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.
Leak detection requirements may include:
location of leaks in pipes, including:
polyvinyl chloride (PVC)
reinforced concrete
polyethylene
cast iron cement lined
ductile iron cement lined
asbestos cement
mild steel cement lined
location of leaks in fittings, including:
jointing systems for pipe types e.g. gibault
tension bands
solvent cement joints
compression ring joints
bolted flanges
cathodic protection
electrofusion
butt-welding
location of leaks in structures, including:
meter pits
valve pits
drop structures
regulators
erosion barriers
head walls
thrust blocks,
inspection shafts
regulation of flow and pressure, including:
the adjustment of pumping systems
valving systems
gravity flow systems
service reservoirs
electronic and manual control systems.
Equipment used may include:
leak detection equipment
pipe and cable locating equipment
hand and power tools
lifting equipment
mechanical excavation equipment
pneumatic and motorised equipment e.g. compressors, pneumatic spades and attachments
motorised cutting equipment
on- and off-road vehicles
portable pumps
communication systems
gas detection equipment
rescue equipment
appropriate personal protective equipment
Organisational and statutory requirements may include:
by-laws or organisational policies
procedures
environment protection
occupational health and safety
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 plan leak detection activities and to locate, identify and report leaks in water distribution networks including:
planning leak detection activities
operating leak detection equipment safely
locating and marking leaks and arranging repair activities
completing 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 should only be made 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.