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Page 14 <br /> 6.4.12 EXHIBIT L — Reclamation Costs <br /> Raptor has made allowance for liner installation on the regraded slope. Assumptions are that a 4- <br /> foot-thick liner will be keyed into bedrock at the base of the regraded slope and up the slope to <br /> approximately 5 feet below the original surface elevation. The western wall of the excavation has <br /> already been regraded and lined and is therefore not included in the perimeter used in calculations <br /> below. The remaining slopes have an average depth of 30 feet. The keyway dimensions in bedrock <br /> are assumed to be 4x4-foot. <br /> Perimeter liner at 9,357 lin.ft. x 40 sq.ft./ft x 4 ft. / 27 = 55,476 CY of liner placed at an estimated <br /> cost of$1.302/CY = $ 72,229.70. <br /> Keyway at the base of the 3:1 slope is estimated at 8,830 lin.ft. x 16 sq.ft./ft/ 27 = 5,233 CY of liner <br /> placed an estimated cost of$2=1.302/CY = $6,812.84. <br /> $ 79,042.53 Total Liner Installation Cost <br /> Soil Demand AND Re-soilina of Affected Lands (refer to Exhibit D): <br /> NOTE: The soil demand (and related costs) will decrease proportionately as extraction <br /> activities progress over each Tract of planned extraction as a result of concurrent <br /> reclamation. For now, a conservative area estimate to reclaim the lands above the static <br /> water level of the entire extraction area will be determined for resoiling expenses. <br /> 111.05±acres —Total Extraction Area <br /> 24.49± acres Plant Processing/Mineral Reserve Area 2 <br /> -90.10+ acres —Static Water Area <br /> 45.44± acres —Requiring Revegetation from initial operations <br /> At a depth of 0.5± feet, the total volume = 45.44± acres x 0.5± feet of soil replacement x <br /> 43,560.0± sq.ft/acre _ 27 cu.ft/cu.yd. = 36,655± cu.yds. total soil requirement. At <br /> $1.314/LCY, the total cost of soil replacement is $48,164.58. <br /> We assume that 25% of the soil replaced, or 11.36 acres, will require disking or scarifying. <br /> At $589.35/acre, the total cost of disking/scarifying is $6,695.06. <br /> The majority of soil placement can occur using an average placement distance of 600 ft., <br /> or less along embankments, (utilizing the same assumptions utilized at the Two Rivers <br /> Project as included with this exhibit). <br /> $ 48,164.58± for soil replacement <br /> $ 6,695.06± for disking/scarifying <br /> $ 54.859.64+ to replace 0.5± feet of soil over the existing affected lands <br /> RAPTOR MATERIALS, LLC. PARCEL 122- RESOURCE DEVELOPMENT PROJECT APRIL 2024 <br /> A REGULAR IMPACT[112]CONSTRUCTION PERMIT APPLICATION-COLORADO DIVISION OF RECLAMATION, MINING&SAFETY <br /> TECHNICAL REVISION 03 <br />