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Ouray Silver Mines Inc Table L-1 <br /> Technical Revision 11 <br /> Table L-1-Revenue Portal Cost Summary <br /> Time Needed Time Needed <br /> Task# Description Quantity Unit Unit Cost Cost (Months) (Years) <br /> la* Grade all disturbed areas steeper than 3H 1 V 0 CY $ 065 $ - 000 0 <br /> lb Incedental regrading(berms,haul roads,elc) 3,045 CY $ 1.40 $ 4,26300 100 01 <br /> 2 Topsoil of regraded TSF and other disturbed areas to a depth of 6 4,001 CY $ 28.33 $ 113,348 33 300 025 <br /> inches Topsoil to be imported is approximately 4,001 cubic yards <br /> 3 Broadcast seed topsoiled areas with high altitude seed mix from 543 acres $ 1,45596 $ 7,90586 100 008 <br /> reclamation plan <br /> 4 Hydromulch seeded areas at 2000 lbs/acre 543 acres $ 42634 $ 2,31503 1.00 008 <br /> 5 Backfill portals with waste rock and building materials(see $ 5,46336 250 021 <br /> Safeguarding UG Worksheet) <br /> 6 Reinforce gate at Revenue Mine portal $ 3,00000 050 004 <br /> 7 Weed Control $ 1,200 00 020 002 <br /> 8 Structure(See Table L-2) $ 31,500 00 100 008 <br /> 9 Half-Culvert Removal $ 7,84000 0.01 0 001 <br /> 10 Mobilization $ 4,63245 0.01 0 001 <br /> Subtotal Direct Costs $ 181,468 03 <br /> DRMS Overhead 28% $ 50,811 05 <br /> Total Bond Estimate IS 232,279.08 10.21 0.85 <br /> *TSFs will be constructed to final grade. <br /> Page 1 of 1 9/2/2020 <br />