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Coors Energy Company Keenesburg Mine <br /> Phase 1 Bond Release Application <br /> Table 2:Phase I Bond Release Reclamation Bond Ad'ustment Calculation <br /> Total Disturbed Acres °of Acres Amount Eligible <br /> SL-10 Reclamation Cost Estimate Task Current Acres at Time Requested Eligible for for Phase I Release <br /> Summary Line Item Hours Amount of Calculation for Release Release (60%of Bond) <br /> A01 Backfill B-Pit 141 15 $ 295,050 1492 1492 100% $ 177,030 <br /> A03 Final Grade Long-Term Spoil Area 2598 $ 4,304 4294 4294 100% $ 2,582 <br /> A04 Final Grade Topsoil Stockpile 1775 $ 3,089 2934 2934 1 100% $ 1,853 <br /> A05 Final Grade Parcels 42 and 43 611 $ 1064 1011 10.11 100% $ 638 <br /> CO2 Rip Internal Roads 649 $ 1,885 480 480 100% $ 1,131 <br /> C05 Re grade Internal Roads 29 $ 494 480 480 100% $ 296 <br /> E01 ]Topsoil B-Pit 4838 $ 114,072 1492 14.92 100% $ 68,443 <br /> E02 Topsoil Lon -Term Spoil Area 77.41 $ 188,532 4294 4294 100% $ 113,119 <br /> E03 Topsoil Parcels 42 and 43 1106 $ 16,136 1011 1011 100% 1 $ 9,682 <br /> E05 Topsoil Internal Roads 2101 $ 30,644 48 48 1000/0 $ 18,396 <br /> FOl Seed Disturbed Areas no PII bond release 70 $ 100,877 131.32 131.32 1000/0 $ 60,526 <br /> FOla Re-Seed Disturbed Areas PII bond release 15 $ 14,851 388 00/0 $ - <br /> GOl Structure Demolition 8 $ 3 673 0% $ <br /> HOI jBorehole Sealing 16 $ 7635 0% $ <br /> I01 lClean Sediment Ponds 138 $ 772 0% $ <br /> IO2 Water Monitoring 30 1 $ 27642 0% $ <br /> JOl Mobilization&Demobilization 15.6 $ 35 916 00/0 $ <br /> Total Direct Costs 1514.22 $ 846,636 $ 453,688 <br /> Overhead and Profit <br /> Liability Insurance 2.02%of Direct Cost 2 02% $ 17102 $ 9,165 <br /> Performance Bond 1 05%of Direct Cost 1 05% $ 8,890 $ 4,764 <br /> Job Superintendent cost/hour time 50%of total task hour 25711 $ 17,841 $ 6,952 <br /> Profit 10%of direct cost 10% $ 84,664 $ 45,369 <br /> Total Overhead&Profit $ 128,496 $ 66,249 <br /> Legal,Engineering,&Project Management <br /> Financial warranty processing (legal/related costs $ 500 $ - <br /> Engineering work and/or contract/bid prep 6% $ 58,508 $ 31,196 <br /> Reclamation mana ement and/or administration 4 5% $ 43 881 $ 23 397 <br /> Totalega,Lngineering,&Project Management <br /> Current Calculated Reclamation Cost $1,078,021 <br /> Total Proposed Bond Reduction $ 574,531 <br /> Current Bond Amount $ 1,201,563 <br /> of Total Bond Proposed for Release 47.80% <br /> New Proposed Bond Amount $ 627,032 <br /> *Information used at this table was taken from Keenesburg Stnp Mine,C-1981-028,SLAG Cost Estimate dated May 26,2020 <br /> SL-11 June 2022 <br />