Unit of competency Outline

Date retreived
22/07/2026 10:14 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.

Plan, size and lay out stormwater drainage systems

Plan, size and lay out stormwater drainage systems

Unit of competency
National Code
CPCPDR4002A
State Code
W9663
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
19/05/2011
State Implementation and Classification
Approved Date
10/03/2010
Field of Education
040327 - Plumbing
Original Release Date
10/03/2010
Nominal Hours
32
Description
Notes
Elements and Performance Criteria
No information
handling of materials
hazard control
hazardous materials and substances
personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices
safe operating procedures, including recognising and preventing hazards associated with:
other machines
surrounding structure and facilities
trip hazards
underground services
use of tools and equipment
work site visitors and the public
working at heights
working in confined spaces
working in proximity to others
use of firefighting equipment
use of first aid equipment
workplace environment and safety.

be gravity, pumped and displacement operated
terminate at point of connection with external stormwater drainage network, including:
disposal pit
easement
gutter
on-site storage tank
stormwater drain
sub-soil disposal system.

clean-up protection
stormwater protection
waste management.

CAD software
drawing instruments
ladders
laser measuring devices
measuring equipment.

authority mains or kerb
charts and hand drawings
diagrams or sketches
instructions issued by authorised organisational or external personnel
job drawings
manufacturer specifications and instructions
material safety data sheets (MSDS)
maximum discharge rates allowed
memos
organisation work specifications and requirements
possible locations of stormwater components
regulatory and legislative requirements, particularly those pertaining to:
building codes
OHS and environmental requirements
plumbing regulations
relevant Australian standards, including AS/NZS3500 National plumbing and drainage set: Part 2.2 Sanitary plumbing and drainage - Acceptable solutions
safe work procedures relating to planning, sizing and documenting the layout of stormwater drainage systems
signage
site relative levels
stormwater flow rates
verbal, written and graphical instructions
work bulletins
work schedules, plans and specifications.

drafting and drawing materials
relevant plans and specifications.

state or territory statutory authority
statutory plumbing authority.

Overview of assessment
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services workplace conditions, materials, activities, responsibilities and procedures.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

A person who demonstrates competency in this unit must be able to provide evidence of:

locating, interpreting and applying relevant information, standards and specifications to planning, sizing and documenting the layout of a stormwater drainage system
applying safety requirements throughout the work sequence, including the use of personal protective clothing and equipment

as a minimum, the ability to plan, size and document the layout details of a surface and sub-soil stormwater drainage system for a residential unit development of at least five two-storey (Class 1) units and a commercial (Class 2) building, which includes drainage to the point of connection to the external stormwater drainage network (or approved point of discharge), ensuring:

correct identification of plan details
correct selection and use of appropriate processes, tools and equipment
completion of all work to specification
compliance with regulations, standards and organisational quality procedures and processes
communicating and working effectively and safely with others.

Context of, and specific resources for assessment
This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.
Assessment of essential underpinning knowledge will usually be conducted in an off-site context.
Assessment is to comply with relevant regulatory or Australian standards' requirements.

Resource implications for assessment include:

an induction procedure and requirement
realistic tasks or simulated tasks covering the mandatory task requirements
relevant specifications and work instructions
tools and equipment appropriate to applying safe work practices
support materials appropriate to activity
workplace instructions relating to safe working practices and addressing hazards and emergencies
material safety data sheets
research resources, including industry related systems information.
Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Method of assessment

Assessment methods must:

satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Integrated Framework Training Package
include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application
reinforce the integration of employability skills with workplace tasks and job roles
confirm that competency is verified and able to be transferred to other circumstances and environments.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge
all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.
Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.
Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.

Replaced By
State Code National Code Title Type
D7432 CPCPDR4012A Design and size stormwater drainage systems Unit of competency
State Code National Code Title Type
W727 CPC40909 Certificate IV in Plumbing and Services Qualification
W613 CPC40908 Certificate IV in Plumbing and Services Qualification