Unit of competency Outline

Date retreived
22/07/2026 11:03 PM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Test and commission water distribution systems

Test and commission water distribution systems

Unit of competency
National Code
NWP309B
State Code
D1894
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
2.00
Current Release Date
30/04/2012
State Implementation and Classification
Approved Date
14/01/2009
Field of Education
030717 - Plant And Machine Operations
Original Release Date
14/01/2009
Nominal Hours
40
Description
This unit of competency describes the outcomes required to plan and implement the testing and commissioning of water distribution systems. The ability to interpret technical information, identify and assess hazards and perform technical testing procedures are essential to performance.
Notes
Elements and Performance Criteria
1Plan and prepare for testing and commissioning.
  • 1.1 Check plans for the section to be tested and locate features on site.
  • 1.2 Correctly identify and interpret the system operation requirements.
  • 1.3 Check vacuum testing and commissioning tasks from relevant documentation and schedule appropriately.
  • 1.4 Identify and assess potential hazards and take required preventative measures.
  • 1.5 Select and use tools and equipment correctly.
  • 1.6 Check testing equipment for accuracy and identify and correct malfunctions.
2Maintain water system hygiene.
  • 2.1 Arrange disinfection according to organisational and statutory requirements.
  • 2.2 Flush and/or slug clean or swab the relevant section of the distribution system according to the required standard using approved techniques.
  • 2.3 Dispose of flushing according to organisational requirements.
3Test the pipeline system.
  • 3.1 Fill the distribution system slowly and flush systematically to expel air and debris.
  • 3.2 Determine the correct test pressure for the pipeline and fit gauges of the correct range to test equipment.
  • 3.3 Carry out testing procedures according to specifications and organisational requirements.
  • 3.4 Accurately locate and report failed pipes, joints and fittings and reschedule testing.
  • 3.5 Vacuum test concrete access chambers using standard techniques.
4Commission the distribution system.
  • 4.1 Ensure the distribution system is made operational according to specifications and organisational procedures.
  • 4.2 Check, maintain and store equipment, tools and materials according to manufacturer's guidelines and organisational procedures.
  • 4.3 Restore the work site to meet environmental and organisational requirements.
5Review record and report results.
  • 5.1 Maintain workplace records according to organisational and statutory requirements.
  • 5.2 Maintain calibration records and certificates according to organisational and statutory requirements.
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.
System operation requirements may include:
calibration certificates
NATA certification
Relevant documentation may include:
manufacturer's specifications
organisational procedures
Potential hazards may include:
work in confined spaces
work involving lifting and moving materials
working in a trench
Tools and equipment may include:
hand and power tools
lifting and winching equipment
testing equipment
communication equipment
line plugs
gauges
personal protective equipment
Organisational and statutory requirements may include:
by-laws and organisational policies
standard operating procedures
environment standards
occupational health and safety
lifts and cranes
mines
road signage code
electrical
dangerous goods
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 test and commission water distribution systems including:
planning the testing of water distribution systems
identifying and analysing system requirements
identifying and addressing hazards
using suitable equipment
maintaining the quality of water in the system
commissioning the distribution system
restoring worksite and equipment
completing required reports and records
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.
Replaces
State Code National Code Title Type
M1899 NWP309A Test and commission water distribution systems Unit of competency
Replaced By
State Code National Code Title Type
AVY59 NWPNET044 Test and commission water distribution systems Unit of competency
State Code National Code Title Type
D245 NWP30107 Certificate III in Water Operations Qualification