Elements and Performance Criteria

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Relevant compliance documentation may include:
legislative, organisational and site requirements and procedures
manufacturer's guidelines and specifications
Australian standards
code of practice
Employment and workplace relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Work instructions may come from:
briefings, handovers, plans and work orders and may be written or verbal, formal or informal and may include:
nature and scope of tasks
specifications
quality of finished works
achievement targets
operational conditions
obtaining of permits required
site layout
out of bounds areas
worksite inspection requirements
lighting conditions
plant or equipment defects
hazards and potential hazards
coordination requirements or issues
contamination control requirements
environmental control requirements
barricade and signage requirements
Coordination requirements may include
drill team
other equipment operators
maintenance personnel
supervisors
worksite personnel
Hazards may include:
release of gases from formation or samples obtained
spread of contaminants as a result of drilling or cleaning processes
change in the chemistry of contaminants as a result of drilling and recovery of the samples
working in proximity to drilling rig
use of high pressure air for drilling operations
entanglement in rotating pipes
string makeup and breakout hazards
drilling equipment and down-hole tools will depend on the air drilling method being used
Personal protective equipment includes:
steel-capped boots and hardhat
gloves
dust mask
eye and hearing protection
general protective and reflective clothing
Equipment includes:
solid flight augers including hex coupled augers, hex pins, D clips, screw taper thread (jet augers) and thread lube
hollow flight augers including overshot deployment of sampling tools, various manufacturer's tooling, taper screw threads and dog coupled reversible hollow augers, older hollow auger systems using parallel wall threads and plug bits deployed on inner rods
sampling systems including SPT hammers and split spoons
auger recovery tools, auger retaining plate, lifting sockets and hoisting plugs
O rings and flush hole plug spares for dog couples reversible hollow augers, circlip pliers
Operational problems may include:
straighten holes and starting straight holes
encountering excessive water
sand blowback with hollow augers in wet unconsolidated formations
cork screwing effect when hold back not set properly
rotating too fast so that flights are not properly filled
cross contamination of samples when using solid flight augers
balancing bit cutting action with hole clearing action
recovering samples in wet conditions
OHS issues relating to rotating plant including catching long hair, loose clothing, finger injuries, safety with lifting and carrying

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:
knowledge of the requirements, procedures and instructions for conducting of continuous flight auger drilling
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of continuous flight auger drilling
working with others to undertake and complete the continuous flight auger drilling tasks that meets all of the required outcomes
consistent timely completion of continuous flight auger drilling tasks that safely, effectively and efficiently meets the required outcomes
Context of and specific resources for assessment
This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.
The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.
Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.
Aboriginal people and other people from a non English speaking background may have second language issues.
Assessment of this competency requires typical resources normally used in the work environment. Selection and use of resources for particular worksites may differ due to site circumstances.
Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or assessment support when required.
Method of assessment
This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:
written and/or oral assessment of the candidate's required knowledge
observed, documented and/or first hand testimonial evidence of the candidate's:
implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes
consistently achieving the required outcomes
first hand testimonial evidence of the candidate's:
working with others to undertake and complete continuous flight auger drilling tasks
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.