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Homestake Mining Company June 17,2019 <br /> Regular(112d)Operation Reclamation Permit Application Package <br /> Project Name: Pitch Mine Reclamation Project-Reclamation Plan <br /> Date of Submittal: March 1,2019 <br /> File Name: SRCE Version_1_4_1_016c 2019-06-06 amh User 3 Updates.xlsm <br /> Model Version:Version 1.4.1 <br /> Cost Data:User Data <br /> Cost Data File:SRCE_Cost_data-USR_1_12_2019-05-14.xlsm <br /> Cost Estimate Type:Surety Cost Basis:Northern Nevada <br /> Exploration-Cost Summary <br /> Labor <br /> gmpment atenas oL's <br /> Hole Ahandonment Casts So SO SO SC <br /> Trench Backfilling Costs SO SO �C <br /> Subtotal Earthworks $0 $0 So $0 <br /> Trench Revegetation Costs $0 SO $0 $C <br /> TOTALS $o 0 0 0 <br /> Exploration Trenches-Calculations <br /> Exploration Trench Volume Calculation Dozing&Ripping/Scarifying Calculations <br /> Dozing:Dozing distance=112 trench length or 400 ft(max push)whichever is less <br /> Assumes flat push(grade correction factor=1) <br /> � b <br /> Revegetation: 10 ft added to trench width to account for revegetation under spoil pile <br /> •„i ::nll r,:b <br /> d <br /> Trench Volume=Trench Length.Cross Sectional Area V <br /> a <br /> Figure 1-Trench Volume <br /> Exploration Trenches-Backfill/Regrading Costs <br /> Productivity=Dozer Productivity x Grade Correction x Density Correction It Operator(0.75)x Material It Visibility x Job Efficiency(0.5) <br /> Trench Dozer Corrected Total Trench Backfill Trench 11-1ml Total <br /> �e.c ri pti on Backfill Push Equipment Dozing Density Ba,kahm. Hourly Dozer Labor Equipment Trench Backfill <br /> .rcounc•tl Volume Distance Productivity Material Correction Flee[ Productivily Hours Cost Cost Cost <br /> LCY I13CY.30%I It yd3thr yd3lhr hr $ $ $ <br /> 0 0 0 <br /> Exploration Trenches-Revegetation Costs <br /> tate of veq elanoi evyetonoi <br /> IJc�cri pti on Su riace .....-T- <br /> Labor Equipment Material Revege�aho <br /> Ireyuned'i Are Co' Coy Copt Copt <br /> SO 0 0 0 <br /> r'aae 2 of: HOMESTAKE MINING COMPANY <br /> 39 0 1C4 <br />