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• <br />i <br />l <br />~~ <br />TABLE OF CONTENTS <br />sl=.cnoN <br />PAGE <br />1.0 INTRODUCTION ............................................ 1 <br />2.0 SITE CONDInONS ........................................... 2 <br />2.1 SURfACECONDITIONS ................................... 2 <br />2.2 SUBSURFACE CONDITIONS ................................ 3 <br />3.0 DESIGN PARAMETERS ........................................ 5 <br />4.0 DESIGN ASPECTS ..................~......................... 6 <br />4.1 CONSTRUCTION ........................................ B <br />4.1.1 General ......................................... 8 <br />4.1.2 Underdrain System ..................... .......... 7 <br />4.1.3 Haul Roads ....................................... 8 <br />4.1.4 Sediment Pond Access Road .......................... 10 <br />4.1.5 Runoff Control Ditches .............................. 10 <br />4.1.6 Material8alance .................................. 12 <br />4.2 SEDIMENT POND ...................................... 13 <br />4.2.1 Hydrology ....................................... 13 <br />4.2.2 Sediment Yield ................................... 14 <br />4.2.3 Estimated Sediment Pond Volumes ...................... 18 <br />4.2.4 Sediment Pond Wad ................................ 16 <br />4.2.5 Sediment Pond Dewatering ........................... 17 <br />4.2.8 Maintenanu ..................................... 18 <br />4.3 SLOPE STABILITY ...................................... 19 <br />4.3.1 Groundwater Conditions ............................. 19 <br />4.3.2 Material Properties ................................. 19 <br />4.3.3 Results ......................................... 21 <br />5.0 RECLAMATION ............................................ 22 <br />8.0 USE OF THIS REPORT ....................................... 23 <br />7.0 REFERENCES ............................................. 24 <br />96266/t424.RFT CoN Minn WraraG Bank Opgn for tM Sranbom fnrak Mires <br />Oetotw 1996 WESTEC, Ine. <br />