NWPNET015
Perform leak detection


Application

This unit describes the outcomes required to plan leak detection activities and to locate, identify and report leaks in water distribution networks (pressure mains).

This unit applies to those working as field staff with a specific responsibility for planning and implementing leak detection activities.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to, particularly those related to WHS.

Those undertaking this unit would work under indirect supervision, while performing routine tasks in a familiar context, ensuring minimum damage to the environment.

No licensing, legislative or certification requirements apply to unit at the time of publication.


Elements and Performance Criteria

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Plan for leak detection

1.1 Determine work site boundaries and leak detection requirements from plans, specifications and instructions.

1.2 Select and check equipment.

1.3 Plan for leak detection using site inspection and service search diagrams according to work site requirements.

2. Operate leak detection equipment and report work

2.1 Determine and mark work site boundaries from plans and service search diagrams.

2.2 Select, fit and use personal protective equipment.

2.3 Operate leak detection equipment.

2.4 Mark the location of leaks.

2.5 Expose leaks and arrange repair according to testing outcomes and organisational and statutory requirements.

2.6 Review, record and report work.

Evidence of Performance

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

analysing data to take remedial action

interpreting plans, specifications, policies and procedures

providing maintenance records for equipment

identifying safety risks and hazards

planning leak detection activities

locating, identifying and reporting leaks in water distribution networks

operating leak detection equipment

locating and marking leaks and arranging repair activities

completing documentation


Evidence of Knowledge

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

basic calculation

identification, repair, lock out procedures

system hydraulics

system layout

environmental aspects

relevant utilities and service bodies

landscape and ground structure of work area

risk assessment and the identification of potential hazards

equipment operation, capacity and limitations

effects of weather and conditions on site or plant


Assessment Conditions

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.


Foundation Skills

The foundation skills demands of this unit have been mapped for alignment with the Australian Core Skills Framework (ACSF). The following tables outline the performance levels indicated for successful attainment of the unit.

Further information on ACSF and the foundation skills underpinning this unit can be found in the Foundation Skills Guide on the GSA website.


Competency Field

Networks