Unit of competency Outline
Date retreived
23/07/2026 2:18 AM AWST
23/07/2026 2:18 AM 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 sewerage collection systems
Perform field support duties in the construction and maintenance of sewerage collection systems
Unit of competency
National Code
LGAWORK209A
LGAWORK209A
State Code
C5850
C5850
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 sewerage collection systems.
Notes
Elements and Performance Criteria
1 Establish site for sewerage collection system 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 sewerage collection job requirements.
- 1.4 Traffic control is planned at the work site and signed in accordance with the regulations of various authorities and the Australian standards Manual of Traffic Control Devices.
- 1.5 Underground and overhead obstructions and other utility services are located.
2 Carry out sewerage collection maintenance
- 2.1 Condition of the sewerage collection system is monitored, tested, sampled and reported on.
- 2.2 Sewerage collection problems and the source of odours and gases identified by tests are responded to.
- 2.3 Problems associated with sewerage manholes and chambers are inspected and rectified.
- 2.4 Correct sewerage collection service and condition are located and identified.
- 2.5 Defective components of pipeline are repaired, replaced or serviced as required.
- 2.6 Functional pressure/non-pressure tests of items are carried out.
- 2.7 Sewerage collection pipes and equipment are cleaned.
- 2.8 Service is reinstated after maintenance work has been passed at final inspection.
3 Excavate trenches and manholes
- 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 and location of manholes are set up according to the drawings.
- 3.4 Excavation plant is selected according to requirements.
- 3.5 Dewatering equipment is installed.
- 3.6 Trenches are excavated to the depth and grade shown on the plans, and shoring or shields are installed or trenches are battered back according to OHS requirements.
- 3.7 Pressure or other tests are completed as specified.
- 3.8 Trenches are backfilled with selected materials , compacted in layers and the surface is finished according to specifications and levels shown on the plans.
4 Carry out construction of sewerage collection 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 Functional tests of mains and components are carried out.
- 4.4 Sewerage collection system is placed in service and the performance of the sewerage collection system is monitored.
- 4.5 Manholes, inspection and 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 work.
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.
Types of pipes may include:
lined steel pipes
cast and ductile iron pipes
reinforced and unreinforced concrete pipes
polyvinyl chloride (PVC) pipes
fibre reinforced concrete (FRC) pipes
vitrified clay pipes
fibre glass reinforced pipes
butadiene styrene 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 and victaulic coupling
PVC: insert fitting, flared compression rubber gasket and solvent welded joints
FRC: gibault, machined and rubber joints
concrete pipes: socket mortar, socket mastic and socket rubber ring
vitrified clay: bell and socket
butadiene styrene: solvent cement welded to bell and spigot joints
Types of valves, meters and components may include:
stop valves
non-return valves
flow control valves
air release valves
waste and leak detection meters
Pipe protection may include:
non-metallic coatings
metallic coatings
chemical grouting treatments
cathodic
crinite
Pipe repair and linings may include:
cement or epoxy mortars
inversion lining
slip lining
spiral liners
pipe bursting
Cleaning methods may include:
power and hand-operated rods
sewer balls and tyres
high velocity cleaners
kites and bags
flushing
scrapers
scooters
bucket machines
chemical control
Pipe inspection and tests may include:
water and air pressure tests
leakage
infiltration tests
visual
smoke test
dye test
television monitor
gas detection
Pipe line odours and gases may include:
hydrogen sulphide
aeration
chlorinating
rodent and insect control
confined spaces
Plant and equipment may include:
excavators
backhoes
trench excavators
trench compactors
trucks
loaders
cranes
Materials may include:
concrete
steel
clay
sand
rock
crushed rock
geofabric cloth
plastics
Trench support systems may include:
timber struts
wales and runners
steel trench sheets
box shields
poling boards
tucking frames
Structures may include:
manholes
valve chambers
inspection chambers
thrust blocks
pump chambers
pipe supports
Relevant standards may include:
appropriate Australian standards related to the maintenance or construction of sewerage collection systems
Documents may include:
permits
approvals
plans
receipts
schedules
analysis sheets
cost sheets
time sheets
test reports
inspection reports
Types of pipes may include:
lined steel pipes
cast and ductile iron pipes
reinforced and unreinforced concrete pipes
polyvinyl chloride (PVC) pipes
fibre reinforced concrete (FRC) pipes
vitrified clay pipes
fibre glass reinforced pipes
butadiene styrene 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 and victaulic coupling
PVC: insert fitting, flared compression rubber gasket and solvent welded joints
FRC: gibault, machined and rubber joints
concrete pipes: socket mortar, socket mastic and socket rubber ring
vitrified clay: bell and socket
butadiene styrene: solvent cement welded to bell and spigot joints
Types of valves, meters and components may include:
stop valves
non-return valves
flow control valves
air release valves
waste and leak detection meters
Pipe protection may include:
non-metallic coatings
metallic coatings
chemical grouting treatments
cathodic
crinite
Pipe repair and linings may include:
cement or epoxy mortars
inversion lining
slip lining
spiral liners
pipe bursting
Cleaning methods may include:
power and hand-operated rods
sewer balls and tyres
high velocity cleaners
kites and bags
flushing
scrapers
scooters
bucket machines
chemical control
Pipe inspection and tests may include:
water and air pressure tests
leakage
infiltration tests
visual
smoke test
dye test
television monitor
gas detection
Pipe line odours and gases may include:
hydrogen sulphide
aeration
chlorinating
rodent and insect control
confined spaces
Plant and equipment may include:
excavators
backhoes
trench excavators
trench compactors
trucks
loaders
cranes
Materials may include:
concrete
steel
clay
sand
rock
crushed rock
geofabric cloth
plastics
Trench support systems may include:
timber struts
wales and runners
steel trench sheets
box shields
poling boards
tucking frames
Structures may include:
manholes
valve chambers
inspection chambers
thrust blocks
pump chambers
pipe supports
Relevant standards may include:
appropriate Australian standards related to the maintenance or construction of sewerage collection systems
Documents may include:
permits
approvals
plans
receipts
schedules
analysis sheets
cost sheets
time sheets
test reports
inspection reports
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 sewerage collection systems.
Plans and specification are adhered to.
Safety on work sites is ensured.
Australian standards, codes of practice and advisory standards are met.
Context of assessment
May be assessed:
on the job
simulated workplace environment
written assignment
short-answer test
oral questioning
observation
or any combination of the above
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 sewerage collection systems.
Plans and specification are adhered to.
Safety on work sites is ensured.
Australian standards, codes of practice and advisory standards are met.
Context of assessment
May be assessed:
on the job
simulated workplace environment
written assignment
short-answer test
oral questioning
observation
or any combination of the above
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 |