Unit of competency Outline
Date retreived
22/07/2026 9:23 AM AWST
22/07/2026 9:23 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.
Install sub-soil drainage
Install sub-soil drainage
Unit of competency
National Code
RIICRC203E
RIICRC203E
State Code
OCX69
OCX69
TGA Status
Current
Current
DTWD Status
Approved
Approved
State Implementation and Classification
Approved Date
18/06/2021
Field of Education
040327 - Plumbing
Original Release Date
18/06/2021
Nominal Hours
16
Description
This unit describes the skills and knowledge required to install sub-soil drainage in civil construction, including setting out and excavating trenches and installing sub-soil drains, end structures or outlets.It applies to those working in operational roles. They generally work under supervision to undertake a prescribed range of functions involving known routines and procedures and take some responsibility for the quality of work outcomes.Licensing, legislative and certification requirements that apply to this unit can vary between states, territories and industry sectors. Users must check requirements with relevant body before applying the unit.
Notes
Elements and Performance Criteria
1. Plan and prepare for installing sub-soil drainage
- 1.1 Obtain, interpret, clarify and confirm work requirements
- 1.2 Access, interpret and apply documentation required to install sub-soil drainage
- 1.3 Identify and address potential risks, hazards and environmental issues, and implement control measures within scope of own role
- 1.4 Select and wear personal protective equipment according to site requirements
- 1.5 Identify, obtain, confirm and implement signage requirements
- 1.6 Select plant, tools and equipment required to carry out tasks and check for faults
- 1.7 Plan stockpiling of materials according to job and site requirements
2. Set out and excavate trenches
- 2.1 Check trench depths and grades against job requirements
- 2.2 Set out and mark trench location according to job requirements
- 2.3 Communicate with plant operator to confirm excavation of trenches, placement of shoring and battering against job requirements
3. Install bedding materials
- 3.1 Identify bedding material type and depth according to job requirements
- 3.2 Lay bedding materials to specified depths and grades according to job requirements
4. Install sub-soil drainage
- 4.1 Place geo-textile according to job requirements
- 4.2 Prepare drain sections and fittings
- 4.3 Lay subsoil drain according to job requirements
- 4.4 Identify inspection opening and flush out points according to job requirements
- 4.5 Fit out end structures, outlets or clean outs to culverts, storm water or subsoil drain systems and connect according to site and job requirements
- 4.6 Install packing and prepare system for backfilling
- 4.7 Monitor backfill procedure and confirm work is completed according to job requirements
5. Conduct clean-up activities
- 5.1 Clear work area and recycle or dispose of materials according to site requirements according to site requirements
- 5.2 Clean, check, maintain and store plant, tools and equipment according to manufacturer specifications and site requirements
No information
No information
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| WH110 | RIICRC203D | Install sub-soil drainage | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| BGL0 | RII30920 | Certificate III in Civil Construction | Qualification |
| BGO5 | LGA30120 | Certificate III in Local Government | Qualification |