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Elements and Performance Criteria

1. Prepare for wastewater sampling and testing
   • Receive instructions for taking samples and conducting basic water quality tests.
   • Confirm and record samples and tests to comply with requirements.
   • Select, check and prepare equipment and resources.
   • Select and apply relevant sample preservation methods.
   • Select, fit and use personal protective equipment.
2. Conduct wastewater sampling and testing
   • Adopt hygienic work practices.
   • Collect samples ensuring that types, locations and times comply with requirements.
   • Prepare samples for off-site laboratory testing according to requirements.
   • Maintain integrity of samples during sampling and on-site testing.
   • Conduct basic on-site wastewater tests.
   • Assess and report abnormal characteristics and apply incident management principles.
   • Record samples and results of on-site analysis.
   • Limit hazards and contamination to self, work area and environment.
3. Finalise work
   • Apply chain of custody principles.
   • Report observations or measurements requiring further action.
   • Dispose of samples and clean and store test equipment.
   • Clear and restore work area.
4. Prepare for wastewater sampling and testing
   • Receive instructions for taking samples and conducting basic water quality tests.
   • Confirm and record samples and tests to comply with requirements.
   • Select, check and prepare equipment and resources.
   • Select and apply relevant sample preservation methods.
   • Select, fit and use personal protective equipment.
5. Conduct wastewater sampling and testing
   • Adopt hygienic work practices.
   • Collect samples ensuring that types, locations and times comply with requirements.
   • Prepare samples for off-site laboratory testing according to requirements.
   • Maintain integrity of samples during sampling and on-site testing.
   • Conduct basic on-site wastewater tests.
   • Assess and report abnormal characteristics and apply incident management principles.
   • Record samples and results of on-site analysis.
   • Limit hazards and contamination to self, work area and environment.
6. Finalise work
   • Apply chain of custody principles.
   • Report observations or measurements requiring further action.
   • Dispose of samples and clean and store test equipment.
   • Clear and restore work area.

Range Statement

On-site test include:	turbidity pH dissolved oxygen electrical conductivity temperature
Sampling conditions include:	physical microbial chemical radiological
Sampling methods include:	automatic manual

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Performance Evidence

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. To be deemed competent the candidate must be assessed in a minimum of three of the types of tests, one of the types of condition and one of the types of methods listed in the Range of Conditions. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

calibrating testing equipment

interpreting sampling and testing requirements

preparing, checking and using equipment

preparing, collecting, labelling and preserving water samples

disposing of waste and spent samples

planning and preparing for water sampling tasks

recording all required information

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Knowledge Evidence

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

Basic knowledge of:

chain of custody

range and purpose of basic wastewater testing and sampling

relevant policies and procedures

blind sampling

abnormal characteristics of water samples

atypical test result data

relevant work-related calculations

maintenance and storage of reagents

requirements for maintaining sample integrity

relevant legislative and organisational requirements

water sample preparation

work planning processes

effects of weather and conditions on work

hazards associated with collection of water samples

incident management principles

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