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presented as Attachment 9-2C to Tab 9, SMP C-008-81, included all of <br /> former Mining Areas 4 and 5 (see Exhibit 12-2, Operations Plan, <br /> submitted with Permit Revision No. 1 and Exhibit 9-1, Soil Types) . <br /> An Order 1-2 soil survey of the Scraper Pit was completed by Peabody <br /> Coal Company in July, 1986. The Scraper Pit survey area is located <br /> southeast of the Nucla Mine office in portions of the E 1/2 NE 1/4 <br /> Section 36, T47N, R16W and the SW 1/4 NW 1/4 and NW 1/4 SW 1/4 Section <br /> 31, T47N, R15W. This survey information, presented as Attachment 9-4 to <br /> Tab 9, SMP C-008-81, included all of Mining Areas 2 and 3 (see Exhibit <br /> 12-2, Operations Plan, and Exhibit 9-4, Soil Types and Topsoil Salvage <br /> Depths) . <br /> An Order 1 soil survey on about 95 percent of the 607.2 acre Nucla East <br /> study area was completed by ERT, Fort Collins , Colorado in June and <br /> July, 1987. An Order 1 soil survey on the remaining 32 acres was <br /> completed by Peabody Coal Company in March, 1988. This survey <br /> information, presented as Attachment 9-5 to Tab 9, SMP C-008-81, <br /> includes the proposed Nucla East Mine permit area, the associated <br /> disturbance area, and additional area for future mine expansion (see <br /> Exhibit 12-3 , Operations Plan - Nucla East; Exhitrit 9-3, Soil Types and <br /> Topsoil Salvage Depths; and Exhibit 9-6, Soil Types, Sample Locations, <br /> and Topsoil Salvage Depths) . <br /> Historical topsoil balance information for Nucla Mine is summarized in <br /> the Topsoil Management Plan section of Tab 21 , Minesoil Reconstruction. <br /> Current topsoil stockpile designations and locations for Nucla Mine are <br /> shown on Exhibit 21-1, Topsoil Balance Plan, and discussed in Tab 21. <br /> Proposed topsoil , subsoil , and suitable spoil replacement depths for the <br /> life-of-mine operation at Nucla Mine are shown on Exhibit 21-2, Postmine <br /> Soil Replacement Depths, and summarized in the Topsoil Management Plan <br /> section of Tab 21. Historical (1979-1983) topsoil stockpile <br /> designations and locations , discussed within Tab 9 and Attachments 9-1 <br /> and 9-2, are still shown on Exhibit 9-2, Stripping Isopach and Topsoil <br /> Stockpiles. <br /> v Revised 04/11/88 <br />