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Page 17 <br /> 6.4.12 EXHIBIT L - Reclamation Costs <br /> 2,555± lin.ft. (extraction front and side slopes) x 1,400.00± sq.ft. = 132,481± LCY <br /> 132,481± LCY <br /> x $ 0.56± per LCY. <br /> $ 74,189.63±fill along an 2,555-foot extraction front cut at 1.25HA V. <br /> Assuming a mean depth of advancing cut of 2:1V at the extraction limits of 40.0± feet <br /> depth: <br /> 2,555± lin.ft. (extraction front and side slopes) x 800.00± sq.ft. (required fill — Diagram <br /> 1, above) = 75,704± LCY <br /> 75,704± LCY <br /> x $ 0.56± per LCY. <br /> $ 42,394.07 Sub Total-Grading to 3H:1V along an 2,555-foot extraction front cut at 2H:1V <br /> $ 74,189.63 Sub Total-Grading to 3H:1V along an 2,555-foot extraction front cut at 1.25H:1V. <br /> + $ 42,394.07 Sub Total-Grading to 3H:1V along an 2,555-foot extraction front cut at 2H:1V. <br /> $116,583.70 Total — Initial Grading. <br /> Liner Installation: <br /> Raptor has made allowance for liner installation on the regraded slope. Assumptions are <br /> that a 4-foot thick liner will be installed keyed into bedrock at the base of the regraded <br /> slope and up the slope to approximately 5-foot below the original surface elevation. It is <br /> further assumed that the interior wall of the regraded core area will be of similar length <br /> to the external wall. The keyway dimensions in bedrock are assumed to be 4x4-foot. <br /> Perimeter liner at 5,110 lin.ft. x 2 x III sq.ft./ft x 4 ft. / 27 = 167,577 CY of liner placed <br /> at an estimated cost of $2.20/CY = $ 368,670.04. <br /> Keyway at the base of the 3:1 slope is estimated at 9,435 lin.ft. x 16 sq.ft./ft/ 27 = 5,591 <br /> CY of liner placed an estimated cost of $2.20/CY = $12,300.30. <br /> $ 380,970.34 Total Liner Installation Cost <br /> Soil Demand AND Re-soiling of Affected Lands (refer to Exhibit D): <br /> VARRA COMPANIES, INC. TWO RIVERS SAND GRAVEL AND RESERVOIR PROJECT MARCH 2O22 <br /> A REGULAR IMPACT[1121 CONSTRUCTION PERMIT APPLICATION-COLORADO DIVISION OF RECLAMATION MIING&SAFETY <br /> OFFICE OF MINED LAND RECLAMATION <br />