CPCPPS5025 — Design grey water re-use systems

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What an assessment for CPCPPS5025 must cover

308 assessable components: 4 elements (23 performance criteria), 3 performance evidence and 282 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 design of grey water re-use systems for wide span and high-rise building projects.
1.2Establish performance requirements considering the safety of system users or building occupants.
1.3Determine design requirements from relevant Australian Standards, codes, plans, specifications and client brief.
1.4Identify potential household or community health and environmental risks and take measures to protect public health that impact the design parameters.
1.5Apply sustainability principles and concepts as part of the design process.
1.6Conduct additional research to outline design parameters.
1.7Interpret manufacturer requirements and trade and technical manuals for grey water re-use systems.
1.8Conduct cost-benefit analysis for implementing the proposed design.

2 Plan and detail system components.

2.1Detail primary, secondary and advanced secondary treatment and tertiary systems.
2.2Plan layout of pipework systems including type and location of fittings, valves, controls and other system components.
2.3Design and detail changes to building drainage system and identify inspection requirements.
2.4Evaluate and detail grey water land application, disposal, diversion, storage and wet weather storage options to identify problems and plan solutions.
2.5Plan and detail stored and pressurised grey water systems for irrigation, sanitary flushing and other approved uses.
2.6Plan and detail storage tanks and approved disposal options.
2.7Calculate pipe size and pump duty and size and detail pumpwell, pump and pump control requirements.
2.8Evaluate approved materials and jointing methods for grey water re-use systems, design pipe supports and specify installation requirements.

3 Design and size systems.

3.1Design grey water re-use systems for residential, commercial and industrial applications which include water treatment and backflow protection of drinking and non-drinking water supply systems.
3.2Design grey water re-use systems to ensure that the systems can be properly and safely maintained.
3.3Design and size grey water re-use systems using relevant computer software packages.

4 Prepare documentation.

4.1Prepare client brief of the proposed design.
4.2Prepare plans and specifications for grey water re-use 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 of a greywater re-use system for a high-rise mixed development building and a wide span project, including: a specification for both
planning and detailing systems components, including: storage tanks, system overflow, treatment systems, piping systems, plumbing systems, usage systems
designing and sizing a grey water re-use system.

Knowledge evidence

approved installation methods
hazards associated with devices and systems used in the hydraulic sector
nature of materials and effect of their performance in a variety of conditions
organisational quality procedures and processes
principles of technology in the design of grey water re-use systems for residential, commercial and industrial applications to include water treatment and backflow protection of drinking and non-drinking water supply systems
terminology and definitions used in hydraulic design
work drawings and specifications
work health and safety (WHS) requirements, including relevant statutory regulations, codes and standards
scope of work:
interpretation of plans and specifications
sizing and documenting layout of grey water re-use systems for residential, commercial and industrial applications to include water treatment and backflow protection of drinking and non-drinking water supply systems
design requirement:
architectural plans
building specifications
owner requirements
pipework identification
sizing of pipework
backflow protection of drinking and non-drinking water supply systems
water treatment
specialist water use applications
health risks:
abdominal pain
acute enteritis
bacillary dysentery
chest pain
cholera
common colds
coughing
diarrhoea
digestive and nutritional disturbances
dysentery
fever
gastroenteritis
giardiasis
helminthes, including flukes and worms
hepatitis
hookworm disease
infectious hepatitis
meningitis
muscle aches
neurological symptoms, including nervousness and insomnia
poliomyelitis
respiratory infections, such as pneumonia
restlessness
salmonellosis (food poisoning)
taeniasis
toxoplasmosis
typhoid fever
vomiting
weight loss
environmental risks:
algal blooms
excess nutrient loads
fish kills
oxygen depletion
measures to protect public health:
auditing
contact avoidance
contact minimisation
disinfection and sterilisation
education
legislation
licensing
maintenance
separation barriers
set back distances
timing discharges
wet weather storage
cost-benefit analysis comparing:
the range of suitable materials and system choices available to enable cost-effective choices to be made without compromising integrity of project
water savings and environmental benefits against initial and ongoing maintenance costs
national water programs, statutory and regulatory requirements, relevant Australian Standards, and codes:
AS/NZS 1546 On-site domestic wastewater treatment units
AS/NZS 1547 On-site domestic wastewater management
AS/NZS 3500 Plumbing and drainage set
AS 2200 Design charts for water supply and sewerage
National Construction Code (NCC)
Commonwealth, state or territory government policies, including health departments
manufacturer requirements:
material specifications
grey water treatment systems
pump installation
pipe sizing
storage systems
technical and trade manuals
information gathered during desktop to support design purposes:
architectural and building plans
developer plans
manufacturer data
building applications
brochures
forms
policies
reports
performance requirements including compliance limits for:
bacteria levels
chlorine levels
nutrients
pH
phosphates
performance requirements established using relevant Australian Standards, codes and local authority plans:
cover
discharge
flow conditions
pipe grades
layout of pipework systems:
drainage systems
elevated pipework systems
gravity systems
pumped and rising mains
requirements for irrigation systems
requirements for flushing water systems
stack systems:
fully vented
fully vented modified
single stack
single stack modified
waste stack
two-pipe system
reduced velocity aerator system
layout of pipe work system design:
designing pipework systems to not unduly affect building integrity and aesthetic appeal
location of pipework (fire rating of enclosure)
demonstrating principles of economy, serviceability, durability and fit for use
fittings, valves and controls:
backflow prevention devices
irrigation control systems
isolating valves
level indicators
pump controls
land application options:
surface irrigation
subsurface irrigation
spray irrigation
storage tanks:
connections
containment
location
material
overflow provision
pumps
sizing
support
switches
valves
vermin control
pipe size and pump duty calculations:
calculating pipe sizing
calculating pressure and flow requirements
determining flow and fixture loadings
interpreting design charts and tables
pump well, pump and pump control requirements:
automatic controls
capacity
corrosion-resistant materials
detailing
high and low-level water controls and alarms
inlet and outlet design requirements
installation and mounting requirements
macerator requirements
pump sizing
pump well sizing
selection of pump type
valve requirements
warning system
materials:
copper (Cu)
polypropylene (PP)
polybutylene (PB)
polyethylene (PE)
unplasticised polyvinyl chloride (uPVC)
other approved material
jointing methods:
brazing
compression joints
electrofusion welding
mechanical joints
solvent cement
threading
other approved jointing methods
pipe supports:
anchors
bedding
bracket spacing
concrete support
corrosion protection
manufacturer-recommended specific fixings
material requirements
provision for expansion
saddles
installation requirements:
pipe protection such as:
cover
corrosion
impact
fire rating
level of workmanship
manufacturer-recommended specific fixings
pipe support
provision for expansion
serviceability and access
methods for applying sustainability principles and concepts:
selecting appropriate material to ensure minimal environmental impact
efficient use of material
efficient energy usage/capital outlay comparison
local environment consideration
water efficiency
re-use of greywater
consideration of the Green Building Council of Australia rating scheme
types of plans:
axonometrics
cross-sections
details
elevations
isometrics
sections
schematics produced using:
computer generation
drawing equipment
specification:
backflow prevention
flow requirements
jointing
manufacturer requirements
materials
residual pressures
work health and safety (WHS)
specialised components
storage
support
testing
valve selection
water treatment
workmanship
testing for:
air pressure
backflow protection
defect inspection
drainage inspection
hydrostatic
performance:
flow
pressure
water quality
quality assurance (QA) audit
commissioning schedule information:
balancing disposal system
flow and pressure adjustments
leak check
pump settings
pressure test
safety requirements
system certification
system flushing
system defects
system functions as per design
system purge
valve operation
ventilation
vermin control
operation and maintenance manual information:
as installed drawings
certification documentation
land application compliance checks
maintenance schedules
manufacturer brochures
ongoing maintenance requirements
pump maintenance
regular inspections
results of commissioning test
safety management system
surface ponding checks
system detail, setting and operations
valve function
system operational parameter adjustments and checks:
chlorine levels
dissolved oxygen
nitrates
pH
phosphates
suspended solids
water quality.

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 CPCPPS5025

What does an assessment tool for CPCPPS5025 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for CPCPPS5025 needs to address all 308 unit components: 4 elements with 23 performance criteria, 3 performance evidence requirements, 282 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 CPCPPS5025?

Auditori pulls the current release of CPCPPS5025 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 CPCPPS5025 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing CPCPPS5025 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 CPCPPS5025, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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