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. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs if the candidate, accessibility of the item, and local industry and regional contexts.
Information sources may include:
Dial before you Dig service
service search diagrams
asset owner
land owner
Services may include:
electricity
gas
fuel and oil
water
sewer and stormwater
telecommunication lines
pay television
road traffic control
power cables
steam pipes
relevant surface fittings
Undocumented services may include:
customer's service from main service
private street lighting
private effluent mains
Pipe and cable locating equipment may include:
equipment suitable for locating pipes such as:
vitrified clay
reinforced concrete
polyvinyl chloride (PVC)
polyethylene
cast iron cement lined
ductile iron cement lined
glass reinforced plastic
mild steel cement lined
equipment suitable for locating cables, such as:
post tensioning cables
earthing cables
Hazards may include:
contact with live conductors
injury from high pressure gas stream
engulfment
Organisational and statutory requirements may include:
by-laws or organisational policies
standard operating procedures
environment protection
occupational health and safety, including the use of personal protective equipment
mines and subsidence
road signage
electrical safety
dangerous goods
manufacturer's guidelines

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for the Training Package.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The candidate should demonstrate the ability to determine and mark the location and identity of gas, water, electrical, telecommunications and other underground utility services including:
identifying work site and task requirements
accessing appropriate sources of information for location of underground services
assessing the possible presence of undocumented services
selecting appropriate locating equipment
assessing the site hazards and take preventive action
marking out the worksite
operating utility locating device, including compensation for spurious signals
identifying and correcting equipment malfunction
marking and confirming location of utilities
maintaining equipment on good working order
completing relevant documentation
Context of and specific resources for assessment
Access to the workplace and resources including:
documentation that should normally be available in a water industry organisation
relevant codes, standards, and government regulations
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.
Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed.
Validity and sufficiency of evidence requires that:
competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice
a decision of competence only taken at the point when the assessor has complete confidence in the person's competence over time and in various contexts
all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence
where assessment is for the purpose of recognition (RCC/RPL), the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time
assessment can be through simulated project-based activity and must include evidence relating to each of the elements in this unit
In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge. Questioning will be undertaken in a manner appropriate to the skill levels of the operator, any cultural issues that may affect responses to the questions, and reflecting the requirements of the competency and the work being performed.