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Elements and Performance Criteria
- Plan and prepare for continuous flight auger drilling
- Operate continuous flight auger drill
- Carry out pre-start and start up procedures
- Identify, select and apply rig operational controls
- Collar borehole, start hole, maintain hole alignment, take corrective action for deflections
- Make up appropriate drill string
- Handle additional augers, inserting them in the drill string
- Apply rotation, feed and holdback so that flights are substantially full for the soil being drilled at any given depth
- Interpret flow from the flights and other factors to determine conditions at the bit
- Describe and log, or record, description of the soils being excavated
- Make, break auger string and drive head connections
- Deploy and recover associated sampling equipment, obtain samples, bag, label and record samples
- Maintain a clear hole and a clear bottom and deploy tools for cleaning hole bottom at completed depth and/or prior to sampling tool deployment
- Interpret and/or calculate actual depth at any point during drilling, interpret depth of strata changes and identify fill depth in any bore
- Select appropriate strategies for recovery of dropped augers
- Recover drill string using winch and/or head/kelly and disassemble drill string
- Select bits for formation being drilled
- Select appropriate augering method for situation
- Maintain spoil removal from hole collar
- Abandon, cover and/or secure bores
- Prepare and submit paperwork for daily activities including bore logs where appropriate
- Continually monitor hazards and risks, and ensure safety of self, other personnel, plant and equipment
- Respond to problems
- Complete equipment maintenance and housekeeping