QG
04
RPD WHS · Quick Guide

Silica Dust

You can't see the dust that does the damage. Wet it, extract it, and wear the right mask — every cut, every time.

Field guideOwner · Site SupervisorRPD WHS Manual V8.0
Start safeControl the riskStop when it changes
Scroll the journey
1

When it applies

If you're doing any of this, this guide is in play.

Concrete cutting
Chasing
Grinding
Drilling
Jackhammering
Scabbling
Render removal
Mortar work
2

Before you start

Before the work begins, the Site Supervisor confirms — and you check your own work area.

Silica-containing materials

Task duration

Ventilation

Other persons nearby

Waste handling

3

The controls

Work down the hierarchy — collective protection first, PPE last. PPE never carries the job on its own.

EliminateDesign the hazard out
SubstituteUse a lower-risk method
IsolateSeparate people from the hazard
EngineeringGuard, extract, contain
AdminSWMS, permits, training, signage
PPELast line — fitted & worn

The RPD rule

Use wet methods or on-tool extraction, isolate the work, wear fit-tested respiratory protection, and clean with wet methods or a HEPA vacuum.

Wet methodsOn-tool extractionFit-tested RPEHEPA clean-up
Hold point — never skip

Dry processing is not permitted unless an approved risk assessment confirms equivalent controls.

Wet suppression or on-tool extraction goes on the tool before the first cut — not after the dust appears.

5

Stop & escalate

See any one of these? The job stops until it's fixed — no exceptions.

  • Dust visible outside the work zone
  • Extraction or water suppression fails
Stop work→ tell the Site Supervisor → don't restart until the control is back and the SWMS is reviewed.
6

What gets recorded

The job isn't done until the evidence exists. Live records go in Breadcrumb.

Breadcrumb · live site

  • SWMS
  • SDS if product-related
  • Inductions / training records
  • Pre-starts & toolbox talks
  • Hazard reporting for uncontrolled dust