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• Historical soIl and spoil quality data aze presented and discussed in previous Topsoil and Spofl Monitoring reports (PCC, 1987 and 1989) and the Annual Reclamation Reports (PCC, 199], 1992, 1993, 1994, 1999, 2003) that have been submitted to the Division. • Wolf Creek Spoil No final graded spoil samples were taken in 2006. SCC was required to sample and analyze final graded spoil from dte Wolf Creek mining area prior to soil replacement. Spoil was sampled on a 300-foot horizontal grid and tested for pH, add base potential (ABP), and soil salinity (EC). Analyses for Wolf Creek graded areas can be found in the Annual Reclamation Reports, (PWCC, 1995 and SCC, 1999). • Soil Replacement Thickness SCC was required by CDMG to closely observe and routinely inspect soil replacement thickness in the Wadge and Wolf Creek reclamation areas at Seneca II Mine. This monitoring requitement is included in Permit C-80-0OS as Item 5 of the TopsoH Quality Contro] Program, presented in Vol. 7, Tab 9, Attachment 9-4, pages 9-41. Permit historical soil replacement thickness information for the 1984 through 1992 reclamation blocks is presented in Permit C-80-005, Table 9-4-3, Attachment 9-4; Tab 9 of the Second, Third, and Fourth Annual Topsoil and Spoil Monitoring Reports for the 1987, 1988, and 1989 field seasons; and the Annual Reclamation Reports (PCC, 1990; PWCC, 1991, 1992, 1993; SCC, 7994, 1995, 1996, 1997, 1998, 1999). In addition, Seneca conducted an exhaustive topsoil redistribution depth sampling program during the summer of 2000. See Appendix 2000.1 for field data of 2000 ARR and statistics. The mean value of topsoil replaced was 1.2 feet for the 575 samples taken. • Soil Balance Seneca submitted the fatal soil balance as Technical Revision No. 31 on June 26, 1997 as the final reclamation -topsoil management plan for Seneca II. Subsequently, the CDMG approved this final topsoil management plan on December 9, 1997. Hence, no sod balance will be submitted with any further Annual Redamadon Report • Soil SaWage, Storage and Replacement Approximately 8.0 acre-feet of topsoil remain in stockpiles as of December 31, 2006. This topsoil will be replaced on the solid waste disposal azea and the reclaimed portions of the fadlities area in the future. TABLE 06.1 TOPSOIL STOCgPILE VOLUMES Stoc ile Des' lion p Volume ac.ft. Stock ile A 1.0 Stock ife P 7.0 TOTAL 8.0 (1 See Exhibit 9-3a, 1995 Annual Reclamation Report for Stockpile locations.