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• Revised 12/21/82 <br />All overburden preparation and placement of topsoil will be <br />done along the contour to minimize the hazard of soil erosion. <br />If the reclaimed surface develops severe erosion problems, <br />requiring structural erosion controls such as rip-rap, check <br />dams, etc., Walden Coal Company will submit the required revision <br />which shows the necessary design change and its maintenance. <br />The gentle slopes of the reclaimed surface will be easily <br />worked and seeded using standard reclamation equipment. No <br />behavioral or use patterns of indigenous animals found in the <br />area would be expected to change on the reclaimed surface. <br />Compaction <br />Plate 20 shows the anticipated final surface configuration <br />of the permit area. Compaction will be attained by the road <br />traffic of the various pieces of equipment mentioned above. This <br />• type of compaction has been used in the past and has proved very <br />effective. <br />Toosoilin <br />Table 4 shows the plan and schedule for stockpiling 232,910 <br />bank yards of topsoil and redistributing 53,881 yards of this <br />topsoil in Stages I and 4. Topsoil will be removed with scrapers <br />prior to mining, taking as much as S feel from areas of non- <br />saline-sodic, thick alluvial soil and less from the Tops of <br />knolls and ridges where the soil is poor and thin. Topsoil will <br />be placed to a depth of approximately one foot in all areas. <br />The areas of saline-sodic soils are shown on Plate 15. They <br />are out of the mining area. When topsoil is removed from these <br />areas, it is stockpiled separately and will be buried at least 25 <br />feet deep in the pit rather than reapplied for vegetative growth. <br />:~ ~ - - -~ F-6 - <br />