Risk Assessment Control

ID Risk Assessment Control Control Role Required Performance Verified Effective
1 Crusher operators — respirable crystalline silica Crusher discharge dust suppression spray bars PREVENTIVE Visible suppression at the discharge chute with sp... ✗
2 Crusher operators — respirable crystalline silica Pressurised crusher control room PREVENTIVE Positive differential pressure maintained; filter ... ✓
3 Crusher operators — respirable crystalline silica PAPR for chute clearing and liner work MITIGATING PAPR worn for the whole of chute clearing and line... ✗
4 Crusher operators — respirable crystalline silica Dry sweeping prohibition PREVENTIVE No dry sweeping observed during plant inspections. ✓
5 Underground development crew — diesel particulate ... Underground primary and auxiliary ventilation PREVENTIVE Quantity at each active heading meets the diesel k... ✓
6 Underground development crew — diesel particulate ... Tier 4 low-emission engine fleet replacement PREVENTIVE Not yet implemented — proposal stage. ✗
7 Underground development crew — diesel particulate ... Wet drilling on development jumbos PREVENTIVE Water flow verified at prestart on every drilling ... ✓
8 Workshop maintenance — welding fume Welding bay local exhaust ventilation PREVENTIVE Capture velocity of 0.5 m/s at the arc — NOT met a... ✗
9 Haul truck operators — respirable dust Haul road watering and dust suppressant schedule PREVENTIVE No visible dust behind a loaded truck under normal... ✓
10 Post-blast re-entry — carbon monoxide and nitrogen... Post-blast exclusion time and gas clearance PREVENTIVE Gas clearance recorded before every re-entry autho... ✓
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