Site Investigation...
| Task / Description | Slow | Ave | Fast | Units | 
| Pre Drilling, Rercussive or Rotary, soft deposits | 8.0 | 10.0 | 14.0 | m/hr | 
| Pre Drilling, Wash Boring, grade V/IV rock | 2.5 | 3.2 | 3.9 | m/hr | 
| Pre Drilling, Triple Tube Sampling, grade V/IV rock | 0.4 | 0.8 | 0.9 | m/hr | 
| Pre Drilling, Rotary, grade III/II rock | 0.2 | 0.5 | 0.7 | m/hr | 
| Pre Drilling, Triple Tube Sampling, grade III/II rock | 0.1 | 0.4 | 0.7 | m/hr |