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RULE 2 PERMITS <br /> Most of this mapping unit is native range and used for grazing. Present and potential productivity <br /> of this soil is fair. <br /> 28D—Forelle Loam, 3 to 12 Percent Slopes <br /> This is a deep, well drained soil that occurs in very limited areas at the north end of the permit <br /> area. A small area(less than 5 acres) of this series was disturbed by the access road.No additional <br /> activities are planned on areas with this soil series, therefore detailed chemical and physical data <br /> has not been collected for this soil type.The soil developed in mixed aeolian materials and is found <br /> on gently to moderately sloping terraces. The average annual precipitation ranges from 12 to 15 <br /> inches, -the average annual soil temperature is 42°F to 47°F, and the frost-free season is 75 to 95 <br /> days. <br /> Included with this soil in mapping are a few small areas of Yamac and Pinelli soils. <br /> Typically the surface layer is a grayish brown loam about 5 inches thick. The subsoil is a light <br /> brownish gray clay loam about 16 inches thick. The substratum is a light grayish brown loam to a <br /> depth of about 60 inches. <br /> Permeability is slow. The available water capacity is high. Effective rooting depth is 60 inches or <br /> more. Surface runoff is medium, and the erosion hazard is moderate from wind and water. <br /> Most of this mapping unit is cultivated and used for non-irrigated small grains. Present and <br /> potential productivity of this soil is fair. <br /> 32D-Yamac Loam, 5 to 15 Percent Slopes <br /> This is a deep, well drained soil that occurs at the northern edge of the permit area. A portion of <br /> the unit train loadout facility was constructed on an area of this soil series. No additional <br /> disturbances are anticipated on areas with this soil series, therefore detailed data on chemical and <br /> physical characteristics are not presented. The soil developed in weathered sandstone, siltstone and <br /> windlain materials, and is found on upland ridges and benches. The average annual precipitation <br /> ranges from 12 to 15 inches, the average annual soil temperature is 42°to 47°F, and the frost-free <br /> season is 75 to 95 days. <br /> Included with this soil in mapping are a few small areas of Forelle soils. <br /> Typically the surface layer is a pale brown loam about five inches thick. The subsoil is a pale <br /> brown loam about 10 inches thick. The substratum is a pale brown to very pale brown loam to a <br /> depth of about 60 inches. Permeability is moderate. The available water capacity is high. Effective <br /> rooting depth is 60 inches or more. Surface runoff is medium, and the erosion hazard is medium <br /> from wind and water. <br /> Most of this mapping unit is native range and used for grazing. Present and potential productivity <br /> of this soil is fair. <br /> Rule 2 Permits 2.04-47 Revision Date: 12/20/19 <br /> Revision No.: TR-135 <br />