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COLORADO LEGACY LAND $CHWARTZWALDER MINE RWARTZWALDER MINE RECLAMATION COSTS 7s, Description Notes 60 RO System Operation year 1 to 10 Year 1 to 5:RO system runs half-time(at $139,636/yr)and on standby half-time(at $15,000/yr);see attached detail Year 6 to 10:Continue to run as in Year 1 to $1,546,360 RO system Operation year 11 to 20 5 WebMaster Remote Monitoring System Included in cost of RO systems $22,200 Mine Pool Sampling Years 1 to 10 $22,200 Mine Pool Sampling Years 11 to 20 $4,002,120 Subtotal(Direct Costs) Mine Dewatering&InSitu Treatment(DRMS Indirect Costsl $80,843 Liability Insurance 2.02%of Direct Costs $42,022 Performance Bond 1.05%of Direct Costs Site personnel covered in RO system Job superintendent operation $400,212 Profit 10%of Direct Costs $523,077 Subtotal(Indirect Costs) Mine Dewatering&InSitu Treatment(Engineering/Management) Engineering Word&/or Contract/Bid $192,321 Prep 4.25%of Direct and Indirect Costs $226,260 Reclamation management&/or Admin. 5%of Direct and Indirect Costs $418,581 Subtotal(Engineering/Management) AM-04 $1,842,025 Aluvial Fill(Total Cost) Alluvial Fill(Direct Costs) Demobe-all heavy equipment already on $74,000 Mobilization site Kessler Quote per TR-23,includes old water $246,400 Demo and Debris Removal treatment building and other site structures. Kessler Quote per TR-23,excavate,haul and place on waste rock piles,1 construction $287,325 Excavate,Haul and Place season. $10,000 Lab Analysis Soils 50 verification samples $15,000 Lab Analysis Water 100 samples during excavation. $48,000 Modify/Demo sumps Pipes,pumps,electrical modifications. Possible 3 new/relocated monitor wells at $24,000 Modify monitor wells $8,000 each Inert fill to come from site,no credit taken $138,600 Purchase Inert Fill for discount Inert fill from site-haul charge reduced to $214,500 Haul and Place Fill essentially zero. $50,750 Purchase Top Soil Purchase 3,500 cy of top soil $112,000 Haul and Place Top Soil Haul and place 3,500 cy of top soil $28,000 Revegetate Purchase and distribute 3.5 acres Kessler quote per TR-23,includes $133,363 Concrete V-ditch Storm Water Drain construction and materials NOVEMBER 2020 50 AMENDMENT 5