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• <br />u <br />VOLUMEIV <br />TABLE OF CONTENTS <br />SECTION PAGE <br />1.0 INTRODUCTION ........................................................................................... 1 <br />2.0 SITE CONDITIONS ....................................................................................... 2 <br />2.1 SURFACE CONDITIONS ...................................................................... 2 <br />2.2 SUBUSRFACE CONDITIONS ............................................................... 3 <br />3.0 DESIGN PARAMETERS ............................................................................... 5 <br />4.0 DESIGN ASPECTS ....................................................................................... 6 <br />4.1 CONSTRUCTION ..................................................................................6 <br />4.1.1 General ......................................................................................6 <br />4.1.2 Underdrain System .................................................................... 7 <br />4.1.3 Haul Roads ................................................................................ 8 <br />4.1.4 Runoff Control Ditches ............................................................ 10 <br />4.1.5 Material Balance/Material Stockpile ......................................... 12 <br />4.2 SEDIMENT POND ........................................................ ................13-13i* <br />4.2.1 Hydrology ......................................................... ......:................14 <br />4.2.2 Sedimentology .................................................. .......................15 <br />4.2.3 Estimated Sediment Pond Volumes ................. ....................... 17 <br />4.2.4 Sediment Pond Embankment ........................... ....................... 17 <br />4.2.5 Sediment Pond Dewatering .............................. ....................... 18 <br />4.2.6 Maintenance ..................................................... .......................19 <br />4.3 SLOPE STABILITY .............................................................................. 20 <br />4.3.1 Groundwater Conditions .......................................................... 20 <br />4.3.2 Material Properties .................................................................. 20 <br />4.3.3 Sediment Pond Slope Stability ................................................ 22 <br />4.3.4 Results .................................................................................... 22 <br /> <br />5.0 RECLAMATION .......................................................................................... 24 <br />6.0 USE OF THIS REPORT .............................................................................. 25 <br />7.0 REFERENCES ............................................................................................26 <br />Volume. The PHC for Pond D is located in Volume Ill, pages Exh. 8-17 through 19, the SED~ <br />output is now located in Volume lll, pages 207 & 208. The upland runoff areas are shown on <br />Map 20 in Volume ll. <br />TR-43 <br />/~pPRovED <br />ry~u~a6 <br />08/06 <br />