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B. Topsoil Salvage Operations Information on topsoil salvage methods is found on pages: 2.04.9-16, 2.05-2, 2.05-4 and -5, 2.05-24 through 2.05-27 and 4.06-1 through 4.06-3 of the PAP. Additional information can be found in Exhibit 9 and Maps 5 and 6 of the PAP. In general, the topsoil handling plan calls for removal of all A and B horizon materials with the exception of the Campspass B horizon, which can be easily distinguished in the field by its hard columnar structure. Coiowyo states that "based on topsoil volume calculations it is felt that there is a sufficient quantity of more desirable horizons with loam and clay loam textures making it unnecessary to remove undesirable heavy clay horizons." Specific areas where topsoil will. not be salvaged aze described on page 4.06.1 of the PAP. Topsoil will be removed during the late spring to fall, ahead of pit advance- Vegetation, with the exception of large trees, will be removed and redistributed with the topsoil: Topsoil will be removed to topsoil stockpiles or,-where possible, applied directly to regraded. spo~7 or kept temporarily in windrows awaiting redistribution. Topsoil stockpiles neaz the pits, including one lazge topsoil stockpile near the shop/maintenance azea, are shown on Maps 22 and ZS..Three stockpiles are located in the northern portion of the. pemut. azea and aze shown on Map 21. All soils stockpiles will.bepzotected.from erosion and. will. not be moved without Division approval.. . The Division noted in the original Permit Preliminary Adequacy Letter of Apri19, 1981, that soil mapping and sampling was evidently done at the level o€ as Order ll soil survey,. and questioned whether this provided sufficiently detailed. information on which to base the available topsoil volume estimates. Colowyo responded that little additional informafion would be gained from a more detailed Order 1 level survey due to the high vaziability of soil types and depths over the permit area. The Division concurred. Colowyo committed itself in 19$l; in its original permit application, to inchxle information in its annual reclamation reports to verify that enough topsoil was being salvaged to replace a sufficient amount of soil on regraded areas. This information was reported until 1986. The Division in 1987 suspended this monitoring n:c}uirement; as:the data indicated.that sufficient . topsoil will be available to meet reclamation needs throughout the Fife of the mine: . Overall Life-of--mine topsoil balance is estimated in Table I, Topsoil Schedule for Mining Area, page 2.05-4 of the Permit while the estimated topsoil balance for the 1997-2002 permit term is found in Table 2, Topsoil Removal and Reclamation Schedule, page 2.05-5. Topsoil salvage is projected to continue until the yeaz 2010; after which time only topsoil redistribution will occur. C. Topsoil Redistribution Topsoil redistribution is described on pages 2.05-41, 2.05-42, and 4.06-3 through 4.06-4. October 21, 2002 34