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<br /> <br />XIII. EXHIBIT L -RECLAMATION COSTS <br />As described in Exhibit E -Reclamation Plan, and az shown on Figure F-1, Exhibit F -Reclamation <br />Plan Map, the proposed reclamation will wnsist of open water (either open lake or sealed water <br />storage reservoir) with reclaimed shoreline seeded with native grazses. Along Boulder Creek, trees <br />and shrubs will also be planted with two inch caliper cottonwood trees planted on 40-foot centers. <br />Because of the open water reclamation, most of the site will not be regraded for seeding, but will be <br />submerged. The following assumptions were made to develop the reclamation cost table presented <br />below: <br />• The total site area is 213 acres, 202 of which will be disturbed and eight of which constitute <br />undisturbed mining azea perimeter (setbacks and Boulder Creek buffer zone). <br />• Overburden backfill will be at 3:1 (H:V) to ten feet below maximum pool elevation; topsoil <br />will be placed and slopes reseeded, fertilized and mulched above pool elevation. Ten feet <br />below maximum pool elevation, reclaimed slopes will be at 2:1 (H:V) with no topsoil or <br />reseeding. The 2:1 (H:V) slopes are assumed to extend only four feet above the lake bottom <br />based on anticipated pool elevations. <br />• No reseeding will be performed on lake bottom areas. <br />• The embankment sepazating the proposed North and South Lakes will be constructed from on- <br />site earth materials should a sealed water storage reservoir be constructed. If insufficient <br />overburden (silty) materials are available, then the embankment will be constructed of sand <br />and gravel from Phase Four mining with a clay shale core excavated from shallow on-site <br />bedrock. <br />• <br />29 <br />K~J~ <br />