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<br />COLOWYO COAL COMPANY <br />INITIAL WEST PIT BOXCUT TOPSOIL STRIPPING <br />INITIAL STRIPPING AREA DRAINAGE ANALYSIS <br />(AS BUILT AS OF JULY 1B, 7994) <br />Orslnsspa Orelnega Area Orelnege Ares Total Aere-Feet <br />Structure Topsoil Strip Areas Topsoil Pilea Drslnege Area Required <br />Acrs-Feet Exeees <br />Actual Acre-Feet <br />Ml <br />Weet Pit Pond • 73.8 8.9 83.7 7.7 12.8 b.1 <br />A2 <br />Inllld Boxcut 169 B 13.4 163.2 17.0 60.3 33.3 <br />/3 <br />In-Pit Control Structure 38.9 7.1 46.0 4.3 5.7 1.4 <br />Total Inltld <br />Stripping 282.4 30.4 312.8 29.0 68.8 39.8. <br />• Note : Weet Pit Pond Expenslon complete on June 2B, 1994 <br />Done by: DSC,SRH,JPG <br />July 21, 1994 <br />