Event Controls (Mitigation/ Management Measures) Residual risk assessment Controls to reduce likelihood Controls to reduce severity of consequence Likelihood Consequence Risk Unplanned detonation in explosives store Design, testing, inspection, certification and maintenance of the explosives storage magazine in accordance with standards set out in the HSW-HS, including provisions for lightning interception. Adherence to WorkSafe requirements including the establishment of a certified Hazardous Substance Location prohibiting ignition sources and incompatible substances and ensuring the appropriate separation distances and fire protection systems are available. Strict security, access restriction and inventory monitoring for storage area. Store location selected for internal separation distance to off-site properties. Segregated storage area for explosive substances, away from other hazardous substances and buildings. Emergency Management Plan will be in place including firefighting provisions and evacuation plans. Unlikely – storage site has high security, multiple ignition prevention and fire suppression systems in place. Minor – see quantitative assessment in Section 7.3.2 of this report. Low
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