very high

10

0.38

2 - 4

High

7

0.27

4 - 8

Medium

5

0.19

8 - 12

Poor

3

0.12

12 - 38

Very poor

1

0.04

9. Drainage density (km−1)

0.28 - 0.56

Very poor

1

0.04

0.56 - 0.86

Poor

3

0.12

0.86 - 1.20

Medium

5

0.19

1.20 - 2.16

High

7

0.27

0.28 - 0.56

Very high

10

0.38

10. Seepage water (mm)

12 - 15

Very poor

1

0.04

15 - 25

Poor

3

0.12

25 - 35

Medium

5

0.19

35 - 45

High

7

0.27

45 - 51

Very high

10

0.38