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Elements and Performance Criteria

  1. Prepare for trade wastewater sampling and testing
  2. Identify the need to sample based on trade waste customer risk, sewer catchment and infrastructure issues.
  3. Conduct trade wastewater sampling and testing
  4. Finalise work
  5. Prepare for trade wastewater sampling and testing
  6. Conduct trade wastewater sampling and testing
  7. Finalise work

Performance Evidence

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. The candidate must be assessed in both types of sampling processes and at least two types of field tests 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.

conducting hazard and risks assessments

planning working activities

applying procedures and standards

performing task-related calculations

maintaining a safe work environment

using automatic samplers and flow measurement equipment

using recording equipment (i.e. pH or temperature recorder) and field test kits

conducting trade waste tests on-site according to specifications

disposing of waste and spent samples

identifying which parameters can be analysed in-field and which need laboratory testing

identifying necessary equipment and resources for sampling and testing (i.e. field test kits, preservation reagents)

selecting appropriate sample jars and preparing documentation (labels, chain of custody and other required forms, i.e. inspection sheets)

installing sampling, flow measuring (if applicable) and recording equipment in accordance with manufacturers’ specifications and site specific conditions

applying labels to samples and prepare appropriate documentation for external analyses


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.

relevant policies and procedures including chain of custody

relevant standard methods for testing of water

range and purpose of basic water quality testing and sampling

abnormal characteristics of water samples

relevant calculations

storage of reagents

relevant legislative and organisational requirements

trade waste sample preparation:

prevention of contamination

volume of sample

appropriate containers

preservation

location selection

equipment

documentation and transportation procedures for trade waste samples

disposal procedures for excess trade waste samples

sampling and testing requirements

water quality parameters of significance to a range of trade waste discharges

hazards associated with collection of trade waste samples