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Closure Cost Estimate <br /> Waste Rock Dumps <br /> Project Name: TR114 Silo-Reclamation Plan <br /> Date of Submittal: 4/9/2019 <br /> File Name: TR114 Silo SRCE TVO 04092019.xism <br /> Model Version:Version 1.4.1 <br /> Cost Data:User Data <br /> Cost Data File:SRCE_CCV_bonding_cost_data_ffle.xism <br /> Cost Estimate Type:Surety Cost Basis:Northern Nevada Bonding <br /> Waste Rock Dumps-Cost Summary <br /> Labor I Equipment Materials Totals <br /> Grading Costs $124 $498 N/A $622 <br /> Cover Placement Cost $0 $0 N/A $0 <br /> Topsoil Placement Cost $0 $0 N/A $0 <br /> Roping/Scarifying Cost so N/A $0 <br /> Subtotal Earthworks $124 $498 $0 $622 <br /> Revegetation Cost $0 $0 SO SO <br /> TOTALS $124 $498 $0 E622 <br /> Waste Rock Dumps-Calculations <br /> Regrading Volume Calculation Final Slope Area and Footprint Area Calculations <br /> S.(Tnp Sl p) <br /> b <br /> � C2 p2 - � Final slope length=c,+c+ <br /> Cut Final slope area=Final slope length x Mid-bench Length cultaz Final lift height(h_)=(c,+ci)x sin(Final slope) <br /> 'Q7 Final slope width(d)=(c,+cJ x cos(Final elope) <br /> h(Lift Height) Final slope footprint=Final slope width x Mid-bench Length tru(lrYrl Lla lblglg <br /> Ga-le-Fa OlYsr Ossit Final flat area=Final footprint-Final slope footprint Cl*-M .wpirat <br /> MMia•a <br /> - apaasasd � <br /> Cr ,- fill <br /> 8, Su lllnpradW rope) r—.— .�,,- Fill � � � � .. �_. <br /> Cr <br /> s a aeon g S,(Firr <br /> ground-w) • b i d <br /> � Fleas t-Ragraca vomma camvlation Figure 3-Final Slope Area and Footprint Area Calculation <br /> Regrading Push Distance Calculation Ripping/Scarifying Calculations <br /> dozing distance:based on 2/3 final cut slope+213 final fill slope(minimum=50 ft) Minimum 1 hr npping/scarifying time per dump <br /> Tap Slope Slopes: <br /> Number of passes=Final slope length+Grader width <br /> _ Travel distance=Number of passes x Mid-bench length <br /> Total hours=(Travel distance+Grader productivity)+(Number of passes x Grader maneuver time) <br /> Cut <br /> Minimum 1 hr <br /> Dozing distance 3(Cl+c,) Dobro Flat Areas: <br /> distarwa c' Flat area width=Final flat area+Average long dimensions <br /> Number of passes=Flat area width-Grader width <br /> Travel distance=Number of passes x Average long dimensions <br /> c.—r"pi-'F°'^' Total hours=(Travel distance+Grader productivity)+(Number of passes x Grader maneuver time) <br /> optirni:w <br /> Revegetation:Minimum 1 acre revegetation crew time per area <br /> c / u,gn,—rsps <br /> Fill <br /> ongdr rop. Fin� � S <br /> �- Figure 2-Dozing Distance Calculation <br /> 4/15/2019 <br /> Page 3 of 6 waste Rock Dumps <br />