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• Summery. The soil replacement thickness for the remaining permit terms was projected to be 1.0 feet (Permit C-80-005, Tab 9, Attachment 9-4). The balance completed above shows at least 0.8 feet of soil will be available to be replaced. Peabody suspects the difference between pre-disturbance projected end post-disturbance actual soil redistribution thickness is attributed to two important factors. First the density of soil in stockpiles has probably increased end caused an underestimation of soil that is stockpiled. The stockpiled soil will swell during redistribution. Second, the soil volume figure of 129.8 acre-feet provided for stockpile site XN in November 1987 was apparently incorrect. About 11.5 acre-feet of soil was removed from this pile during 1992. However, the 1992 survey information indicates this pile decreased in volume by 51.9 acre-feet (Table 92.3). Peabody will continue to seLvege, store, end replace soil as described and approved in Permit C-80-005. Peabody's soil scientist and reclamation supervisor will continue to closely monitor soil handling activities at Seneca II, verifying scraper operators ere salvaging all viable soil materials and redistributing soil at the specified thickness. Revegetetion Revegetetion activities in 1992 included permanent revegetation of disturbance areas at the • Seneca II Mine. Permanent revegetation included seeding and planting of trees and shrubs. Permanent seeding was completed on 28.0 acres in the wedge mining area and 42.5 acres in the wolf Creek mining area, as shown on Exhibit 92.5, Seeding, Planting, and Noxious weed Survey/Control Locations. Also shown on Exhibit 92.5 is a 1.7 acre area in the wedge which was seeded in 1990, but was not reported in the 1990 Annual Reclamation Report. Seedbed preparation operations, where used, consisted of tillage with an off-set disc prior to permanent seeding. Seed Mix #1 with supplemental species as presented in Table 92.4, was submitted to the Division for review in September 1492. Seed M(z #1 was used for ell permanent seeding conducted et the Seneca II Mine in 1992. Seeding was completed with a modified rangeland type drill seeder equipped with multiple seed boxes end depth bands on the disc openers. No mulching activities were conducted during 1992. All permanently revegeteted areas were cover cropped with winter wheat at an approximate drilled rate of 15 pounds per acre. A total of 9,782 seedlings were planted in 6 concentrated shrub planting areas in 1992 (See Exhibit 92.5 for locations). Table 92.5 lists planting areas and approximate acreages, • species composition of each area, and the total numbers planted by species for each area. All plant materials were one-yea r-old stock developed from chokecherry, serviceberry enc 6