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• TAB 20 <br /> TABLE OF CONTENTS <br /> Page <br /> Backfilling and Grading Procedures 1 <br /> Post Mining Topography 3 <br /> General 3 <br /> Volume Calculations (Pre mining Topographyl 3 <br /> Pre-mining Material Volume 6 <br /> Virgin Overburden Material Volume 6 <br /> Total In-Place Coal Volume 6 <br /> Recoverable Coal Volume 6 <br /> Non-recovered Coal and Parting Material Volume 6 <br /> Pre-mining Overburden Volume 6 <br /> Total Pit Spoil Volume 6 <br /> Volume Calculations (Post Mining Topographyl 7 <br /> Pre- and Post Mine Slopes 7 <br />. Post Mining Drainage Channels 8 <br /> Disturbance Area 12 <br /> References Cited 13 <br />LIST OF FIGURES <br />Figure No. Page <br />20-1 Post Mining Topography Typical Mass Balance 5 <br />LIST OF TABLES <br />Table No Page <br />20-1 Post Mining Landform Mass Balance 4 <br />20-2 Pre- and Post Mining Drainage Channel Summary 10 <br />`I <br />PR-02 i Revised 03/05 <br />