Approved by: Process Manager Approval Date: 16/12/2021 Next Review: 16/122023 OceanaGold Waihi Document ID: WAI-250-PLN-003 Page 3 of 44 Hazardous Substances Management Plan Table of Contents 1 PURPOSE ...................................................................................................................................... 6 2 SCOPE ........................................................................................................................................... 6 3 LEGAL REQUIREMENTS ............................................................................................................. 6 4 MANAGEMENT SYSTEMS ........................................................................................................... 6 4.1 HSEC Management System ......................................................................................... 6 4.2 Hierarchy of Controls ................................................................................................... 7 4.2.1 Health and Safety at Work Act .........................................................................7 4.2.2 Health and Safety at Work (Hazardous Substances) Regulations...................8 4.3 Risk Assessment Process ........................................................................................... 9 4.3.1 Training and Competency.................................................................................9 4.3.2 Hazard Identification .........................................................................................9 4.3.3 Risk Management Process.............................................................................10 4.4 Preventative and Corrective Actions .......................................................................... 11 4.5 Communication ............................................................................................................. 11 5 HAZARDS IDENTIFIED AND RISK MANAGEMENT ................................................................... 12 6 ROLES AND RESPONSIBILITIES................................................................................................ 13 7 PROCEDURE................................................................................................................................. 15 7.1 Process for a New or Change of Hazardous Substances......................................... 15 7.2 Hazardous Substance Register - ChemAlert.............................................................. 15 7.3 Safety Data Sheets (SDS) ............................................................................................. 16 7.4 Transportation of Hazardous Substances.................................................................. 16 7.5 Labelling of Hazardous Substances ........................................................................... 16 7.6 Storing Hazardous Substances................................................................................... 16 7.7 Signage .......................................................................................................................... 17 7.8 Storage Tanks and Piping ............................................................................................ 17 7.9 Automated Plant Control Systems.............................................................................. 17
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