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The resultant loamy textured spoil will possess suitable physical qualities which are conducive <br />to plant growth. The available water holding capacity will likely be moderately low to moderate <br />(approximately 0.07 to 0.11 inches of water per inch of soil), permeability moderate to <br />moderately rapid (about 1.0 to 6.0 inches per hour), and cation exchange capacity low to <br />moderately low (5 to 10 milli-equivalents per 100 grams). Since the overburden contains a <br />mixture of soft, slightly hard, hard, and extremely hard rock fragments, the spoil will generally <br />possess acceptable root growth and water holding characteristics. <br />The chemical properties of the overburden/interburden are also quite favorable. Sodicity and <br />salinity levels are low to moderate in the New Horizon 2 permit area and should pose no severe <br />problem to successful reclamation. Salinity levels in the upper four feet of regraded spoil will <br />likely be comparable to premining values. <br />New Horizon Mine Topsoil Management Plan <br />The New Horizon Mine topsoil management plan, based upon the detailed soil survey contained <br />• in Section 2.04.9, was developed to insure that the most suitable topsoil within the disturbance <br />area is salvaged. The management plan evaluates the topsoil resources and describes salvage <br />depths and techniques, storage, redistribution, and maintenance or testing procedures <br />necessary to restore the disturbed areas to the desired postmine land use. <br />Evaluation of Topsoil Resources. The soils found in the New Horizon 2 Mine permit area are <br />typical of soils found in the semi-arid Colorado Plateau Physiographic Province, Canyon Land <br />Section. The soils within the New Horizon 2 Mine disturbance area Support either paStUrel2nd, <br />hayland, or wildlife habitat. Hayland soils are predominantly moderately deep (20 to 40 inches) <br />to deep (40 to 60 inches) and have developed in local eolian, alluvial and slopewash colluvial <br />materials. Most of the hayland soils are UStoIIIC Haplargids, UstiC CalClargidS, Ustic <br />Haplocalcids or Ustic Haplocambids . The pastureland soils are typically shallow (10 to 20 <br />inches) and have developed in residuum from sandstone. The pastureland soils are Lithic <br />Hapfargids, shallow Typic Haplargids, Lithic Usto(lic Calciorthids, shallow Typic Haplocalcids, <br />and Lithic Ustic Torriorthents. Also found in the study area are Aquolls and Endoaquepts. <br />• (Revised s-aa-zoom 2.05.4(2)(d)- 7 <br />