Hydraulic conductivity | 0.50 × 10−6 - 0.50 × 10−4 | 1 | 3 |
0.50 × 10−4 - 0.15 × 10−3 | 2 | ||
0.15 × 10−3 - 0.36 × 10−3 | 4 | ||
0.36 × 10−3 - 0.51 × 10−3 | 6 | ||
0.51 × 10−3 - 0.10 × 10−2 | 8 | ||
>0.10 × 10−2 | 10 |