Elements and Performance Criteria

RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Routine pool water tests may include:
free chlorine
total bromine
total chlorine
combined chlorine
pH
alkalinity
cyanuric acid
calcium hardness
total hardness
temperature.
Public health regulatory requirements may include:
health and poisons acts
infectious diseases regulations
dangerous goods act and regulations
metropolitan water supply, sewerage and drainage by-laws
environment legislation
local government regulations.
Organisational policies and procedures may include:
occupational health and safety
use and maintenance of equipment and resources
emergency and risk management procedures
chemical handling procedures
backwash procedures
filtration processes
isolation procedures
communication protocols
reporting and record keeping.
Relevant legislation may include:
occupational health and safety
relevant dangerous goods act
relevant environment legislation.
Pool water microbiological testing may include:
standard plate count
coliform count
pseudomonas aeruginosa
legionella
staphylococcus
cryptosporidium.
Pool water quality may include:
microbiological count
pH
clarity levels.
Water treatment procedures may include:
chemical disinfection
electrolytic generation of chlorine
superchlorination
shock dosing
dechlorination
chlorine stabilisation with cyanuric acid
control of algae
ozonisation
ultraviolet radiation
alkalinity adjustments
calcium and total hardness adjustments
lowering total dissolved solids
pool water filtration and recirculation
backwashing
manual removal of visible contaminants.

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, Range Statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Evidence of the following is essential:
develops and implements schedules for pool water microbiological testing and safely uses and calculates chemicals to maintain chemical balance of pool water
anticipates bather loadings and takes corrective action to ensure public health and safety
operates chemical dosing equipment for the treatment of pool water
updates pool records with information detailing water quality test results and corrective action taken.
Context of and specific resources for assessment
Assessment must ensure:
conduct of regular pool water quality tests and monitoring of results on sufficient occasions to demonstrate competency and consistency of performance.
Assessment must also ensure access to:
a suitable aquatic facility
equipment and resources required for the maintenance of pool water quality
public health regulatory requirements, relevant legislation and organisational policies and procedures.
Method of assessment
A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:
observation of the candidate safely handling chemicals, equipment and resources
oral or written questioning to assess knowledge of procedures for pool water testing and treatment
observation of the candidate calculating chemical requirements to correct imbalances
portfolio of written recordings detailing pool water test results and corrective action taken
third-party reports from a supervisor detailing the candidate's performance on the job.
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, for example:
SISCAQU303A Operate aquatic facility plant and equipment