REP29936 - Laserfiche WebLink

Home Browse Search

• • Soil Replacement Thickness SCC is required by CDMG to closely observe and routinely inspect soil replacement thickness in the Wadge and Wolf Creek reclamation azeas at Seneca II Mine. This monitoring requirement is included in Permit C-80-005 as Item 5 of the Topsoil Quality Control Program, presented in Vol. 7, Tab 9, Attachment 9-4, pages 9-47. Permit historical soil replacement thickness information for the 1984 through 1992 reclamation blocks is presented in Petntit C-80-005, Table 9-43, 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, 1994, 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 stadsdcs. The mean value of topsoil replaced was 1.2 feet for the 575 samples taken. Soil Balance Seneca submitted the final 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 soil balance will be submitted with any Further Annual Reclamation Report. • Soil Salvage, Storage and Replacement • Approximately 8.0 acre-feet of soil remain in stockpiles as of December 31, 2004. TABLE 04.1 TOPSOIL STOCgPILE VOLUMES Stoc ile Des' adon tt Volume ac.ft. Stoc ile A 1.0 Stock ile P 7.0 (1 See Exhibit 9-3a, 1995 Annual Reclamation Report for Stockpile locations. • Seeding and Sbmb Planting There was no shrub planting conducted at Seneca II in 2004. A small reseeding project was conducted in the area azound Channel PM-SA. The Department of Forest, Rangeland and Watershed Stewardship, regarding the Shrub Establishment Study ongoing at Seneca II, provided two reports which are attached. • Weed Control Survey for noxious weeds was carried out on the Seneca II Mine permit area in 2004. Monitoring was conducted in 2004 to determine the need or level of retreatment necessary for areas sprayed . in 2003. Canada thistle was the primary tazget species in all control areas, with lesser activity directed towards areas of hounds tongue and whitetop. The applied herbicide consisted of a tank mix of 2.5 gallons of 22K Tordon and 2.5 gallons of 2,4,D with 250 gallons of water. Escort at