Simulated workplaceCAQA Deepridge Resources is a fictional business created by CAQA for training and assessment. It is not a real company and no person, client or record here is real.About this simulation
RIICAQA DeepridgeSimulated workplace
Simulated workplace
Scenario · Civil Infrastructure

Plan the excavation across the gas main at chainage 262

You are the leading hand on the Elm Street drainage crew.

Intermediate2 to 3 hours7 tasks
Start the tasksAll scenarios
Home/Scenarios/Plan the excavation across the gas main at chainage 262
The situation

What has happened

Work order WO-2026-118 for Wattle Shire Council is a 90 metre stormwater drainage replacement on Elm Street. On Friday 11 September 2026 the trench reaches the gas main crossing at chainage 262. The service plans and the locator survey are on the work order, the main has been potholed by vacuum excavation, and an excavation permit is issued for a 2.1 metre deep trench with a trench shield. The asset owner's conditions require hand or vacuum excavation within the no-go zone and their attendance for any work within 500 millimetres of the main. The company has had no service strikes in twelve months.

Your brief. Plan the excavation across the gas main under the Underground Services Location and Excavation Procedure, prepare the job hazard analysis with the crew, update the excavation permit and the work order, and set out the response if the main is struck.
Read the work request in your inbox
Tasks

Deliverables

  • No-go zone and excavation method plan
  • Completed Job Hazard Analysis Form
  • Updated excavation permit
  • Service strike response steps

Documents to use

Systems to use

Project and Drilling Work Orders

Work orders for civil projects and drilling programs with the client, scope, plans and permits attached, crew and progress.

Permit to Work and Isolation Register

Permits for isolation, confined space, hot work, working at heights and excavation, with the isolations applied, the crew and the permit status.

Hazard and Incident Register

The register of hazards, near misses, high potential incidents, injuries, environmental events and complaints with investigation status and corrective actions.

For trainers and assessors

Units of competency

Current on training.gov.au for the Resources and Infrastructure Industry Training Package as at 10 September 2026.

RIICCM202Identify, locate and protect underground services
RIICCM203ERead and interpret plans and job specifications
RIICCM210Install trench support
RIIWHS302Implement traffic management plans
RIIMPO320Conduct civil construction excavator operations

Qualifications

RII30926Certificate III in Civil Construction
RII20720Certificate II in Civil Construction
Assessor notes

What to look for

Evidence guide

The plan must treat the service plans as indicative, apply the no-go zone correctly, use non-destructive methods inside it and keep a spotter on mechanical excavation. Look for the asset owner's conditions carried into the permit and the job hazard analysis, a trench shield used for the 2.1 metre depth, and a strike response that stops, isolates, calls and records.

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.