Unit of competency Outline

Date retreived
23/07/2026 7:45 PM 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.

Design complex stormwater and roof drainage systems

Design complex stormwater and roof drainage systems

Unit of competency
National Code
CPCPCM5002B
State Code
D7420
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
19/05/2011
View on TGA
State Implementation and Classification
Approved Date
27/09/2011
Field of Education
040327 - Plumbing
Original Release Date
27/09/2011
Nominal Hours
40
Description
This unit of competency specifies the outcomes required to design complex stormwater and roof drainage systems for commercial, industrial and residential properties.
Notes
Elements and Performance Criteria
1. Evaluate design parameters.
  • 1.1. Client requirements are determined from plans, specifications and client briefs.
  • 1.2. Local government, Environment Protection Authority (EPA), and Australian and New Zealand standards for the design of complex stormwater and roof drainage systems are interpreted.
  • 1.3. Regulatory requirements for design of complex stormwater and roof drainage systems are analysed and applied.
  • 1.4. Other documentation relevant to the design is researched, evaluated and applied.
2. Plan system components.
  • 2.1. Layout of system components is planned according to design parameters and site limitations, and is coordinated with other services.
  • 2.2. Stormwater diversion valve systems and first-flush stormwater systems are planned and evaluated.
  • 2.3. Most suitable methods of preventing backflow of sub-soil and stormwater into buildings are determined and specified.
  • 2.4. Treatment and disposal options for stormwater discharge are evaluated and planned.
3. Design and size systems.
  • 3.1. Rainfall intensities are determined and volumes of water are estimated using measurements of different catchment areas.
  • 3.2. Methods of collection and disposal of surface run-off water are specified.
  • 3.3. Strategies for harvesting and re-using rainwater are identified and evaluated.
  • 3.4. Sub-soil water types are determined and stormwater drainage systems are designed, sized and detailed using appropriate software applications.
  • 3.5. System components are selected, designed, sized and detailed using appropriate software applications and appropriate approved materials are analysed and selected.
  • 3.6. Stormwater systems requiring pumping are identified and designed using appropriate software applications, with pump and discharge pipe sizes calculated and specified.
  • 3.7. Correct installation, laying and jointing procedures for materials and components are specified.
4. Prepare documentation.
  • 4.1. Plans are prepared for a range of complex stormwater and roof drainage systems.
  • 4.2. Specification for a complex stormwater and roof drainage system is prepared.
  • 4.3. Testing and commissioning schedule is prepared.
  • 4.4. Operation and maintenance manual is produced.
No information
No information
Replaces
State Code National Code Title Type
W9650 CPCPCM5002A Design complex stormwater and roof drainage systems Unit of competency
Replaced By
State Code National Code Title Type
WF853 CPCPCM5012A Design complex stormwater and roof drainage systems Unit of competency
No information