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Rifle Gravel Pit #1 January 2020 <br /> 13.0 Exhibit L — Reclamation Cos:_.. <br /> The worst-case reclamation scenario at the Rifle Gravel Pit will be when the greatest backfill <br /> is required and will occur sometime within the mining process of the north and south pods. <br /> • Backfilling/regrading approximately 42,592 Yds2 (8.8 acres) of mining slopes at a <br /> cost of $1.50/CY = $63,888. <br /> • Replace topsoil on disturbed areas, assuming excavation areas, materials storage, <br /> and topsoil storage areas, 81,699 Yds2 (16.88 acres) at $1.50/CY = $122,548. <br /> • Seeding and erosion control on 16.88 acres @$700/acre = $11,816. <br /> Based on these costs, and a 28% DBMS cost factor, the total bond for the Rifle Gravel Pit <br /> will be $253,762. <br /> Table 7. Reclamation Costs <br /> Activity Description Time (Months) Cost ($) <br /> Backfill 1 $63,888 <br /> Replace Topsoil on all disturbed areas 1 $122,548 <br /> Seed and mulch all top soiled areas 0.5 $11,816 <br /> Sub-Total 2.5 $198,252 <br /> DRMS Costs $55,510 <br /> (28% x direct costs) <br /> Total Bond Amount $253,762 <br /> 45 <br />