Unit of competency Outline

Date retreived
23/07/2026 9:16 AM AWST

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Interpret and apply irrigation designs

Interpret and apply irrigation designs

Unit of competency
National Code
AHCIRG415A
State Code
WE039
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
059999 - Agriculture, Environmental And Related Studies, N.e.c.
Original Release Date
09/04/2013
Nominal Hours
60
Description
This Unit of Competency specifies the outcomes required to interpret the irrigation design for an installation site and defines the standard required to: interpret symbols and abbreviations on plans and drawings; define the placement and function of irrigation structures; plan for construction works on the site; select and verify system components; and provide instructions to staff on the site.
Notes
Elements and Performance Criteria
1 Identify the key features on an irrigation design
  • 1.1 Commonly used symbols and abbreviations on plans are identified, understood and applied
  • 1.2 Common irrigation terms used on plans are identified, understood and applied
  • 1.3 Key features of irrigation plans, elevations and sections are identified
  • 1.4 Scale, elevations and sections are identified from drawings
2 Define the placement and function of the irrigation system
  • 2.1 The proposed purpose and capacity of the irrigation system is identified
  • 2.2 The designed system is positioned in relation to the landscape of the site
  • 2.3 Environmental impacts of the irrigation system, and its installation, are identified from the design
  • 2.4 The plans, drawings and specifications for an irrigation design are interpreted
  • 2.5 ‘As constructed’ drawings are prepared
3 Mark out structures
  • 3.1 Boundaries of the site are marked
  • 3.2 Existing irrigation infrastructure on the site is identified
  • 3.3 Electricity and communications infrastructure is identified on the site plan, marked out and safety procedures developed
  • 3.4 Remnant vegetation to be retained is marked out
  • 3.5 Proposed pipelines identified on the plan are pegged out
  • 3.6 Proposed irrigation structures identified on the plan are pegged out
4 Estimate earth moving requirements for construction
  • 4.1 Levels are taken and earthworks drawings are interpreted
  • 4.2 Earth to be relocated or removed from the site is estimated
  • 4.3 Sequence of earthworks is established and communicated
  • 4.4 Materials required for irrigation structures are listed and quantified
  • 4.5 Construction requirements are verified with designer
5 Select pumps and system components
  • 5.1 Design specifications are interpreted for water volume, pressure and delivery pattern required
  • 5.2 Pumping system is selected to meet design specifications and site requirements
  • 5.3 Irrigation system components are selected to meet design specifications and site requirements
  • 5.4 Component selection is verified with designer
6 Mark out locations of all components
  • 6.1 The sequence of operations for installation is established
  • 6.2 The delivery and storage area for components is identified
  • 6.3 Placement of all components is identified from the design and markings made on the site
7 Develop instructions for staff
  • 7.1 Environmental hazards and strategies are included in instructions
  • 7.2 Sequence of activities and work duties is documented
  • 7.3 OHS hazards and risk controls are communicated
  • 7.4 Construction schedule is provided to staff
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 designs may include:
plans, drawings and specifications covering low volume, sprinkler, moving sprinkler, surface or irrigation drainage systems.
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 symbols and abbreviations on plans and drawings
define the placement and function of irrigation structures
plan for construction works on the site
select and verify system components
provide instructions to staff on 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
BAL76 AHCIRG415 Interpret and apply irrigation designs Unit of competency
State Code National Code Title Type
J158 AHC41112 Certificate IV in Irrigation Qualification