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• Picketwire plans to topsoil some areas disturbed prior to <br />1977. Map 15, Surface Disturbance and Postmining Land Use - East <br />Portal and Map 16, Surface Disturbance and Postmining Land Use - <br />West Portal was prepared to facilitate topsoil planning. These maps <br />show all areas where underground development waste has been <br />deposited and areas of limited disturbance (i.e., lay-down areas, <br />roads) where the soil profile has not been disturbed. On July 11, <br />1985 soil samples were taken to a depth of 18 inches. In December <br />1986 soil samples were taken in one foot increments to a depth of <br />36 inches. The results of these analyses axe provided in Section <br />2.04.9, Soils Resource Information. In general, the refuse does not <br />exhibit any apparent limiting factors which would limit plant <br />growth. The primary limiting factor is the black color. As such, <br />Picketwire believes it is prudent to concentrate efforts on covering <br />the waste with 9 to 6 inches of topsoil. The remaining areas with <br />no waste can be ripped and the seedbed prepared using standard <br />agronomic practices. <br />There are approximately 5 acres of waste to be covered in <br />the West Portal area and 22 acres in the East Portal area. Two acres <br />in the East Portal were topsoiled with 9 to 6 inches during the <br />Middle Fork diversion construction. A 1994 survey documented 16,296 <br />cy of topsoil was salvaged during construction of Pond 004. It will <br />require 13,310 to 20,167 cy of topsoil to cover 25 acres with 9 to <br />• 6 inches. With 16,296 cy available from the existing stockpile, the <br />borrow requirement is 3,870 cy. The soil will come from one of two <br />sources: from excess topsoil from the RDA salvage operations (if <br />available) or from a borrow area east of the non-coal waste dump. <br />Picketwire will have a balance of 3,939 cy of topsoil from <br />the refuse disposal area topsoil piles for final reclamation. This <br />material will be used if available. If not, the Division <br />recommended that WFC borrow topsoil from the lay-down area east of <br />the non-coal waste dump. This low lying area should be a good <br />source. No waste has been deposited in this area and soil samples, <br />to a depth of 18 inches, indicate suitable topsoil. Picketwire will <br />salvage the required 3,870 cy by stripping 1.0 feet over 2.5 acres. <br />In summary, topsoil for reclamation of the waste areas <br />located within the facilities areas will be derived from the <br />Entrance Road stockpile (16,296 cy), the RDA stockpile located near <br />the RDA conveyor (3,939 cy) or the borrow area east of the non-coal <br />waste dump for a total of 20,167 cy of material as required. <br />• <br />2.05-22 (revised 3/13/98) <br />~~( <br />~I~ 0 <br />