Waihi Emergency Principal Control Plan Approved by: General Manager/SSE Approval Date: 26/03/2021 Next Review:26/03/2022 OceanaGold Waihi WAI-250-PLN-001 Page 86 of 124 LIQUID CYANIDE SPILL PURPOSE • To provide guidelines for responding to a liquid cyanide spill HAZARDS • Cyanide usually fatal if ingested, absorbed through the skin, or HCN gas inhaled • Environmental damage RISK ASSESSMENT • Moderate SITE EMERGENCY COORDINATOR • Area Manager RESPONSE TO HAZARDS • Do not risk life • Mobilise emergency response team if required • Wear full face mask with appropriate filter or BA equipment • Monitor area for HCN gas • Wear full wet weather protective suit (rubber boots to be worn inside wet weather trousers and PVC gloves to be worn inside of wet weather jacket) • Keep area clear of bystanders EVACUATION • All non-emergency personnel to be kept clear of the area CONTAINMENT • Remain upwind of cyanide or spills and monitor for HCN gas • If possible stop cause of spillage • If spill not in bunded area, construct an earth bund to contain • Pump spillage back to holding tank, process or tailings dam • Neutralise spill area with ferrous sulphate • If necessary remove contaminated soil to tailings dam SPECIAL EQUIPMENT • Breathing apparatus and full face respirator and appropriate filter • Pump and hoses • Skid steer loader and/or FEL EMERGENCY ACTION POINTS • Ensure Site Emergency Co-ordinator is given requested support • Keep an emergency logsheet • Ensure mine management is advised of the emergency at first opportunity and kept up to date EMERGENCY CONTACTS • See general listing in appendix 5 for contact telephone numbers EXTERNAL RESOURCES • National Poison Centre 0800 764 766 • Waihi Medical Centre 863 8195
RkJQdWJsaXNoZXIy MjE2NDg3