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When rock or rocky material is used for embankment, placement will be in layers not exceeding <br />the maximum size of the rock present, and in no case will lifts exceed 30 inches in depth. Rock <br />will be placed so that voids, pockets, and bridging will be reduced to a minimum. Rock layers <br />will be compacted by routing the spreading equipment and loaded hauling equipment over the <br />entire width of the fill until compaction is obtained. <br />Since the terraces and the portal areas cannot be irrigated from the Vulcan Ditch system, they <br />will be dryland farmed. The Operator initially planned to irrigate the dryland area late in 1995 <br />to assist in the establishment of vegetation. However, because of the unusually wet spring and <br />early summer and the good vegetation growth on the reclaimed area, no irrigation is planned. <br />Each terrace was regraded to insure an even level of each respective terrace prior to placing <br />topsoil. Material from the tunnel excavation was graded and then covered with topsoil. <br />Material from the tunnel excavation was graded and then covered with topsoil. <br />Prior to seeding, the areas were ripped, and leveled. All seeding was conducted on the contour, <br />where possible. All areas, which were occupied by topsoil storage piles, were also vegetated <br />following the distribution of the topsoil over the disturbed areas. A minimum of 16 inches of <br />topsoil material was left in place in the topsoil piles footprint for vegetation. <br />4.4.2.4 Sediment Control and Surface Water Hydrology <br />Sediment control of the recontoured areas and topsoil stockpiles was maintained satisfactorily <br />during the reclamation operation and will be maintained during the 10 year bond liability <br />period. <br />Culverts C-2, C-3, C-5 and C-6 were not removed during the 1994 reclamation project (see Figure <br />4.23). Culvert C-3 was removed during 1995. Culverts C-2, C-5 and C-6 will be removed during <br />the 2015 reclamation of sediment pond A. <br />Berm #1 and Ditch #2 were removed in 1994. In 1994 ditches 1, 3 & 4 were modified. As part of <br />the 2105 reclamation, ditches 1, 2, 5, 8, 9 will remain in place for irrigation purposes. Ditches 8 <br />& 9 are offsite ditches, which serve offsite irrigation only. Ditches 3, 4, 6 & 7 will be removed. <br />Minimum dimensions of the sediment control ditches are as specified in Exhibit 4.7-2. <br />NCIG-Coat Ridge No. 1 4-57 09/2015 <br />