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Scenario · Analytical Chemistry

Review and authorise the Kiama treatment plant licence report

You are the acting authorised signatory for general chemistry.

Advanced2 to 3 hours7 tasks
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The situation

What has happened

Kiama Shire's fortnightly licence monitoring sample VL26-08834 has been analysed for biochemical oxygen demand, suspended solids, ammonia, total nitrogen and total phosphorus, and the results are in the sample register at Awaiting review. The council must submit its monthly licence return and has asked for the report by Friday, when Priya Venkatesan is on leave. Amara Okonkwo has authorised you to act as signatory for general chemistry. The ammonia result is higher than the previous six results for this plant, and a nonconformance earlier this month recorded a holding time breach on a similar sample. The council's environment officer is likely to call for a verbal result if the report is late.

Your brief. Take the batch through technical review against the procedure, compare results with the plant's history, confirm quality control and nonconformance status, decide whether the report can be authorised and issue it or record why it cannot, and handle any verbal result request correctly.
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Tasks

Deliverables

  • Technical review checklist with decisions
  • Historical comparison note on the ammonia result
  • Authorised report or release withheld record
  • Register status updates
  • Verbal results record

Documents to use

Systems to use

Sample Register

The laboratory information register of every sample received, its matrix, tests, storage, holding time and progress from receipt to reported.

Nonconformance and Corrective Action Register

Records every nonconformance, out of control result, deviation, complaint and audit finding with its evaluation, root cause, corrective action and closure.

Client Job Register

Tracks client enquiries, quotes and jobs from request to invoice, with the agreed scope, turnaround and reporting status.

For trainers and assessors

Units of competency

Current on training.gov.au for the Laboratory Operations as at 10 September 2026.

MSL935005Authorise the issue of test results
MSL925006Analyse data and report results
MSL924005Process and interpret data
MSL915003Provide information to customers

Qualifications

MSL50122Diploma of Laboratory Technology
MSL60122Advanced Diploma of Laboratory Management
Assessor notes

What to look for

Evidence guide

The candidate must check their own authorisation before signing, apply the review steps in order and record decisions, treat the anomalous ammonia result with genuine scrutiny rather than accepting or rejecting it on instinct, and either authorise with all report elements present or withhold with a documented reason. The verbal results record must follow the procedure's limits.

The student's evidence summary lists every record they created or changed in the systems named above, their notes and the tasks they ticked. Verify it against the deliverables and your own assessment tool.