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• Soil sampling will be done prior to excavation to define the limits of <br />excavation on the borrow areas which will have soils stripped. Sampling <br />for SAR and EC in these areas will be done on a frequency of 1 per acre, <br />approximately 200' centers, and 2' depth intervals. Sampling of topsoil <br />piles will also be done prior to placement as cover. <br />Table 14-1 lists disturbance areas and the soil balances for reclamation <br />including anticipated topsoil redistribution information. Areas where <br />topsoil has been stripped, including roads and drainage structures, will <br />generally have 6" of topsoil replaced. Table 14-2 is a listing of topsoil and <br />overburden stockpiles and the area that can be covered with 6" of topsoil. <br />Areas where no topsoil was salvaged, including the Roadside South <br />Portal area, the Unit Train Loadout area, the South Fan and the 2 West <br />Portal area. These areas will be covered with a suitable amount of plant <br />growth material and amended as necessary. <br />The original surface of many of the disturbance areas originally had a rock <br />cover density of 5 - 10%. In a review of this application by the Colorado <br />Division of Wildlife in 1996, they recommended a similar final reclamation <br />•~ ground cover of rock. Such placement of rock can be difficult and <br />dangerous on steep hillsides and interfere with revegetation efforts on <br />slopes where drill seeding can be done. In addition, placement of rock in <br />areas where rock is not readily available can be cost prohibitive. In areas <br />where rock greater than 2-feet in diameter is readily available, efforts will <br />be made to segregate rock for placement on the final surface. To <br />minimize interference with drill seeding, these rocks will be placed in <br />groups or piles. <br />Rock groups (each group consisting of one to ten 24 to 30-inch diameter <br />rocks) will be placed on the reclaimed surface of CRDA-1 and CRDA-2 in <br />accordance with Figure 14-4. Inclusion of larger rock as a portion of the <br />total is acceptable. No rock will be placed on the 10' to 15' wide terraces <br />between the benches. Placement of rock groups only applies to the <br />portions of the refuse disposal areas reclaimed after 1998. <br />This rock replacement plan is considered typical for other reclaimed areas <br />where rock is available. <br />14-15 (Rev. 3/02 ) <br />