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Estimated Reclamation Costs :Table Mountain Quarry (January 2003) <br />GRAND TOTALS <br />Backfilling $215,825.20 Ttl area 45.5 acres (in disturbance) <br />Grading $0.00 7.0 acres (other areas) <br />Topsoiling $38,975.05 <br />Revegetation $9,452.49 CosUac $5,035.55 <br />GRAND TOTAL = $264,252.74 (cosUacre for actually reclaimed land) <br />Calculations <br />Worst case assumption: 8223' of highwall with 1:1 slope and 27.5' mean wall height <br />Total cross-sectional area of 3.5:1 backfilled highwall = 1,323 sq ft <br />Cross-sectional area of 1:1 portion of highwall not needing backfill = 378 sq ft <br />Cross-sectional area of 3.5:1 portion of highwall needing backfill = 945 sq ft <br />Length of backwall needing backfill (worst case) = 8,223 feet <br />Total volume of backfill needed to achieve 3:1 slope = 7,769,707 cu ft <br /> 287,767 cu yds <br />Fill volume = 287,767 cu yds to bring 1:1 to 3.5:1 slope <br />Backfill cosUyd = $0.75 fill is near location to be filled; minimal to no haulage <br />(cost is low because cost of topsoili ng is included in total) <br />Backfill Cost = $215,825.20 <br />TOTAL BACKFILL COSTS = $215,825.20 <br />Notes: this is based on assumption that no backfilling is done in Area A or B. <br />Slope average of 3.5:1:3:1 on E and N slopes; 4:1 on S and W slopes. <br />Also see Topsoiling of Highwalls below. <br />~iYQ[l[77g <br />No grading is required on highwalls as backfilling of highwalls will result in grading of slope face <br />No grading is required on quarry Floor because topsoiling will create final grade <br />Grading cost: $0.00 <br />