Unit of competency Outline

Date retreived
22/07/2026 2:10 PM AWST

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Install drainage systems

Install drainage systems

Unit of competency
National Code
AHCDRG301A
State Code
D6809
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
10/06/2011
View on TGA
State Implementation and Classification
Approved Date
11/04/2013
Field of Education
030907 - Water And Sanitary Engineering
Original Release Date
11/04/2013
Nominal Hours
30
Description
This unit covers the process of installing surface and/or subsurface drainage systems and defines the standard required to: interpret site specifications and drainage system plans; prepare for installation activities; set out, survey, test and excavate the installation site; measure materials; set out drainage system works; install and test the drainage system; level and align earthworks.
Notes
Elements and Performance Criteria
1. Prepare for drainage system installation activities
  • 1.1. The construction site for the drainage system and construction method is identified according to the site and drainage system plans and enterprise work procedures.
  • 1.2. Materials, tools, equipment and machinery are selected according to drainage system design requirements and enterprise work procedures.
  • 1.3. Pre-operational and safety checks are carried out on tools, equipment and machinery according to manufacturer's specifications and enterprise work procedures.
  • 1.4. Occupational Health and Safety (OHS) hazards are identified, risks assessed and risk controls implemented.
  • 1.5. Suitable safety and Personal Protective Equipment (PPE) are selected, used and maintained.
2. Co-ordinate installation work
  • 2.1. Enterprise work team, contractors and design consultants are identified and work tasks are co-ordinated in a sequential, timely and effective manner in consultation with the supervisor.
  • 2.2. Installation of the drainage system is undertaken according to OHS requirements and with due consideration of the environmental implications and relevant legislation and regulations.
  • 2.3. A clean and safe work area is maintained throughout and on completion of work.
3. Prepare the site for installation of drainage system
  • 3.1. Symbols and terminology are interpreted to ensure the concept of the drainage system plan is clearly understood according to industry practice.
  • 3.2. Layout of services is identified, depths checked against the site or drainage system plan and discrepancies are reported to the supervisor and the relevant authority.
  • 3.3. Survey, measurement and marking out of the site and confirmation of soil characteristics relevant to the planned drainage system are completed according to plan specifications and enterprise work procedures.
4. Undertake installation of drainage system
  • 4.1. Excavations are completed without damage to services, facilities, features and established plants according to plan specifications and enterprise work procedures.
  • 4.2. The drainage system is installed according to the drainage system plan and enterprise work procedures.
  • 4.3. The drainage system is tested for configuration, flow rates and capacity consistent with the drainage system plan and according to enterprise work procedures.
  • 4.4. The supervisor is consulted and remedial action is taken when the drainage system operation does not meet the plan specifications.
5. Complete installation of drainage system
  • 5.1. Earthworks are finished off to the plan specifications and enterprise work procedures.
  • 5.2. The site is restored and waste material is removed from the site and disposed of in an environmentally aware and safe manner according to enterprise work procedures.
  • 5.3. Tools, equipment and machinery are cleaned, maintained and stored according to enterprise work procedures.
  • 5.4. Work outcomes are recorded or reported to the supervisor according to enterprise work procedures.
RANGE STATEMENT
The range statement relates to the unit of competency as a whole.
Drainage systems may include:
surface drains
culverts
mole drains
sand slit
sub-surface traps
pit and trap systems
dune and swale systems
reed beds
water-recycling pumps and baffles.
EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy holistically all of the requirements of the performance criteria and required skills and knowledge and include achievement of the following:
interpret site specifications and drainage system plans
prepare for installation activities
set out, survey, test and excavate the installation site
measure materials
set out drainage system works
install and test the drainage system
level and align earthworks.
Context of and specific resources for assessment
Competency requires the application of work practices under work conditions. Selection and use of resources for some worksites may differ due to the regional or enterprise circumstances.
Replaces
State Code National Code Title Type
S3526 RTE3603A Install drainage systems Unit of competency
Replaced By
State Code National Code Title Type
BAO94 AHCDRG301 Install drainage systems Unit of competency