2023-01-09_REVISION - M2021052 (24)

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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 slope 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 0.70 acres of wetland reclamation area, utilizing approximately 566 CY of salvaged fill and topsoil, at a cost of$3/CY = $1,698 total. • Seeding and Planting of the 0.70 acres of wetland reclamation area with the Wetland Seeding and Planting Mix, at a cost of$10,000/ac = $7,000 total. • Construction of perimeter berms on 2.87 acres, utilizing approximately 11,303 CY of salvaged fill at a cost of$3/CY = $33,909 total. • Replace 2,221 CY of salvaged topsoil on the perimeter berms at a cost of$3/CY = $6,663 total. • Seeding and erosion control on the 2.87 acres of perimeter berms, using the Upland Seeding and Planting Mix, at a cost of$1000/ac= $2,870 total. Based on these costs, and a 28% DRMS cost factor, the total bond for the Rifle Gravel Pit will be $66,060.80 Table 7. Reclamation Costs Activity Description Time Months cost $ Backfill of pond to create wetland fringe 1 1,168 Seeding & Planting of wetland fringe 1 7,000 Construction of perimeter berms .25 33,909 Surfacing of perimeter berms with topsoil 1 6,663 Seeding of berms with upland seed mix 1 2,870 Sub-Total .65 51,610 DRMS Costs 14,450.80 28% x direct costs Total Bond Amount $66,060.80 67