SECTION A C006 1500 SCALE 1 : PIT SLOPE FLATTENED FINAL TAILINGS LEVEL. SEE NOTE 1. PRE-MINING SURFACE GLADSTONE PIT SHELL TOP SOIL REPLACED AND CONTOURED. REVEGETATION WITH LOCAL SPECIES. 1V:50H TAILINGS SURFACE NSL NSL 1 - TAILINGS SPILLWAY CHANNEL CUT IN NATURAL GROUND TO RESTORE CATCHMENT TO WETLAND. 3V:100H 1V:50H DETAIL 1 - 50 SCALE 1 : GROWTH MEDIUM NAF WASTE ROCK TAILINGS TOPSOIL 1.0m MIN LEVEL VARIES 0.1m INITIAL PENETRATION OF WASTE INTO TAILINGS TO FORM TRAFFICABLE SURFACE RE-VEGITATE WITH NATIVE GRASSES 0.6m THICK RIP-RAP (D50 = 300mm). NOTE 3. RL VARIES (1104.0m AT INVERT) 3 1 1.0 10 CLOSURE SPILLWAY CHANNEL TYPICAL SECTION SCALE 1:100 GHD STANDARD A1 ATTRIBUTE BLOCK CAD File No.: GHD_G_0045_T Updated: 08-07-03 Version: 1.1 This Drawing must not be used for Construction unless signed as Approved GHD STANDARD A1 SHEET CAD File No.: GHD_G_0045 Updated: 08-07-03 Version: 1.1 Date Check Drafting Plot Date: Cad File No: Date Drawn Revision No A3 Rev: Drawing No: Original Size Title Project Client Check Designer Drawn Scale Design Conditions of Use. This document may only be used by GHD's client (and any other person who GHD has agreed can use this document) for the purpose for which it was prepared and must not be used by any other person or for any other purpose. DO NOT SCALE Note: * indicates signatures on original issue of drawing or last revision of drawing 2 Salamanca Square Hobart TAS 7000 Australia GPO Box 667 Hobart TAS 7001 T 61 3 6210 0600 F 61 3 6210 0601 E [email protected] W www.ghd.com 17 June 2022 - 3:07 PM G:\51\12537997\CADD\Drawings\12537997-C007.dwg Plotted By: Wesley Herweynen (Project Director) Approved Job Manager Project Director PRELIMINARY OCEANA GOLD NEW ZEALAND LTD GLADSTONE PIT TSF PRE-FEASIBILITY STUDY CLOSURE - SECTION AND DETAILS 12537997-C007 B V. JENKINS W. HERWEYNEN AS SHOWN A ISSUED FOR CLIENT COMMENT VJ WH RL 16.04.21 B ISSUED FOR CONSENTING VJ WH RL 17.06.22 0 1.5m 0.5 1.0 SCALE 1:50 AT ORIGINAL SIZE 0 45m 15 30 SCALE 1:1500 AT ORIGINAL SIZE NOTES: 1. INSTALL SLOPE MONITORING INSTRUMENTATION FOR POST CLOSURE PERFORMANCE MONITORING. 2. CAP AND RE-VEGETATE PIT WALLS, AS REQUIRED. 3. PLACE RIP-RAP FOR EROSION PROTECTION WHERE SPILLWAY CUT THROUGH HIGHLY WEATHERED ROCK. SCALE 1:100 AT ORIGINAL SIZE 0 3m 1 2
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