Waihi Surface Explosives Principal Management Plan Approved by: General Manager Approval Date: 15/10/2017 Next Review: Archived OceanaGold Waihi Doc ID: WAI-350-PLN-003 Page 23 of 31 Mine Operator In respect of a mining operation carried out under a permit granted under the Crown Minerals Act 1991, the person appointed by the permit operator to manage and control the mining operation Mine Worker A person who works in a mining operation, either as an employee or as a self-employed person or contractor Misfire An occurrence where: - Testing before firing a shot reveals broken continuity which cannot be rectified; or - Any shot, or whole or part of a round, fails to explode when an attempt is made to fire it. OceanaGold Oceana Gold (New Zealand) Limited PHMP Principal Hazard Management Plan Principal Hazard Any hazard that may have the potential to cause multiple fatalities Risk The chance of something happening that will have an impact upon objectives. Risk is measured in terms of a combination of the consequences of an event and their likelihood. Risk may have a positive or negative impact. Risk Management The culture, processes and structures that are directed towards realising potential opportunities whilst managing adverse effects Site Risk Register is a register of all existing principal and major hazards and mitigating controls at the Waihi Operation Shot A charge of explosive (in a cartridge) placed in a shot hole in coal or other rock (or stone) for the purpose of breaking the coal or rock (or Stone). Shotfirer A person appointed by Mine Management to conduct shotfiring SSE Site Senior Executive Stemming Material Inert coarse material, such as crushed gravel about 1/10th hole diameter, loaded into the blast hole to confine the gaseous energy and prevent it from venting into the atmosphere. TARPs Trigger Action Response Plans Windrow A continuous mound of loose material, of appropriate height, placed at the toe or crest of a slope as a barricade to falling objects or to prevent personnel/mine equipment from falling inadvertently down pit walls. Can also be referred to as a bund.
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