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Rifle Gravel Pit #1 April 2022 13.0 Exhibit L — Reclamation Costs Reclamation details are provided in Figure 14, Exhibit E1 and Figure 15, Exhibit E2. The pond will not be backfilled, but will remain as open water. A 6-foot wide 5:1 wetland slope will be constructed on the inner perimeter of the pond, transitioning to 3:1 slopes to full depth. Reclamation costs are also associated with reclamation activities on the perimeter berm, the 25-foot wide upland buffer on the outside of the perimeter berm, and the reclamation of the Operations Area. Volumes, areas, and seeding mixes are provided in Figure 15, Exhibit E2. • Backfill of the pond to create the 0.79 acres of wetland reclamation area, utilizing approximately 637 CY of salvaged fill and topsoil, at a cost of$3/CY = $1,911 total. • Seeding and Planting of the 0.79 acres of wetland reclamation area with the Wetland Seeding and Planting Mix, at a cost of$10,000/ac = $7,900 total. • Construction of perimeter berms on 3.90 acres, utilizing approximately 12,163 CY of salvaged fill and 2,390 CY of salvaged topsoil, at a cost of$3/CY = $36,489 total. • Replace 2,390 CY of salvaged topsoil on the perimeter berms at a cost of$3/CY = $7,170 total. • Seeding and erosion control on the 3.90 acres of perimeter berms, using the Upland Seeding and Planting Mix, at a cost of$1000/ac= $3,900 total. • Removal of gravel surface and regrading of Operations Area, placement of topsoil, and seeding with Upland Seeding and Planting Mix on 1.93 acres, at a cost of $5,000/ac = $9,650 total. Based on these costs, and a 28% DRMS cost factor, the total bond for the Rifle Gravel Pit will be $85,785.60 Table 7. Reclamation Costs Activity Description Time Months Cost $ Backfill of pond to create wetland fringe 1 1,911 Seeding & Planting of wetland fringe 1 7,900 Construction of perimeter berms .25 36,489 Surfacing of perimeter berms with topsoil 1 7,170 Seeding of berms with upland seed mix 1 3,900 Surface prep and seeding of Operations Area .1 9,650 Sub-Total .75 67,020 DRMS Costs 28% x direct costs) 18,765.60 Total Bond Amount 85 785.60 65