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permitting process. Additionally this and related issues should have been addressed <br />much earlier in the PAP review process. <br />Additional Supporting Information for Response to Comment 64 <br />SAGE CREEK MINE <br />MATERIAL BALANCE <br />NOVEMBER 5, 2009 SITE DESIGN <br />The November 5, 2009 site design required 778,799 bank cubic yards (bcy) of <br />cut, which resulted in 910,607 loose cubic yards (Icy) of fill, including 140,574 Icy of <br />topsoil in stockpile. The cut material swelled 16.9% resulting in 131,809 Icy of excess <br />material above the original surface, which was included in the postmining topography <br />(PMT) surface. Grading to the PMT surface required 798,042 Icy of cut and fill, <br />including the 140,574 Icy of topsoil removed from stockpile. 112,565 Icy of the original <br />fill used to grade the site did not have to be rehandled during reclamation grading. <br />Sage Creek Mine Postmining Topography Design Volume Summary <br /> 11-5-09 SITE CONSTRUCTION DESIGN <br /> Fill Cut Balance Swell <br />North 356,985 82,838 <br />South 392,821 771 <br />Portal 20,228 695,189 <br />Topsoil Stockpile 140,574 <br /> 910,607 778,799 131,809 116.9% <br />Assumptions <br />1 Volumes calculated using MODEL=>TRIANGLE SURFACE=>POLYGON <br />VOLUME <br />Original Surface: TOPO_ORIGINAL _091016.00t <br />Final Surface: TOPO SITEDESIGN 091016v2.00t <br />2 75 percent of material used in site grading is spoil. <br />3 20% swell <br />4 1 foot of topsoil salvaged. <br /> Excess <br /> Material from <br /> Site <br /> Fill Cut Construction <br />Vulcan GRIDCALC <br />outputs (kcf) 20,923 (21,211) <br />Cubic yards 774,938 (785,586) <br />Topsoil stockpile <br />(cy) 140,574 <br /> 915,512 (785,586) 129,926 116.5% <br />12