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• Soil Pit -Soil Fertility Four deep backhoe pits were excavated at geographically located sites. A total of seventeen (17) samples were collected from the four pits. The sampling included the reapplied topsoil to the underlying spoil contact All reapplied topsofl samples have "good-rated" suitable quality material. The 2006 So$s Report is attached and provides the detailed write-up, analytical data, and sampling locations from the 2006 sampling effort. • Topsoil Balance SCC submitted a topsoil balance with Permit Revision 04 (dated 9/04). A topsoil balance is completed to ensure topsoil is salvaged, stockpiled, and replaced as recommended and approved is the permit, and, if necessary, to readjust the topsoil salvage and redistribution thickness. The topsoil information is also used to update the topsoi3 volume information previously submitted and adjust the mean topsoil replacement thickness as necessary. Topsoil Salvage and Storage. The life-of-mine disturbance area from which topsoil was salvaged (1,381.5 acres) and the topsoil stockpile sites as of December 31, 2006 axe shown on the Seneca II-W Mine 2006 Reclamation Map The actual volume of topsoil salvaged and stockpiled from 1989 through December 31, 2006 was determined by field survey of existing topsoil storage stockpiles. The stockpile volumes as of December 31, 2006 are listed in Table 06.1. As of December 31, 2006, 73.1 acre-feet of soil were stockpiled along the Tie-Across Haul Road and 245.2 acre-feet of soft remain stockpiled in the mining azea. • Topsoil Replacement Topsoil was replaced on 110.2 acres of disturbed area in 2006. Therefore, the total remaining life-of--mine disturbance azea requiting topsoil (as of December 31, 2006) is 177.7 acres. Topsoil Replacement Thiclmess. The overall loll replacement thickness for the II-W mine area was originally projected to be 1.3 feet for the mine azea and 0.7 feet for the Tie-Across Haul Road. The soil balance for the remaining disturbed area, as of December 31, 2006, was calculated as follows: Mine Area Total disturbance area = 1,284.9 acres Permanent Facilities & Topsoil replaced = 1,107.2 acres Disturbance area requiring soil = 177.7 acres Soil in stockpiles (Table 06.1) = 245.2 aae-feet Mean replacement depth = 1.3 feet (15.6 inches) Tie Across Haul Road Disturbance area requiring soil = 96.6 acres Soil in stockpiles (Table Ob.l) = 73.1 acre-feet Mean replacement depth = 0.75 feet (9 inches) Topsoil depth sampling was conducted during 2006 over the majority of the azeas topsoiled is 2006. The overall topsoil replacement thickness averaged 1.3 feet (15.7 inches). The data is presented in Table 06.6 and on the 2006 Soil/Spoil Sample Locations map. Tab 2], Minesoil Reconstruction, in the PAP, indicates an estimated average of 1.3 feet (t 5.6 inches) would be replaced over final graded spoil in the North Il-W azea, however sampling measurements