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10.2 Bench 1 and Topsoil Placement Equipment and Practices <br /> Bench 1 material will be placed via haul truck and dozer. Prior to the placement of any material, <br /> stakes will be placed in the Bench 1 overburden and marked with the height that Bench 1 must <br /> be placed to. These stakes will be placed in the overburden. Dozer operators will then spread the <br /> Bench 1 over the area to the height marked on the stakes. This same procedure will be repeated <br /> for topsoil (Lift A, B, or Mixed). Each topsoil and Bench 1 lift will be placed at its final <br /> thickness over whatever area a single truck load can cover at a given time. When a truck load is <br /> dumped onto an area, the dozer operator will only spread the material out over an area that can <br /> be covered at the required thickness. This will minimize compaction, since the dozer will not be <br /> retreading over previously placed material to place a new layer. This process will take place for <br /> each lift placed. <br /> 11.0 Topsoil Replacement <br /> The topsoil replacement for the mine is divided into the three original topsoil study areas. These <br /> are discussed in the following subsections. <br /> 11.1 Topsoil Replacement- 1988 and 1995 Study Areas (East of 2700 Road) <br /> These study areas are located east of 2700 Road. As of February, 2008, this area has been <br /> stripped, replaced and reclaimed. The various tracts had different topsoil placement thicknesses <br /> depending upon landowner and land use. The material replaced, as reported in the Annual <br /> Reports, is shown on Map 2.05.4-4. As indicated on the map, most of the area was stripped and <br /> replaced in two lifts; however, in some cases the combined lift thickness is shown. During the <br /> topsoil stripping, a deficit was encountered in the amount stripped compared to the amount <br /> predicted from the soil survey. ERMR proposed the use of selected overburden or interburden <br /> materials (approximately 33,600 yd3) as topsoil substitutes or plant seedbed media for this area, <br /> which is 9.7 acres immediately north and west of Pond 007 (see Map 2.05.4-4). This is based on <br /> the fact that this area had poor topsoil in the beginning (Soil Unit 810) and the lower than <br /> anticipated recovery of 80 percent for the remaining Soil Units IE, 1 EW, 808, 30C in the <br /> surrounding area. The substitute soil was shown to be acceptable for reclamation. This change <br /> was approved and the replacement work was completed. As of February, 2008, these reclaimed <br /> areas appear to be doing well and will meet the bond release criteria. As of June 2010, much of <br /> the area has obtained or is about to obtain Phase 2 bond release. <br /> Approximately 800 yd of mixed topsoil from Pile L will be hauled to the Michael Moore <br /> property to facilitate reclamation of Ditch D-108. Mixed topsoil from Piles L & D will be also <br /> hauled to the following properties to facilitate reclamation of Ditch C-18: ERMR (1,200 yd3), <br /> Melvin Staats (6,400 yd3) and GW46 Trust (2,000 yd3). This material will be transported at the <br /> request of the landowners and all areas have previously received Phase III bond release. <br /> November 2018 (MR-110) 2.05.4(2)(d)-13 <br />