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DocuSign Envelope ID: EBE28081-13782-41342-13AD13-D8C9313687131B <br />Assumptions <br />1 Client will Self Perform Earthwork. <br />2 Client will be using a Volvo EC350E Excavator - Estimate for 600 yards of dirt per day. <br />3 Two Trucks are available with 30 yard Haul beds each. <br />Excavation Cost Assumptions: <br />1 Two Haul Trucks (30CY Capacity) cost wet @ $150.00/Hr/ea. <br />2 One Volvo EC350E Excavator (1.5-2.5CY) cost wet @ $85.00/Hr. <br />3 One Water Truck on haul road 2hrs/day @ $80.00/hr w/driver. <br />4 Three operators at $70.00/Hr/ea. (Fully loaded rate cost) <br />5 10 Hr Shift per day, five days per week (no Overtime). <br />6 Average production @ 600CY per Shift. <br />7 Haul Trucks will cycle approx. 1.5 cycles per hour. <br />Thus: <br />Labor & Equipment Cost / Shift = $3,000 (Trucks) + $850 (Excavator) + $2,100 (Labor) + $160 <br />(Water) _ $6,110 / Shift <br />Cost / CY for Excavation = $6,110 / 600 CY =—$10.18/CY, for estimating at this point, say $11.00/ <br />CY. <br />References <br />1 Microbial Community Structure and Functions in Ethanol -Fed Sulfate Removal <br />Bioreactors for Treatment of Mine Water <br />Malin Bomberg, Jarno Makinen, Marja Salo and Mona Arnold <br />VTT Technical Research Centre of Finland, P.O. Box 1000, FIN-02044 Espoo, Finland; <br />jarno.makinen@vtt.fi (J.M.);marja.salo@vtt.fi (M.S.); mona.arnold@vtt.fi (M.A.) <br />* Correspondence: malin.bomberg@vtt.fi; Tel.: +358-40-186-3869 <br />Received: 9 June 2017; Accepted: 19 September 2017; Published: 20 September 2017 <br />