Approved by: Process Manager Approval Date: 16/12/2021 Next Review: 16/122023 OceanaGold Waihi Document ID: WAI-250-PLN-003 Page 20 of 44 Hazardous Substances Management Plan 9.1 Evacuation Drills – for Location Compliance Certificate Evacuation Drills are required to be carried out to meet the Emergency Management requirements of the Location Compliance Certificate for HSNO. Regulations require evacuation testing for each substance annually, however the Compliance Certifier has accepted three evacuations (one each for fire, spill and acid) per year on the proviso evacuation for all substances are carried out once every two years. Monitoring completion is recorded in the Evacuation Drill register. • LPG – both fire and leak • Hydrogen Peroxide – practice / first aid • Activated carbon – fire • Hydrochloric acid or sodium hydroxide – spill to ground (eg into waterways) use first aid – this could be anyone of the acids. • Cyanide • Cryogenic (liquid oxygen) 10 MONITORING, REVIEW AND AUDIT 10.1 Monitoring In order to monitor the implementation and effectiveness of this PHMP a Critical Controls Check Sheet has been developed from the critical controls listed on this management plan. These are to be completed by the Department Manager (or their delegate) responsible for this Hazard on a yearly basis then presented to the SSE for final sign off. All corrective actions identified are to be entered into INX system which will track them until completion. 10.2 Review This PHMP and its associated risk assessment(s) will be reviewed: • After an incident that involves the hazard • After a substantial change in the management structure that may affect the management plan • After a physical change in plant used or installed at the mining operation that may affect the management plan • Or at least every 2 years, whichever occurs first. 10.3 Audit Annual Compliance Certificates are issued for the Site by an external accredited Compliance Certifier. An internal audit will be carried out every three years to ensure compliance. 11 CORRECTIVE ACTIONS Non-compliances with this management plan will be identified through incident or hazard reports, reviews and audits. All non-compliances identified will be investigated and corrective actions will be entered into the INX system which will be tracked until completed. 12 TRAINING All employees shall be provided with training, information, and instruction appropriate to the level of risk associated with a task using a hazardous substance. Supervisors shall ensure every worker who uses, handles, manufacturers or stores hazardous substances are competent in the safe use, handling and disposal of substances prior to assigning work tasks involving hazardous substances. Training shall include: • Information re the operations of the workplace where hazardous substances may be present • Location of reference material on the hazards, safe handling, storage and disposal within the workplace;
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