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RULE 2 PERMITS <br /> <br />Rule 2 Permits 2.04-50 Revision Date: 11/1/21 <br /> Revision No.: TR-150 <br />Typically the surface layer is a light brownish gray silty clay loam about 3 inches thick. The <br />substratum is a light brownish gray silty clay and overlies soft Mancos shale at a depth of 28 <br />inches. <br /> <br />Permeability is slow and available water capacity is low. Surface runoff is rapid, and erosion <br />hazard is moderate. <br /> <br />Moyerson soil is a shallow, well drained soil. It is formed in residuum in Mancos shale. <br /> <br />Typically the surface layer is a light gray silty clay loam about 1 inch thick. The underlying <br />material is a light brownish gray gravelly, silty clay loam and overlies soft Mancos shale at a depth <br />of 17 inches. <br /> <br />105 – Kemmerer-Moyerson Silty Clay Loams <br /> <br />Permeability is slow and available water capacity is low. Surface runoff is rapid and erosion hazard <br />is high. Most of this unit is native range and used for grazing. Present and potential productivity <br />is poor. <br /> <br />X110-Kemmerer-Yamac complex <br /> <br />A small area (about 5 acres) of this soil complex was disturbed during construction of the access <br />road and the Colowyo administration building. <br /> <br />No additional disturbance is anticipated in areas of this soil complex, and no detailed chemical or <br />physical data have been collected. <br /> <br />The Yamac soil is a deep, well drained soil forming in loess and sandstone residiuum at a depth of <br />20 to 60 inches. <br /> <br />Typically the surface layer is pale brown loam about 5 inches thick. The subsoil is a pale brown <br />loam about 10 inches thick. The substratum is calcareous, very pale brown loam or light clay loam. <br /> <br />The Yamac soil has moderate permeability and the available water capacity is high. The effective <br />rooting depth is 60 inches or more. Surface runoff is moderately low, and erosion hazard is slight <br />from wind and moderate from water. <br /> <br />Most of this complex is native range and used for grazing. Present and potential productivity is <br />poor. <br /> <br />RL-Rock Outcrop <br /> <br />About 70 percent of the surface consists of barren rock exposures. Weakly developed coarse or <br />medium textured soils and talus slopes make up the remaining 30 percent. The major portion of <br />the unit is sandstone. A small area of this series has been disturbed as a source for road surfacing <br />material near the north edge of the lease. No additional disturbance is anticipated, and no detailed