CPCPPS5032 — Design siphonic stormwater drainage systems

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What an assessment for CPCPPS5032 must cover

56 assessable components: 4 elements (21 performance criteria), 2 performance evidence and 33 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 Evaluate design parameters.

1.1Establish scope of work for siphonic stormwater drainage systems.
1.2Determine design parameters from relevant statutory and regulatory requirements, codes, plans, specifications and client brief.
1.3Establish performance requirements considering safety of system users or building occupants.
1.4Apply sustainability principles and concepts as part of the design process.
1.5Interpret stormwater design manuals, manufacturer requirements and trade and technical manuals
1.6Conduct additional research, including a desktop study, to outline design parameters.
1.7Determine factors that contribute to quality, safety and time efficiency.
1.8Evaluate siphonic system attributes and conduct cost-benefit analysis, comparing a range of pipe materials and system designs.

2 Plan and detail system components.

2.1Integrate siphonic stormwater drainage systems with the building structure.
2.2Calculate volume of roof water and stormwater using approved methods.
2.3Plan layout of pipework systems including type and location of fittings.
2.4Calculate pipe size and flow requirements for applications according to stormwater collection requirements.
2.5Plan pipe supports for applications.
2.6Specify approved materials and components, jointing methods and installation requirements for siphonic stormwater drainage systems.

3 Design and size systems.

3.1Design siphonic stormwater drainage systems for applications.
3.2Calculate catchment areas, determine collection points and size siphonic systems.
3.3Design and size siphonic stormwater drainage systems using calculations and computer software packages.

4 Prepare documentation.

4.1Prepare client brief of the preferred design.
4.2Prepare plans and specification for siphonic stormwater drainage systems.
4.3Prepare testing and commissioning schedule.
4.4Produce operation and maintenance manual, including information on how to properly and safely maintain the system.

Performance evidence

designing, sizing and documenting the layout details, including a specification for two siphonic stormwater drainage system that include: a site incorporating a high-rise mixed development building; a wide span project (such as a large bulk goods warehouse)
preparing documentation which includes: evaluation and details of design parameters relevant to codes and manufacturer requirements for siphonic stormwater drainage systems; evaluation of health risks associated with the siphonic system; materials and components that are compliant, fit for purpose, durable, compatible and cost-effective.

Knowledge evidence

common terminology and definitions used in the design of siphonic stormwater drainage systems for residential, commercial and industrial buildings
drafting principles
nature of materials used and effects of performance under various conditions
procedures for estimating volume of stormwater run-off from rainwater collection areas
principles of technology in the design of siphonic stormwater drainage systems
work health and safety (WHS) requirements, including relevant statutory regulations, codes and standards
scope of work: calculation of rainfall intensities in given catchment areas: average rainfall intervals, meteorological information, rainfall intensities, stormwater collection area calculations, time and concentration
interpretation of plans and specifications
sizing and documenting layout of siphonic stormwater drainage systems for residential, commercial and industrial applications
design requirements: owner requirements, architectural plans, building specifications, pipework identification, catchment area, approved point of discharge, acoustic performance
siphonic system attributes: availability, cost, installation requirements, risks, site conditions
cost–benefit analysis to enable cost-effective choices to be made without compromising integrity of project: design styles, expected design life, labour costs, material costs, safety factors, speed of installation
statutory and regulatory requirements and relevant Australian Standards and codes: AS/NZS 3500 Plumbing and drainage set, AS 2200 Design charts for water supply and sewerage, Geberit or equivalent approved siphonic drainage system design criteria, Commonwealth, state or territory requirements and local governments requirements, National Construction Code (NCC), other relevant Australian Standards and codes
manufacturer requirements: material specifications, sizing tables, technical and trade manuals, special siphonic drainage collection inlets
information gathered during desktop study: architectural and building plans, manufacturer data, developer plans, applications, brochures, forms, policies, reports
performance requirements, including pipe flow velocities, flow conditions and discharge requirements established using relevant Australian Standards, codes and local authorities’ requirements
layout of pipework systems: acoustic performance, amenity of the building, clipping and pipe support, fireproofing, function of the building, impingement on floor heights, location of pipework (fire rating of enclosure), materials to be used, size of penetrations, type of building structure
principles of economy, serviceability, durability and fit for use
design which does not unduly affect building integrity and aesthetic appeal
fittings: bends, junctions
pipe size and flow requirement calculations: discharge, flow, manufacturers’ tables, sizing, according to relevant Australian Standards and codes, velocity, volumes
pipe supports: anchors, bracket spacing, corrosion protection, cover, hanging brackets, material requirements, saddles, wall and ceiling brackets, acoustic resilient mounts
appropriate materials specified, based on fit for purpose, durability, compatibility and cost-effectiveness: copper (Cu), polyethylene (PE), polypropylene (PP), stainless steel, other approved material, clips, fasteners, fittings, pipework, siphonic collection inlets
jointing methods: brazing, electrofusion welding, mechanical joints, rubber ring, other approved jointing methods
installation requirements: fire rating, level of workmanship, manufacturer-recommended specific fixings, pipe support, provision for expansion, serviceability and access, pipe protection: corrosion, impact
computer software packages: manufacturer software, proprietary design software
methods of applying sustainability principles and concepts: selecting appropriate material to ensure minimal environmental impact, efficient use of material, efficient energy usage/capital outlay comparison, effect on the environment due to overflow or leakage, consideration of the Green Building Council of Australia rating scheme
types of plans: axonometrics, elevations, details, cross-sections, isometrics, schematics, sections
plans produced using: computer generation, drawing equipment
specification: commissioning, bedding, support, jointing, manufacturer requirements, materials, testing, workmanship, WHS
testing: hydrostatic test, inspection, performance, quality assurance (QA) audit
commissioning schedule information: system certification, checking for foreign material, checking leaks, cleaning grates, system defects, system functions as per design
operation and maintenance information: as installed drawings, certification documentation, results of commissioning test, maintenance schedules, manufacturer brochures and technical information, check for blockages, leak detection, regular inspection, regular maintenance requirements.

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.

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Questions about assessing CPCPPS5032

What does an assessment tool for CPCPPS5032 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for CPCPPS5032 needs to address all 56 unit components: 4 elements with 21 performance criteria, 2 performance evidence requirements, 33 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 CPCPPS5032?

Auditori pulls the current release of CPCPPS5032 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.

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Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of CPCPPS5032, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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