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WipAkiCTillanl, W.W1ii1FTi1Wne r <br />These lands include all lands north of BB Road and west of 2700 Road except for the 4.76 acres of <br />prime farmland soils previously described. As of June 2010, there is approximately 107 acres of land <br />that has been backfilled and topsoiled with Mixed Topsoil that covers all of Benson West and about <br />half of the Lloyd property. This is shown on Map 2.05.4 -7 as Zone 6. The replacement thicknesses <br />for this area are 15 to 24" of Lift A Topsoil material over approximately 30" of Bench 1 spoil. <br />Although this material is likely to meet the requirements for subsoil suitability, this material will not be <br />tested according to the parameters in Table 2.05.4(2)(d) -1 for subsoil suitability. It will be tested for <br />spoil suitability. Some samples of the Bench 1 material were taken in 2008 from this area and tested <br />for suitability, however, no additional testing will be done on this material in this area. For the <br />remaining areas north of BB Road and west of 2700 Road on the remaining Lloyd and WFC <br />properties, called Zone 7, the replacement thicknesses for this area are 12" to 20" of Mixed Topsoil <br />over approximately 24" of Bench 1 spoil. <br />Once spoil has been placed and graded, it will be ripped to at least 24 inches below grade before <br />the Mixed Topsoil placement. Map 2.05.4 -7 shows these areas with the calculated acreage and <br />replacement thicknesses. <br />The calculations for the replacement of the these areas are shown below: <br />Zone 6 (106.8 acres) - Topsoil: 15 to 24 inches (21 in. avg.) of Mixed Topsoil over at least 30 inches <br />of Bench 1 Spoil. <br />Zone 7 (100.6 acres) -Topsoil: 12 to 20 inches (13 in. avg.) of Mixed Topsoil over at least 24 inches <br />of Bench 1 Spoil. <br />Zone 8 is prime farmland soil and is discussed in Subsection 12.1.2. <br />Topsoil Stockpiles #13 of 36,750 cy and proposed Stockpile #22 of 17,890 cy of Mixed Topsoil will <br />be used to reclaim the last 3 cuts of the mining area and Pond 013, once the area has been <br />backfilled from Mount Nucla and the Bench 1 spoil has been placed. Stockpile #21 will be used to <br />Revised September 2010 (PR 06) 2.05.4(2)(d) -36 <br />