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Permeability is variable but is expected to be mainly moderate or <br />r • moderatoly rapid. Effecting rooting depth is variable because of <br />~~ varying depths to strongly acidic layers. Available water capacity <br />also varies. Runoff is medium to very rapid, and erosion is moderate <br />to very high. <br />In many areas the soils consist of 20 to 90 percent soft shale and <br />sandston• chips. The color of the soils is often highly mixed because <br />of the mixing of various materials. Important dry colors include <br />grayish brown, light brownish gray, and brown. Black or grayish brown <br />shale chips era very common. The top layer in a few areas is pale <br />yellow sandy loam with sandston• chips of th• sam• color. Thes• soils <br />are dominantly nonsaline or slightly saline. However, areas <br />immediately adjacent to drainagaways are often saline. The premixed <br />spoil sometimes includes a relatively high content of sulfur in such <br />~• forms as pyrite. The extant to which the sulfur may result in <br />additional acidity or salinity of these mixed soils is not known. <br />Short cliffs of sandstone or of sand-and-gravel border the <br />delineations in some areas. A few small areas of shallow soils and <br />minute areas of sandstone outcrop era also included. Also included <br />are a few areas of undisturbed native soils that are generally about 2 <br />to 5 acres in size. These soils include Kim, Sedillo, and 7ravessilla <br />soils. <br />Naw drainagaways have been constructed in this mapping unit. <br />These include soma small ponds about one-half acre or less in size. <br />Vary small groups of boulders have also bean placed on the surface at <br />a few spots. Shallow basins about 1/8 acre in size were constructed <br />at widely-spaced intervals to catch runoff and improve the survival <br />I • rata of tree, shrub, and forb plantings. <br /> <br />H~. <br />