2008-09-29_PERMIT FILE - C1981019A (29)

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RULE 2 PERMITS Included with this soil in mapping are a few small areas of Forelle soils. Typically the surface layer is a pale brown loam about five inches thick. The subsoil is a pale brown loam about 10 inches thick. The substratum is a pale brown to very pale brown loam to a depth of about 60 inches. Permeability is moderate. The available water capacity is high. Effective rooting depth is 60 inches or more. Surface runoff is medium, and the erosion hazard is medium from wind and water. Most of this mapping unit is native range and used for grazing. Present and potential productivity of this soil is fair. 33D - Pinelli Loam, 3 to 15 Percent Slopes This is a deep, well drained soil that occurs at the north edge of the permit area. A portion of the railroad loadout loop was constructed on an area of this soil series. No additional disturbances are anticipated in areas of this soil series; therefore, no detailed chemical or physical data has been collected. The soil developed in local reworked alluvium and is found on upland benches and in swells. The average annual precipitation ranges from 12 to 15 inches, the average annual soil temperature is 42°F to 45°F, and the frost-free season is 75 to 95 days. Included with this soil in mapping are few small areas that are 40 to 60 inches over soft shale and small areas of Forelle and Evanston sails on north slopes or slightly steeper areas. Typically the surface layer is a brown loam about 6 inches thick. The subsoil is a yellowish brown heavy clay loam about: 17 inches thick and is calcareous in the lower part. The substratum is; a light yellowish brown clay loam and is calcareous. Permeability is slow. The available water capacity is high. Effective rooting depth is 60 inches or more. Surface: runoff is moderate, and the erosion hazard is moderate from wind and water. Most of this mapping unit is cultivated and used for non-irrigated small grains. Some of the area is native range and is used for grazing. Present and potential productivity of this soil is fair. 101- Torriorthents - Rock Outcrop, Complex This strongly sloping to very steep complex is on terrace and escarpment faces and valley sideslopes throughout the permit area. Soils are extremely variable in this series. Much of the area has parent material to the surface and is not useful for reclamation purposes. Useable solids are found in isolated pockets throughout this series. Because of the variability of the soils in this series, no detailed chemical or physical data has been collected. The average annual precipitation ranges from 13 to 16 inches, the average annual soil temperature is 42°F to 47°F, and the frost=free season is 75 to 95 days. The Torriorthents make up about 50 percent of this complex and occupy small colluvial fans, toeslopes, and areas of weathered shale. The Rock outcrop part makes up about 40 percent of this complex and occupies vertical ledges, ridgetops and steeper sideslopes. Included with this complex in mapping are a few small- areas of exposed shale ledges, with Rock river and Yamac soils in toeslope positions which make -up the other 10 percent. The Torriorthents part consists of shallow to moderately deep, coarse to medium textured, stoney and cobbly, well drained soils over sandstone and shale at depths of 10 to 40 inches. These soils have light colored surface and substratum layers, with moderate to rapid permeability, low available water capacity, a moderate wind erosion hazard, and a high water erosion hazard. Rule 2 Permits 2.04.9-5 Revision Date: 6/23/08 Revision No.: MR-91