Unit of competency Outline

Date retreived
22/07/2026 3:51 PM AWST

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Construct and install an irrigation drainage system

Construct and install an irrigation drainage system

Unit of competency
National Code
AHCIRG424A
State Code
WE048
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
22/06/2012
View on TGA
State Implementation and Classification
Approved Date
09/04/2013
Field of Education
030907 - Water And Sanitary Engineering
Original Release Date
09/04/2013
Nominal Hours
70
Description
This Unit covers the process of constructing and installing an irrigation drainage system and defines the standard required to: establish the requirements of the drainage system; implement operational procedures for the project; establish and organise resources; supervise on-site construction; commission the drainage system; and rehabilitate the site.
Notes
Elements and Performance Criteria
1 Develop and implement construction procedures
  • 1.1 Employment procedures and contract management procedures are developed
  • 1.2 Procedures for controlling and recording site deliveries are established
  • 1.3 Procedures for recording the hire of plant and equipment are determined
  • 1.4 OHS procedures are established, including risk assessment
  • 1.5 Client, authorities and agencies are notified of the schedule of works
  • 1.6 Procedures for dealing with environmental issues associated with construction work are determined
2 Organise resource requirements
  • 2.1 Tasks and timelines are nominated with resources required for each
  • 2.2 Labour requirements are organised
  • 2.3 Parts and equipment are delivered to the site and checked
  • 2.4 Equipment and machinery is selected and maintained
  • 2.5 Jobs and tasks are allocated to the work team
  • 2.6 Safety induction is carried out for the task and site
3 Interpret the irrigation drainage systemdesign for the site
  • 3.1 The purpose, scale and required output of the irrigation drainage system is established from the drainage plan
  • 3.2 The landscape of the site is assessed
  • 3.3 Construction requirements are determined and verified with the designer
  • 3.4 Components are selected to meet design specifications and site requirements
4 Carry out preparatory work
  • 4.1 The site is cleaned and marked out
  • 4.2 Drainage structures are pegged out
  • 4.3 Levels are taken and earth works planned
5 Supervise construction of the drainage system
  • 5.1 Trenches are excavated to specification
  • 5.2 Earth works are carried out
  • 5.3 Drainage structures are constructed
  • 5.4 Pipes are laid and joined
  • 5.5 Fittings and valves are fitted and adjusted to the requirements of the installation plan, and all joints are secured according to enterprise guidelines.
  • 5.6 Pumping system is installed and tested
6 Commission the irrigation drainage system
  • 6.1 The system is started up
  • 6.2 Operating faults are identified and corrective actions taken to meet design specifications
  • 6.3 Testing/monitoring equipment is used to monitor system efficiency
  • 6.4 Adjustments are made as required
7 Rehabilitate the works area
  • 7.1 Earthworks are resurfaced and sealed
  • 7.2 Vegetation areas are planted and maintained
  • 7.3 Waste and surplus materials are disposed of in an environmentally sound manner
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. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Irrigation drainage systems may include:
both surface and sub-surface drainage installed to handle water which is excess to plant requirements in an irrigated area.
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:
establish the requirements of the drainage system
implement operational procedures for the projec;
establish and organise resources
supervise on-site construction
commission the drainage system
rehabilitate the site.
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.
Replaced By
State Code National Code Title Type
BAP67 AHCDRG401 Coordinate and supervise installation of an irrigation drainage system Unit of competency
State Code National Code Title Type
J158 AHC41112 Certificate IV in Irrigation Qualification