CPCPDR4012 — Design and size stormwater drainage systems
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What an assessment for CPCPDR4012 must cover
28 assessable components: 2 elements (8 performance criteria), 6 performance evidence and 14 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.
Elements & performance criteria
1 Identify system requirements.
- 1.1Access, read and determine design requirements from plans, specifications, relevant manufacturers requirements, Australian Standards and jurisdictional requirements.
- 1.2Identify and apply workplace policies and procedures, work health and safety (WHS) and environmental requirements.
- 1.3Identify stormwater catchment and flow requirements.
- 1.4Select stormwater pipe size to conform to regulatory authorities and main or street kerb, including discharge flow and levels to verify grades and cover.
- 1.5Determine stormwater requirements for retention pit, silt and flotation arrestor pit, rainwater tank and stormwater overflow discharge locations to suit job requirements.
2 Design system layout.
- 2.1Develop and size system layout in accordance with manufacturer’s requirements, Australian standards and jurisdictional requirements.
- 2.2Use the proposed design to identify and specify optimal materials required.
- 2.3Produce final system layout plans to relevant drawing design standards.
Performance evidence
- designing, sizing and documenting the layout details of a surface and sub-soil stormwater drainage system for:
- a residential design that comprises a dwelling (Class 1a),
- a commercial Class 6 building, and
- a unit complex comprising at least eight (Class 1a) dwellings.
- include drainage to the legal point of discharge to the external stormwater drainage network
- complete the work according to development plans, specifications, Australian standards, workplace procedures and client specifications.
Knowledge evidence
- the process of planning, sizing and documenting the layout of stormwater and sub-soil drainage systems
- catchment, rainfall intensity and run-off calculations
- characteristics and application of different pipe systems, including their fittings
- non-gravitational stormwater systems
- onsite stormwater management
- design concepts and performance measures for stormwater and sub-soil drainage systems
- principles of water flow and stormwater and sub-soil drainage
- contour, reduced and invert levels
- drawing instruments and sketching techniques, including the use of conventional symbols
- use of computers for documentation
- computer-aided design (CAD) software
- how to access relevant information, including codes and standards
- tools, materials and equipment used to design, size and document the layout of surface and sub-soil stormwater drainage systems up to legal points of discharge
- work health and safety (WHS) requirements to design, size and document the layout of surface and sub-soil stormwater drainage systems up to legal points of discharge
Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.
See what you get before you start
Real, unedited Auditori output (RIIHAN201E shown), branded for a sample RTO:
Questions about assessing CPCPDR4012
What does an assessment tool for CPCPDR4012 need to cover?
To satisfy the Principles of Assessment and Rules of Evidence, an assessment for CPCPDR4012 needs to address all 28 unit components: 2 elements with 8 performance criteria, 6 performance evidence requirements, 14 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.
How does Auditori generate an assessment tool for CPCPDR4012?
Auditori pulls the current release of CPCPDR4012 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.
Is the first assessment tool really free?
Yes. Every new account includes one free credit — enough to generate the complete assessment tool for CPCPDR4012 — with no card and no subscription required. After that it's pay-as-you-go per unit.
Can I check my existing CPCPDR4012 assessment instead of generating a new one?
Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of CPCPDR4012, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.
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