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Cameo Refuse Disposal Area Nos.1 and 2 <br />Reclamation of the remaining benches and the top of the Cameo Refuse <br />Disposal Areas (CRDA) was performed as discussed in section (a) of this Tab <br />Section. The final contours for these sites are shown on Exhibit 9C, this section <br />and Exhibits 51, 52 and 60 located in Tab Section 13. Cross - sections <br />representing the existing and final grade are shown on Exhibits 18 and 53, Tab <br />Section 13. These contours reflect a design final configuration rather than AOC. <br />Design for the slopes and benches is given in Tab Section 13 along with Exhibits <br />18 and 51 through 53 and 60. <br />Cover of the refuse piles was implemented in three stages. First the outslopes <br />and benches were graded to design slopes. Overburden material was then <br />hauled to the toe and along the benches and spread over the surface of the piles <br />to the design thickness. The overburden thickness was the total cover <br />requirement less the available topsoil cover thickness. The third stage was the <br />distribution of the topsoil using the same method of placement as used for <br />overburden. Temporary roads were installed within permitted disturbance <br />boundaries as necessary to access the benches with trucks and heavy <br />equipment. The MSHA berms installed on the roads during pile use were graded <br />into the inside edge of the road and a minor amount of filling was done along the <br />road to direct runoff flows across the former road rather than down the road. <br />Where benches are intersected by the road, the areas were graded and covered <br />to establish continuous benches across the pile. Cover material for CRDA 1 and <br />CRDA 2 was obtained from the Cameo Borrow Areas (CBA) Nos. 1 and 2, Coal <br />Canyon and Topsoil Piles 2, 7, 8 and 9 as necessary. Cover material for CRDA 2 <br />was also generated during the construction of the upper diversion ditch as shown <br />on Exhibits 53 and 60. Table 14 -1 lists the cover volume for these piles using the <br />design 18 and 24" cover requirements. <br />Soil sampling was performed during 2002 on the cover material placed on CRDA <br />2 which included material from the upper diversion ditch. Sampling for pH, EC, <br />SAR and textural analysis was performed on a frequency of 1 per acre, <br />approximately 200' centers and 18" depth intervals. The soils were classified as <br />Silt Loam or Silty Clay Loam. See Appendix 9 -7 for the results of the soil <br />analyses. <br />PR -5 14 -11 (Rev. 02112) <br />