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salvage area and existing soil stockpiles, as of December 31, 1991, were transferred from . the Seneca II-w Pit Progress and Reclamation Map to a 1" = 400' scale Existing Contours Map dated October 3, 1991. This disturbance area, provided by the Seneca 11-W engineering staff, was confirmed by overlying the black and white 1" = 400' scale aerial photo dated October 3, 1991 and by an on-site field check on October 18, 1991. The remaining soil salvage areas and affected lands boundary for the first five-year permit term was transferred from the base map used to prepare Table 21-4, Tab 21 for Permit ..~ C-82-057. Appropriate changes were made to incorporate recent revisions associated with The relocation of Pond 005, realignment of haul road G, and reduced soil salvage along the light use ingress road to Pond 009. Proposed soil stockpile sites shown on Exhibit 91.2 were transferred from the Operations Plan, Exhibit 12-2, dated 03/73/92. Soil has been salvaged from 399.1 acres since construction of the tie across haul road was initiated in 1989. Additionally, 38.5 acres of disturbance are associated ui th the mine entrance haul road. The soil has been placed in storage at Stockpile Sites A, C, D, E, F and G along the tie across haul road and at Stockpile Sites 1, J, K, L, N, P1, P2, AA, 88, GG, and KK at the mine site. Sail has been replaced at an approximate thickness of 1.3 feet on 16.0 acres during 1990 and 1991. ~r~ U The actual volume of soil salvaged and stockpiled from 1989 through 12/31/91 was determined by field survey of existing soil storage stockpiles. The base and existing elevations for each stockpile were completed by the Seneca II-W engineering staff. The "Stock" volume calculating program was used to generate the soil stockpile volumes presented in Table 91.1. As of December 31, 1991, 69.7 acre-feet of soil were stockpiled along the tie-across haul road and 389.5 acre-feet of sail were stockpiled in the mine area. Projected soil salvage areas and volumes for the remainder of the first five-year permit term (shown on Exhibit 91.2) were determined as follows. Soil map units and mean salvage thickness for the undisturbed areas are identified on the baseline soil map, Exhibit 9-1, Soil Types and Topsoil Salvage Map (dated 04/19/92) for Permit C-82-057. Individual soil map units to be disturbed by mining activities were digitized to determine the total affected area. Projected soil volumes were determined by multiplying each affected soil map unit area by the respective mean soil salvage thickness. The projected soil salvage areas, soil salvage thickness, and soil volume for each soil type for the remainder of . the first permit term are listed in Table 91.2. It is projected [hat 482.0 acre-feet of 4