Class of hydraulic conductivity | Hydraulic conductivity Kf (10−6 ms−1) | Number of drillings | Percentage |
Very strong | >3.5 | 6 | 26.1 |
Strong | 2.5 - 3.5 | 11 | 47.8 |
Average | 1.5 - 2.5 | 4 | 17.4 |
Low | <1.5 | 2 | 8.7 |