Unit of competency Outline
Date retreived
23/07/2026 5:40 AM AWST
23/07/2026 5:40 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.
Maintain and repair irrigation drainage systems
Maintain and repair irrigation drainage systems
Unit of competency
National Code
AHCIRG320A
AHCIRG320A
State Code
WE026
WE026
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
11/04/2013
Field of Education
059999 - Agriculture, Environmental And Related Studies, N.e.c.
Original Release Date
11/04/2013
Nominal Hours
55
Description
This Unit covers the process of maintaining and repairing irrigation drainage systems and defines the standard required to: plan and prepare for the work; inspect the site to determine access to drainage lines; use mechanical drain clearing equipment; troubleshoot drainage problems and implement repair/replacement strategies; maintain drainage infrastructure and vegetative cover.
Notes
Elements and Performance Criteria
1 Prepare to carry out irrigation drainage system maintenance
- 1.1 Equipment is selected and checked for safe operation
- 1.2 Appropriate personal protective equipment and tools are selected and used according to Occupational Health and Safety (OHS) requirements
- 1.3 Site is inspected and drainage is assessed
- 1.4 Necessity for repair is established and authorities/persons notified of the intention to commence work
- 1.5 Work requirements are determined from plans, drawings, specifications or instructions
- 1.6 Appropriate drainage and inflow diversion arrangements are made without damage to environment
- 1.7 Equipment and excavation methods are selected and checked to meet safety requirements of task and site
2 Determine access to drainage lines
- 2.1 Plan of irrigation system is determined and access points located
- 2.2 Access to drainage lines is obtained to allow blockage to be cleared
- 2.3 Digging is carried out without unnecessary damage to buildings, site, environment or existing fixtures/fittings
3 Carry out repairs on an irrigation drainage system
- 3.1 Routine inspections of designated work areas are conducted according to maintenance schedules
- 3.2 System faults are identified and corrective actions are taken according to structure type, location, specification and legislative and organisational requirements
- 3.3 Mechanical equipment is used to open and close drains
- 3.4 Components and associated fittings are repaired or replaced according to manufacturer specifications and organisational requirements
- 3.5 Cast in situ components are constructed according to specifications and organisational requirements
4 Clear blockages in an irrigation drainage system
- 4.1 Blockages are cleared
- 4.2 Drainage lines are tested to confirm blockages have been cleared from pipe system
- 4.3 Drainage lines are repaired/resealed to permit normal use
- 4.4 Work area is cleaned and aligned, with debris/waste disposed of according to enterprise, environmental and OHS procedures
5 Maintain drainage earthworks and equipment
- 5.1Earthworks and embankments are checked to meet system requirements
- 5.2 Drainage area vegetation is managed and maintained
- 5.3 Weeds are controlled on drainage areas
- 5.4 A maintenance program for drainage equipment is implemented and recorded
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.
Drainage earthworks and embankments 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.
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.
Drainage earthworks and embankments 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.
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:
plan and prepare for the work
inspect the site to determine access to drainage lines
isolate appliances/fixtures/fittings and related assemblies
use manual and mechanical drain clearing equipment
troubleshoot drainage problems and implement repair/replacement strategies
maintain drainage infrastructure and vegetative cover.
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.
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:
plan and prepare for the work
inspect the site to determine access to drainage lines
isolate appliances/fixtures/fittings and related assemblies
use manual and mechanical drain clearing equipment
troubleshoot drainage problems and implement repair/replacement strategies
maintain drainage infrastructure and vegetative cover.
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 |
|---|---|---|---|
| BAO68 | AHCDRG304 | Maintain and repair irrigation drainage systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J156 | AHC32412 | Certificate III in Irrigation | Qualification |