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1 <br />' CASH MINE /GOLD HILL 11IILL <br />' TAILINGS POND EXPANSION AND SITE DEVELOPMENT <br />DESIGN REPORT <br />' TABLE OF CONTENTS <br /> Page <br />' LIST OF TABLES ......................................................... .......... ii <br /> LIST OF FIGURES ........................................................ .......... tt <br /> LIST OF DRAWINGS ...................................................... .......... ii <br />' LIST OF APPENDICES .................................................... .......... ii <br /> LIST OF APPENDIX TABLES .............................................. .......... ii <br />' LIST <br />1.0 OF ABBREVIATIONS AND ACRONYMS ::::::::::::. . :::.:.:..:::::.:.. <br />INTRODUCTION .. :.::::::: • iii <br />~ 1 <br /> 1.1 Purpose and Scope of the Design Report .......................... .......... 1 <br /> 1.2 Limi[ations ........ . 2 <br />' 2.0 .......................................... <br />SITE CHARACTERIZATION . ......... <br />3 <br /> ............ ............................. <br />2.1 Location .......... .......... <br />3 <br /> 2.2 Topography ................................................. .......... 3 <br />' 2.3 Climate and HydrologY . 3 <br /> ......................................... <br />2.4 Geology .. ......... <br />4 <br /> 2.5 Seismiciry .................................................. .......... 4 <br /> . <br />. <br />.. <br />2.6 Focused Site Im~estigation and Geotechnical Laboratory Testing ..... <br />. <br />. 4 <br />' 3.0 : <br />: <br />: <br />PROPOSED SITE DEVELOPMENT ........................ : <br />:: <br />6 <br /> 3.1 Existing Tailings Impoundment ................................. .......... 6 <br />' 3.2 Proposed Embankment Raise ..:::...:.........:.:.:......:..... <br />3.2.1 Design Criteria .:..:.:.:. 7 <br />7 <br /> 3.2.2 Construction .......................................... .......... 8 <br /> 3.2.3 Stability Analyses .......... . 9 <br />' 3.2.3.1 Method of Analysis .. <br />............................ ......... <br />9 <br /> 3.2.3.2 Material Properties .............................. ......... 10 <br /> 3.2.3.3 Stability Analysis Results ......................... ......... ]0 <br />' ' 4.0 GEOTECHNICAL TESTING AND ANALYSIS . <br />.. <br />. <br />. . 12 <br />. <br /> 4.1 Existing Foundation Conditions <br />:: <br />: <br />::::::::::::::::::: <br />:: 12 <br />:: <br />::::: <br /> 4.2 Construction Materials ........................................ ......... 13 <br /> S.0 STORMWATER RUNOFF CONTAINMENT ............................... ......... 14 <br />' 6.0 QUALITY CONTROL AND ~4ANAGEMENT .............................. ......... 15 <br /> 6.1 Quality Control During Construction ............................. ......... 15 <br />' <br />7 <br />0 S.2 Management Plan <br />REFERENCES . 15 <br />16 <br /> . ............................................. <br />......... ........ <br /> <br /> <br /> <br /> <br />