Unit of competency Outline

Date retreived
22/07/2026 7:58 AM AWST

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Design water treatment systems

Design water treatment systems

Unit of competency
National Code
AHCWAT504
State Code
OCS95
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
24/12/2020
View on TGA
State Implementation and Classification
Approved Date
21/05/2021
Field of Education
030907 - Water And Sanitary Engineering
Original Release Date
21/05/2021
Nominal Hours
110
Description
This unit of competency describes the skills and knowledge required to identify design requirements, determine specifications, pumping and power system requirements, capital expense and operating expense budgets, and design water treatment systems.The unit applies to individuals who apply specialised skills and knowledge to the design of water treatment systems, and take personal responsibility and exercise autonomy in undertaking complex work. They analyse and synthesise information, and analyse, design and communicate solutions to sometimes complex problems.All work is carried out to comply with workplace procedures, health and safety in the workplace requirements, legislative and regulatory requirements, and sustainability and biosecurity practices.No licensing, legislative or certification requirements apply to this unit at the time of publication.
Notes
Elements and Performance Criteria
1. Determine design requirements
  • 1.1 Determine the quality of water to be treated and level of treatment required to meet water treatment system quality requirements
  • 1.2 Develop construction specifications that define the work required to treat water
  • 1.3 Identify and protect environmentally sensitive areas according to local, state and federal legislation and regulations
  • 1.4 Document design calculations and requirements
2. Determine pumping and power system requirements
  • 2.1 Identify and select pumps that can treat water efficiently and at the flow and the pressure required to operate the distribution system
  • 2.2 Select pump and pump motor combinations that are efficient, reliable, functional, serviceable and flexible for the intended application
  • 2.3 Determine energy requirements and layout of electricity lines, and check with local authorities
  • 2.4 Optimise the relationship between capital and operational costs, and compare energy sources
  • 2.5 Select structures, valves and accessories and integrate into a functional system that can be monitored and maintained
  • 2.6 Document performance indicators, design calculations and decisions
  • 2.7 Design construction specifications that define the work required to make a suitable pumping and power system
3. Design a water treatment system
  • 3.1 Evaluate treatment systems and design with respect to a range of key variables
  • 3.2 Size pipes, valves and fittings according to design system specifications so that capital cost is balanced against operation costs over the anticipated system life
  • 3.3 Calculate and document flows, water levels and pressures so that they are within the acceptable tolerances for optimum performance
  • 3.4 Confirm that flows, water levels and pressures are achievable by the pumps operating at optimum efficiency
  • 3.5 Include mechanisms for controlling and adjusting pressure in system design
4. Determine capital expense budget
  • 4.1 Document design calculations and decisions, and communicate relevant information through plans, specifications and manuals
  • 4.2 Determine and document materials required from plans and specifications
  • 4.3 Estimate labour requirements based upon documented work schedule with reasonable allowance for variances in work schedules
  • 4.4 Base costing attributed to each component on quoted information from suppliers, or sound analysis of individual elements
  • 4.5 Document capital expense budget
  • 4.6 Confirm design and capital expense budget output with an appropriately experienced and qualified person
5. Determine operating expense budget
  • 5.1 Calculate an operating expense budget that includes all expenses applicable to the completed system
  • 5.2 Document operating expense budget
No information
No information
Replaces
State Code National Code Title Type
BAN20 AHCWAT501 Design water treatment systems Unit of competency