www.valenza-engineering.com 381_R_04_Rev 0 OGNZL_WUG_Phase1_Conceptual_Mitigation ABBREVIATIONS (Cont.) NM Numerical model NZPAMNew Zealand Petroleum and Minerals OGNZLOceanaGold New Zealand ORP Oxidation-Reduction Potential OM Observational Method pH Potential Hydrogen PMDI Progressive modelling and mitigation measures design and implementation strategy RL Relative Level RMA Resource Management Act 1991 RQD Rock quality designation SWL Standing (or static) water level TARP Trigger Action Response Plan TDS Total dissolved solids TSF Tailing storage facility TVZ Taupo Volcanic Zone VWP Vibrating wire piezometer WNP Waihi North Project WRC Waikato Regional Council WRS Waste rock stack WUG Wharekirauponga Underground Mine
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