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<br />ASSUMPTIONS USED IN CALCULATING MATERIALS MINED FROM EACH PIT. <br />Total Topsoil 562,328 CY <br />• <br />Total Clay 2,194,956 CY <br />Total Waste Rock 11,374,681 CY <br />Total Stripping 14,194,549 CY <br />Large waste piles were divided into smaller units for better <br />implementation of sequencing. Haul distances were calculated from <br />the centroid of each proposed cut to the centroid of the area in <br />the waste pile being filled. Haul distances for ore hauled to the <br />plant remained the same. Please note some sequencing changes for <br />the 3rd and 4th ridges after year 11. Tonnages for each pile and <br />their respective areas were determined by SHB AGRA. The tonnages <br />in the ose ards whereas the tonn es-coming <br />rpm the mine ar ards. 1 bank yar o topsoil or c a is ~ ~- <br />equa o 1.2 loose yards. 1 bank yard of rock is equal to 1.5 <br />loose yards. <br />CONCLUSIONS: <br />By not building separate clay piles, a dramatic change in recla- <br />mation sequencing occurred creating many positives. Many piles <br />are reclaimed the same year they are developed. Roads to some <br />piles are only needed for a short time and are then reclaimed. <br />Distances are shortened because rock from a closer area can be <br />used instead of clay from a more distant pit. Major disturbances <br />• can be kept close to 100 acres or less. Reclamation begins in <br />year 0 which will receive a positive reaction from the neighbors <br />and the public. Overall haul distances were reduced by 25~ which <br />will have a positive effect on air quality. <br />THE PLAN: <br />This plan attempts to keep mining and reclamation in balance. <br />Year 0 is the development year where 2 years of mining in each <br />pit is opened up. Haul roads are built and public roads are <br />relocated using materials from pit development. Some waste piles <br />are completed and reclaimed at the end of the year. The plan is <br />then laid out in 5 year increments. The overlays show the major <br />disturbances created from mining and building waste piles. The <br />moderate disturbances are areas that have been contoured with <br />some clay overlayed but not topsoiled and seeded. The reclaimed <br />areas are where reclamation is complete. An attempt was made to <br />build the waste piles to the south and the west ahead of mining <br />in order to shield the mining operation from public view. The <br />topsoil that should be removed before building piles outside the <br />mining area has not been accounted for. It can be used where ever <br />necessary to enhance reclamation. It should not be covered up. <br />Historically, the plant shuts down for maintenance for 2 weeks or <br />more during the first quarter of the year. This time df the year <br />• provides an excellent opportunity for stripping and reclamation <br />contouring. Seeding of plants and trees can then follow in the <br />