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w- ingsnounwnoi�, <br /> 10 <br /> The soils in this map unit are suitable for <br /> topsoil; thickness of suitable material ranges <br /> from 20 to 40 inches, with an average of 30 <br /> inches. <br /> 2. Garlet family very stony loam, 35 to 75 percent <br /> slopes. <br /> This map unit is found on convex mountain <br /> sideslopes. Included in the mapping are small <br /> areas of rock outcrop and soils with bedrock <br /> within 20 inches. The presence of numerous <br /> rock fragments, both on the soil surface and <br /> throughout the profile, makes the soils in this <br /> map unit unsuitable for topsoil. <br /> Soil Analysis. The results of soil analyses are shown in Table 34. The soils <br /> are generally very strongly acid, coarse textured, and low in soluble salts. <br /> Organic matter levels are high and decrease with depth. There are no <br /> limitations for topsoil suitability in either soil on the basis of the <br /> characteristics for which analyses were conducted. <br /> Topsoil Volume Estimates. The Garlet family soils are not considered <br /> salvageable for topsoil because of large amounts of rock fragments, both on <br /> the surface and throughout the profile. Using the information in Table 33 as <br /> a basis, approximately 1,800 linear feet of suitable materials exist on the <br /> site. If the Bassel soils have an average strippable depth of 30 inches and <br /> the width of disturbance is 50 feet, approximately 8,333 cubic yards of <br /> suitable material exist on the site. This volume of material is sufficient to <br /> cover a 4,200 ft. x 50 ft. corridor with approximately 13 inches of material. <br />