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1 <br />t <br />T880161 <br />~I ' Veldkamp-Nederland. Very cobbly sandy loamy. 0 to 3 percent slopes -- This soil type is <br />formed on the lower pediment surface adjacent to the site. Both the Veldkamp and <br />' Nederlar.~d soils are deep and well drained. They both formed in cobbly, gravelly, loamy <br />alluvium derived from mixed sources. <br />' The Veldkamp surface layer is usually neutral, dark grayish brown very cobbly sandy <br />loam about 3 inches thick. The subsoil in the upper 9 inches is neutral dark grayish <br />' brown and brown to dark brown, very cobbly clay loam and very cobbly clay. In the <br />lower 9 inches it is neutral dark yellowish brown very cobbly clay loam. The sub- <br />, stratum to a depth of 60 inches is neutral, dark yellowish brown, stratified very cobbly <br />sandy loam. Rock fragments make up 35 to 60 percent of total volume. <br />' The Ned<:rland surface is typically dark brown to brown, very cobbly sandy loam about <br />52 inches thick. The substratum below a depth of 62 inches is neutral, strong brown <br />very stony sandy loam. Rocks compose 35 to 75 percent of total volume. <br />Permeability of both soils is moderate to slow and available water capacity is moderate. <br />The effective rooting depth is 60 inches or more. Runoff is slow and water erosion <br />' hazard is slight. <br />' The establishment and maintenance of grasses is limited by the large volume of pebbles <br />and cobbles, which will be removed prior to revegetation. Mulching, fertilizing, and <br />irrigation are needed to establish adapted plants. <br />' Valmont cl~ loam. 0 to 3 percent slopes -- This unit is found on the main pediment <br />surface on site. It formed in calcareous, clayey alluvium underlain by calcareous, very <br />cobbly or €;ravelly material. <br />^ Typically, the surface layer is neutral grayish brown clay loam about 4 inches thick. <br />' The subsoil in the upper 13 inches is neutral to moderately alkaline, dark grayish brown <br />and brown clay. In the lower 14 inches it is moderately alkaline, pale brown clay and <br />clay loam. The substratum, to a depth of 60 inches, is a moderately alkaline light gray <br />1 <br />-35- <br />