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All building will be removed at the end of mine life. Most of these will be shipping containers, <br /> and therefore will only need to be hauled off site. <br /> 6. Worst Case Reclamation Costs <br /> The worst case reclamation scenario will be early in the mine life when the sediment pond has <br /> been constructed, and the topsoil has been stripped from Stage 1 of the waste rock landform. <br /> Table D-2 shows a breakdown of each reclamation cost for this scenario. The list below <br /> discusses the reclamation steps in detail: <br /> • Grading sediment pond and pad to final condition(loader haul of 200 feet): 2000 CY @ <br /> $1.50/CY=$3000 <br /> • Spreading 12 inches of topsoil over Stage 1,the graded sediment pond area, and the <br /> Usable Pad Area(loader haul of 200 feet). 2.36 ac x 12 inches/27 CF/CY=3,807 CY. <br /> 3,807 CY @ $1.50/CY=$5,711 <br /> • Backfilling portal (8' x 10')40 feet deep via haul truck(1600 foot haul). 119 CY @ <br /> $5.00/CY=$593 <br /> • Backfilling secondary escapeway portal (6' x 8' portal)40 feet deep via haul truck(1800 <br /> foot haul). 71 CY @$5.00/CY= $355 <br /> • Install steel doors on both backfilled portals. $2000 <br /> • Seed topsoiled areas. 2.36 ac @$300/ac=$708 <br /> • Disk topsoiled area. 2.36 ac @$150/ac=$354 <br /> • Mulch all seeded area. 2.36 ac @ $500/ac=$1180 <br /> • Haul all sea cans off site. Three sea cans @$1000 per sea can=$3000 <br /> Including a 28%DRMS cost inflator,the total worst case reclamation cost is $21,633 <br /> Detroit City Mine February 2017 D-3 <br />