Zone A 0.75m thick 1080 1090 1100 1110 1120 1130 1140 1150 1160 1170 1180 1190 1200 RL Property Boundary Perimeter Road Perimeter Drain Haul route access RL113 RL123 NRS Fill Estimated maximum closure profile Existing Ground Surface Perimeter Road Perimeter Drain Northern Uphill Diversion Drain REHABILITATION DETAILS NTS Zone H Zone G Zone F A - 1.5 min 1.5 min 0.5 min Zone G Zone F Zone H See Detail A NORTHERN ROCK STACK CLOSURE TYPICAL SECTION 1 16 715 scale 1:2500 17 782 Collection sumps for subsoil and leachate drains Rehabilitate final surface Zone F 1 1.5 16 782 Estimated max. crest RL148 12.5 1 Zone E Zone D3 Zone D2 OCEANA GOLD NZ LIMITED JOB NUMBER: ORIGINAL SCALE: A3 SIZE: DRAWING No. DATE TITLE BY PROJECT APPR. DESIGNED CHECKED DRAWN DESIGN APPR. APPROV. CHECKED REVISION DATE BY No. C COPYRIGHT written approval from in any way without prior and may not be copied OCEANA GOLD NZ LIMITED the property of This drawing remains REV. No. Preliminary Issue Tender Issue Construction Issue Signed: Signed: Signed: Date: Date: Date: PROJECT: AREA: DEVELOPMENT SITE Sections NRS Closure Tails / Waste Rock 080 WAI-983-080-DWG-CI-0781 B 9018 as shown Northern Rock Stack A JL 19-07-21 Preliminary Issue WNP ET TM Ground profile Existing ground profile Original ground profile Survey before fill placed in existing Northern Stockpile MC ET ET TM Estimated maximum closure profile Leachate drains Subsoil drains 19-07-21 19-07-21 19-07-21 19-07-21 19-07-21 Notes 1. Positions and levels of subsoil and leachate drains are indicative only. B ET 12-10-21 Added Zone D3, D2, E TM TM
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