Supporting Technical Assessments

0 500 1,000 1,500 2,000 2,500 3,000 0 30 60 90 120 150 180 Flow Rate (m3/s) Time (mins) Von Thun and Gillete (1990) Xu and Zhang (2009) OCEANA GOLD (NZ) LTD - WAIHI Storage 3 Tailings Storage Facility, RL155, Dam Breach Breach Outflow Hydrographs for Rainy Day Breach Scenario Ref. No: 9216 Date: Nov 2021 Drawn: YW Engineering Geology Ltd Unit 7C, 331 Rosedale Rd, PO Box 301054, Albany Auckland , NZ Ph (09) 4862546 Fax (09) 4862556 Figure 5

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