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NWPCAQA ClearFlowSimulated workplace
Simulated workplace
Scenario · Networks and Maintenance

Inspect a sewer by camera and plan a confined space entry

You are a network maintenance operator preparing to lead your first confined space entry.

Intermediate3 to 4 hours8 tasks
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The situation

What has happened

Work order WO-26-4428 covers a camera inspection of 300 metres of 150 millimetre vitrified clay sewer in Kialla township between manhole S-1102 and S-1106, where repeated blockages suggest root intrusion. The camera gets 110 metres from S-1102 before a root mass stops it. The Crew Leader has decided that the roots must be cut from the downstream manhole and that an entry to S-1104 will be needed to set the cutter and recover a stuck camera skid. The manhole is 3.2 metres deep on a road verge. Jordan Reyes wants you to prepare the entry permit as a draft for review, with every control specified, and to record the camera findings.

Your brief. Complete the camera inspection, record and code the defects found, decide whether entry can be avoided, and where it cannot, prepare a complete Confined Space Entry Permit with hazards, isolations, gas testing, ventilation, standby, rescue and communication controls as a draft in the Permit to Work Register for the Crew Leader to check.
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Tasks

Deliverables

  • Camera inspection record on the work order with coded defects
  • Entry avoidance assessment
  • Completed Confined Space Entry Permit at Draft in the register
  • Note to the Crew Leader listing the controls to be verified

Documents to use

Systems to use

Network Work Orders

Tracks every reactive and planned job on the water and sewer networks, plants, storages and channels from dispatch to completion.

Permit to Work Register

Records every confined space entry, excavation, hot work and isolation permit with the permit holder, controls, gas readings and close-out.

For trainers and assessors

Units of competency

Current on training.gov.au for the National Water Training Package as at 10 September 2026.

NWPNET037Inspect sewer or stormwater assets
NWPNET063Use digital imaging equipment in the field
NWPNET040Maintain and repair network assets for wastewater
NWPGEN017Apply the risk management principles of the water industry standards, guidelines and legislation

Qualifications

NWP30222Certificate III in Water Industry Operations
Assessor notes

What to look for

Evidence guide

The student must show that entry is the last option after remote methods are considered. The permit must specify gas limits that match the procedure, a ventilation and retest step, a standby person who never enters, a retrieval-based rescue plan and flow isolation. Look for the camera record to be coded and located by chainage. The permit must be left at Draft, not issued, by the student.

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.