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TR 94-24 Amoco Pipeline Undermining Bond Calculation <br />• Removal of stockpond- <br />Assume 125'x 125' x 3' average depth of cut = 46,875 cubic feet <br />of material to be re-worked to backfill stockpond <br />46,875 cubic feet / 27 cubic feet per cubic yard = 1,736 c. yards <br />Cost for D8N at $98.79 per hour, 660 CY capacity per hour <br />1,736 CY / 660 CY per Hour = 2.6 hours SAY 3 hours <br />3 hours x $98.79 per hour = $ 296.37 SAY $300.00 <br />Regrading of diversions and stockpond - <br />Assume grading of area 40' x 2500' <br />(diversions on both sides) = 100,000 square feet = 2.3 acres <br />Assume grading of area 150' x 150' <br />(top area of pond plus blending) = 22,500 square feet = 0.5 acres <br />Cost for 14 G grader at $83.31 per hour, 1.5 acres per hour <br />2.8 acres / 1.5 acres per hour = 1.9 hours SAY 2 hours <br />• 2 hours x $83.31 per hour = $166.62 SAY $175.00 <br />Re-seeding of areas - <br />Assume 2.8 acres, worst case Rangeiand/Wildlife seed mix <br />Total reseeding cost $367.31 per acre SAY $370.00 <br />2.8 acres x $370.00 per acre = $1,036.00 SAY $ 1,050.00 <br />Subtotal $ 1,525.00 <br />ADD 18°,6 Admin. $ 274.50 <br />TOTAL $ 1,799.50 <br />SAY $ 1,800.00 <br />*• Note: All costs based upon figures and equipment from Permit Renewal #2 <br />Reclamation Cost Estimate as received from DMG. <br />• TR 94-24 F~c. 25-32 7111 /94 <br />