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to 0. 11 inches of water per inch of soil), permeability moderate to moderately rapid (about 1.0 to 6.0 inches <br />per hour), and cation exchange capacity low to moderately low (5 to 10 milli - equivalents per 100 grams). <br />Sonce the overburden contains a rrixture of soft, slightly hard, hard, and extreniely hard rock fragnients, <br />the spo I will generally possess acceptable root growth and water holding characteris <br />The chemical properties of the overburden /interburden are also quite favorable. Sodicity and salinity levels <br />are low to moderate in the New Horizon 2 permit area and should pose no severe problem to successful <br />reclamation. Salinity levels in the upper four feet of regraded spcdaench 1 material will likely be <br />comparable to premining values. <br />The uppermost overburden transitions into the subsoil gradually on the majority of the permit area. Much <br />of this upper overburden (also called Bench 1 material) is suitable subsoil. For the area west of 2700 Road, <br />it is standard practice that suitable Bench 1 substitute subsoil material will be used to supplement the <br />subsoil to provide the best chance for reclamation success. The topsoil replacement calculations discussed <br />later in this Section accounts for the use of some of this suitable material. In all areas, Bench 1 is the first <br />spoil below topsoil and subsoil. This is the same as the pre mine conditions. <br />August 2013 (PR -08) 2.05.4(2)(d) -13 <br />