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Topsoil Stripping <br />As used in this Permit Application, topsoil means the lower portions of the diagnostic A <br />horizon and the uppermost portion of the B horizon as defined in Rule 4.21.4(5) and rule <br />4.25.3(1)(A) & (B). Subsoil corresponds to the lower portions of the diagnostic B <br />horizon and C horizon. The topsoil stripping procedures for the proposed NHN Mine <br />Area will be performed as follows: The topsoil thicknesses for the soils in the NHN <br />Mine Area are relatively shallow, and due to the size of the equipment used, it is <br />proposed that topsoil and subsoil be combined into one salvageable layer of topsoil for <br />stripping and respreading. It is very difficult to strip thin layers of topsoil using such large <br />equipment. The average stripping thickness for the combined horizons is depicted in the <br />table found on Map 2.04.9 -3, New Horizon North Mine — Topsoil Salvage Map. The <br />mine foremen and equipment operators will be trained on the stripping of the combined <br />horizon soils and will know to stop the removal when coarse fragments extend to the <br />upper limit of 20 % by volume as directed by the DRMS and as estimated in the field on <br />the field pedon descriptions and which are shown on Map 2.04.9 -3, New Horizon North <br />Mine — Topsoil Salvage. The table on this map shows the average areas and volumes <br />obtained from each soil mapping unit sampled. The volume of topsoil to be stockpiled is <br />estimated at 220,000 bank cubic yards of which approximately 60,000 bank <br />cubic yards will be the Progresso soils from the Garvey property which will be stored in a <br />separate pile. See Map 2.05.3(3) -3 for approximate pile configurations and slopes. <br />On the Garvey property on the Intensively Managed Irrigated Pasture areas <br />corresponding to the more productive Progresso (PRO 81 & PRO 82) soils corresponding <br />to soil polygons 34, 39 and 42, as shown on Map 2.04.3, Land Use Map and Map 2.04.9- <br />3, Topsoil Salvage Map would be salvaged separately and stockpiled separately from the <br />(78 PIN) soils found in soil polygon 38. In addition, to enhance the potential <br />productively of the proposed Intensively Managed Irrigated Pasture (IMIP) reclaimed <br />areas which will be largely located downslope and to the west of the relocated Second <br />Park Lateral ditch, the Progresso (PRO 81) soils currently located in soil polygon 35 east <br />of the Second Park Lateral ditch would be salvaged and reapplied to the proposed area of <br />Section 2.05.4(2)(d) Page 12 January 2012 <br />