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6.4.5 Exhibit E -Reclamation Plan <br />Dailey Ditch capacity of 30.438 cfs, 4) low maintenance with normal flow <br />velocities sufficient to allow for self-cleaning. Supporting design calculations <br />including pipe sizing, maximum receiving ditch flow water depth (at 30.438 cfs), <br />and riprap sizing are given in Attachment E-1. <br />1) Construction of the pipe will occur during non-irrigation season. <br />The construction of the pipe is to occur as follows; <br />2) Divert any existing water flowing through the culvert under County Line <br />Road away from the construction area. <br />3) Compact the backfill area that serves as the pipe subgrade to 95% dry <br />density. <br />4) Construct inlet wingwall as shown in the inlet detail of Exhibit F, Sheet 4 <br />5) Lay pipe and backfill concurrently to finished grade. <br />6) Construct pipe outlet riprap protection as shown in Exhibit F, Sheet 4. <br />Clay Liner Construction <br />Construction of the clay liners will occur following all mining and concurrent <br />reclamation activities for each lined cell. Clay material will be moisture <br />conditioned, stripped from the pit floor and placed in lifts surrounding the <br />perimeter of the mined-out and backfilled pit areas. Clay volumes are given in <br />Table 6.4.5-2. The clay liner geometry will be a wedge against the pit wall <br />measuring approximately 24 tt at the base and 12 ft at the top (see Exhibit F- <br />Reclamation Plan Map, Sheet 3). Clay material will be compacted in 1 ft lifts to <br />95% dry density and at or up to 2% greater than the optimum moisture content. <br />Geotechnical analysis of liner borrow materials and an engineered liner design <br />will be prepared prior to the construction of the liner, however the 100% bonding <br />option is requested. Costs to construct the clay liners are given in Exhibit L- <br />Reclamation Costs. <br />Table 6.4.5-2. Cla Liner Volumes <br />Minin Cell Volume d <br />Cell 1 135,000 <br />Cell2 79,000 <br />Cell 0 48,000 <br />Cell6 46,000 <br />Slope Grading <br />Slope grading will occur following all mining and concurrent reclamation. <br />Material from the pit floor will be pushed with dozers for final grade. Slopes will <br />be graded to a minimum of 3H:1V. Slope grading volumes are given in Table <br />6.4.5-3 <br />Turnpike Mining Resource M-2004-AM-9 <br />Regular 112 application <br />