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Mazch 2000 -ii- 993-2099.150 <br />4.8 Low Volume Solution Collection System ............................................... 36 <br />4.8.1 Phase I and Phase II LVSCS ....................................................... 36 <br />4.8.2 Phase IV LVSCS ..................................................................... 36 <br />4.9 High Volume Solution Collection System ............................................... 36 <br />4.10 Appurtenant Structures .................................................................... 38 <br />4.11 Reclamation/Closure .......................................................................39 <br />4.12 Technical Specifications ................................................................... 39 <br />5.0 GEOTECHNICAL ANALYSIS ................................................................ 40 <br />5.1 VLF Stability Analysis ...................................................................... 40 <br />5.1.1 Methodology ..........................................................................40 <br />5.1.2 Input Parameters ..................................................................... 41 <br />5.1.2.1 Conceptual Stratigraphic Model ........................................... 41 <br />5.1.2.2 Geotechnical Material Design Parameters ............................... 42 <br />5.1.3 Stability Results ...................................................................... 46 <br />5.2 Settlement ..................................................................................... 48 <br />5.2.1 PSSA Foundation .................................................................... 48 <br />5.2.2 Pregnant Solution Storage Area on Ore Slope .................................. 48 <br />6.0 SURFACE WATER CONTROL ................................................. .............. 50 <br />• 6.1 Site Surface Hydrology ....................................................... .............. 50 <br />6.2 Soil Conservation Service (SCS) Runoff Curve Numbers .............. .............. 51 <br />6.3 Diversion Analysis and Design .............................................. .............. 53 <br />6.4 Sediment Control .............................................................. .............. 54 <br />7.0 WATER BALANCE ............................................................... .............. 55 <br />7.1 Water Balance Model ......................................................... .............. 55 <br />7.2 System Analysis ................................................................ .............. 56 <br /> 7.2.1 System Inflow Evaluation ............................................ .............. 56 <br /> 7.2.2 System Outflow Evaluation .......................................... .............. 57 <br /> 7.2.3 Water Management .................................................... .............. 59 <br />7.3 Discussion of Results for Phase IV ......................................... .............. 59 <br /> 7.3.1 Phase I PSSA ........................................................... .............. 59 <br /> 7.3.2 Phase II PSSA .......................................................... .............. 60 <br /> 7.3.3 Phase IV PSSA ......................................................... .............. 61 <br />8.0 USE OF REPORT ................................................................................ 63 <br />9.0 REFERENCES .................................................................................... 64 <br />L_ J <br />I:\94~099~FINAL REPORT3099MAINI.DOC Golder Associates <br />