Unit of competency Outline
Date retreived
23/07/2026 4:33 PM AWST
23/07/2026 4:33 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.
Perform field support duties in the construction and maintenance of water reticulation systems
Perform field support duties in the construction and maintenance of water reticulation systems
Unit of competency
National Code
LGAWORK208A
LGAWORK208A
State Code
C5844
C5844
TGA Status
Deleted
Deleted
DTWD Status
Deleted
Deleted
State Implementation and Classification
Approved Date
30/06/2011
Field of Education
030907 - Water And Sanitary Engineering
Original Release Date
30/06/2011
Nominal Hours
20
Description
This unit covers providing support activity in the construction and maintenance of a water supply reticulation system.
Notes
Elements and Performance Criteria
1 Establish site for water reticulation system's maintenance or construction
- 1.1 Work is planned and programmed to be undertaken in accordance with drawings, specifications and other documentation.
- 1.2 Work site is prepared and maintained in safe condition and in accordance with the occupational health and safety (OHS) requirements and regulations of other relevant authorities.
- 1.3 Work is assigned to appropriate accredited personnel or gangs to meet reticulated water service's job requirements.
- 1.4 Traffic control is planned at the work site and is signed in accordance with the regulations of various authorities and the Australian standards Manual of Traffic Control Devices.
- 1.5 Underground and overhead obstructions, hazards and other utility services are located.
2 Carry out reticulated water service maintenance
- 2.1 Condition of the water-reticulated system is monitored, tested, sampled and reported on.
- 2.2 Water quality problems identified by tests are responded to.
- 2.3 Correct water reticulated service is located and identified.
- 2.4 Defective components or pipeline are repaired, replaced or serviced as required.
- 2.5 Functional pressure/non-pressure tests of items are carried out.
- 2.6 Water reticulation pipes and equipment are cleaned and disinfected with all wastewater being disposed of appropriately.
- 2.7 Service is reinstated after maintenance work has been passed at final inspection.
3 Excavate trenches
- 3.1 Appropriate drainage is provided for the diversion of all uncontaminated water from the site and silt traps are set up as required to prevent damage to the environment.
- 3.2 Environmental protection devices are installed as required to meet environmental regulations.
- 3.3 Levels and lines of works are set out according to the drawings.
- 3.4 Excavation plant is selected according to requirements.
- 3.5 Trenches are excavated to depth and grade as shown on plans, and shoring or shields are installed or trenches are battered back according to OHS requirements.
- 3.6 Pressure and other tests are completed as specified.
- 3.7 Trenches are backfilled with selected materials , compacted in layers and surface is finished according to specifications.
4 Carry out construction of water reticulation service
- 4.1 Trench bottom is prepared and pipe bedding is laid to specifications in accordance with the drawings.
- 4.2 Pipes are placed and valves, fittings and flow control devices are fitted in accordance with the drawings and specifications.
- 4.3 Water service is disinfected and functional tests of items are carried out.
- 4.4 Water system is placed in service and the performance of the water reticulation system is monitored.
- 4.5 Valve chambers, minor structures and thrust blocks are constructed.
5 Complete necessary documentation
- 5.1 Construction and maintenance reports are completed and filed to meet council's requirements.
- 5.2 The as constructed plans and drawings are completed in accordance with completed works.
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 in the Performance Criteria is detailed below.
Plant may include:
excavators
backhoes
trench excavators
trench compactors
trucks
loaders
cranes
Trench support systems may include:
timber struts
wales and runners
steel trench sheets
box shields
poling boards
trucking frames
Materials may include:
concrete
steel
clay
sand
rock
crushed rock
geofabric cloth
plastics
Types of pipes may include:
steel pipes
lined steel pipes
cast and ductile iron pipes
reinforced and unreinforced concrete pipes
polyvinyl chloride (PVC) pipes
fibre reinforced concrete (FRC) pipes
copper pipes
Types of pipe joints may include:
cast iron: flanged, flexible, sleeve, bell and spigot joints
steel: butt and spigot and socket welded joints, and flanged joints
Viking Johnson coupling
PVC: insert fitting and flared compression rubber gasket joints
FRC: gibault, machined and rubber joints
concrete pipes: socket mortar, socket mastic and socket rubber ring
Types of valves, meters and components may include:
stop valves, non-return valves, flow control valves, pressure control valves, energy dissipaters and air release valves
venturi and orifice meters, inferential propeller blade or vane meters, and waste and leak detection meters
Disinfectant methods may include:
continuous feed
slug
foam swabs
pigs
flushing
Pipe tests may include:
pressure
leakage
water quality
compaction
confined spaces
Structures may include:
pump stations
valve chambers
inspection chambers
thrust blocks
pipe supports
Plant may include:
excavators
backhoes
trench excavators
trench compactors
trucks
loaders
cranes
Trench support systems may include:
timber struts
wales and runners
steel trench sheets
box shields
poling boards
trucking frames
Materials may include:
concrete
steel
clay
sand
rock
crushed rock
geofabric cloth
plastics
Types of pipes may include:
steel pipes
lined steel pipes
cast and ductile iron pipes
reinforced and unreinforced concrete pipes
polyvinyl chloride (PVC) pipes
fibre reinforced concrete (FRC) pipes
copper pipes
Types of pipe joints may include:
cast iron: flanged, flexible, sleeve, bell and spigot joints
steel: butt and spigot and socket welded joints, and flanged joints
Viking Johnson coupling
PVC: insert fitting and flared compression rubber gasket joints
FRC: gibault, machined and rubber joints
concrete pipes: socket mortar, socket mastic and socket rubber ring
Types of valves, meters and components may include:
stop valves, non-return valves, flow control valves, pressure control valves, energy dissipaters and air release valves
venturi and orifice meters, inferential propeller blade or vane meters, and waste and leak detection meters
Disinfectant methods may include:
continuous feed
slug
foam swabs
pigs
flushing
Pipe tests may include:
pressure
leakage
water quality
compaction
confined spaces
Structures may include:
pump stations
valve chambers
inspection chambers
thrust blocks
pipe supports
Overview of assessment requirements
A person who demonstrates competency in this unit will be able to perform the outcomes described in the Elements to the required performance level detailed in the Performance Criteria. The knowledge and skill requirements described in the Range Statement must also be demonstrated. For example, knowledge of the legislative framework and safe work practices that underpin the performance of the unit must be demonstrated.
Critical aspects of evidence to be considered
Appropriate materials, pipes and components, construction methods and processes are used for the efficient maintenance and construction of water reticulation and sewerage collection systems.
Plans and specifications are adhered to.
Safety on work sites is ensured.
Australian standards, codes of practice and advisory standards are met.
Context of assessment
Appropriate materials, pipes and components, construction methods and processes are used for the efficient maintenance and construction of water reticulation and sewerage collection systems.
Plans and specifications are adhered to.
Safety on work sites is ensured.
Australian standards, codes of practice and advisory standards are met.
Relationship to other units(prerequisite or co-requisite units)
To enable holistic assessment this unit may be assessed with other units that form part of the job role.
Method of assessment
The following assessment methods are suggested:
observation of the learner performing a range of workplace tasks over sufficient time to demonstrate handling of a range of contingencies
written and/or oral questioning to assess knowledge and understanding
completion of workplace documentation
third-party reports from experienced practitioners
completion of self-paced learning materials including personal reflection and feedback from trainer, coach or supervisor
Evidence required for demonstration of consistent performance
Evidence will need to be gathered over time across a range of variables.
Resource implications
In accordance with a range of variable requirements.
A person who demonstrates competency in this unit will be able to perform the outcomes described in the Elements to the required performance level detailed in the Performance Criteria. The knowledge and skill requirements described in the Range Statement must also be demonstrated. For example, knowledge of the legislative framework and safe work practices that underpin the performance of the unit must be demonstrated.
Critical aspects of evidence to be considered
Appropriate materials, pipes and components, construction methods and processes are used for the efficient maintenance and construction of water reticulation and sewerage collection systems.
Plans and specifications are adhered to.
Safety on work sites is ensured.
Australian standards, codes of practice and advisory standards are met.
Context of assessment
Appropriate materials, pipes and components, construction methods and processes are used for the efficient maintenance and construction of water reticulation and sewerage collection systems.
Plans and specifications are adhered to.
Safety on work sites is ensured.
Australian standards, codes of practice and advisory standards are met.
Relationship to other units(prerequisite or co-requisite units)
To enable holistic assessment this unit may be assessed with other units that form part of the job role.
Method of assessment
The following assessment methods are suggested:
observation of the learner performing a range of workplace tasks over sufficient time to demonstrate handling of a range of contingencies
written and/or oral questioning to assess knowledge and understanding
completion of workplace documentation
third-party reports from experienced practitioners
completion of self-paced learning materials including personal reflection and feedback from trainer, coach or supervisor
Evidence required for demonstration of consistent performance
Evidence will need to be gathered over time across a range of variables.
Resource implications
In accordance with a range of variable requirements.
No information
| State Code | National Code | Title | Type |
|---|---|---|---|
| C747 | LGA20204 | Certificate II in Local Government (Operational Works) | Qualification |