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Assumptions <br />1 Volumes calculated using a GRIDCALC MACRO including a CALCULATE GRID <br />command <br />TOPO_SITEDESIGN_091016 minus TOPO_ORIGINAL_091016, which produces <br />positive values for fill and negative values for cut. <br />2 75 percent of material used in site grading is spoil. <br />3 20% swell <br />4 1 foot of topsoil salvaged. <br />TOPSOIL VOLUME CHECK <br />Area (square feet) 3,302,472 75.8 acres <br />Thickness (ft) 1.0 <br />Volume (cy) 122,314 Compare to 140,574 in design stockpile <br />Assumptions <br />1 Disturbance area boundary assumed to be MASK VOLUME layer. <br />2 No swell <br />FINAL RECLAMATION <br />Excess <br />Material from <br />Site Reclamation Design <br />Fill Cut Balance Construction Balance <br />Vulcan <br />GRIDCALC <br />outputs (kcf) 3,504 (4) <br />Cubic yards 129,789 (164) 129,625 129,926 301 <br />Assumptions <br /> 1 Volumes calculated using a GRIDCALC MACRO including a CALCULATE GRID <br /> command <br /> TOPO_PMT_091016 minus TOPO_ORIGIN AL_091016, which produces positive <br /> values for fill and negative values for cut. <br /> 2 The PMT design is based on adding the excess (swelled) material from the site <br /> construction to the original surface. <br /> 3 All material is spoil. <br /> 4 No swell <br /> 5 1 foot of topsoil replaced. <br /> Fill Cut <br />Polygon Grid Reserve TIN Grid Reserve TIN <br />SOUTH 1291 771 386,697 392,804 <br />PORTAL 679352 675,790 23,220 20,225 <br />NORTH 38525 36,884 235,390 239,613 <br />NORTH2 81019 82,716 7,423 4,826 <br />TOPSOIL 0 140,574 140,574 <br /> 800,187 796,162 100.5% 793,304 798,042 <br />Whole 800,259 796,162 100.5% 653,089 657 <br />99.4 <br />99.3 <br />13