2017-02-03_PERMIT FILE - C1980004 (17)

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Appendix L Map Unit Description (Brief, Generated) Douglas -Plateau Area, Colorado, Parts of Garfield and Mesa Counties Map unit: 47 - Hesperus-Empedrado, moist -Pagoda complex 5 to 35 percent slopes Component: Pagoda (20%) The Pagoda component makes up 20 percent of the map unit. Slopes are 5 to 35 percent. This component is on benches, mountains. The parent material consists of colluvium derived from shale. Depth to a root restrictive layer is greater than 60 inches. The natural drainage class is well drained. Water movement in the most restrictive layer is moderately low. Available water to a depth of 60 inches is high. Shrink -swell potential is moderate. This soil is not flooded. It is not ponded. There is no zone of water saturation within a depth of 72 inches. Organic matter content in the surface horizon is about 2 percent. This component is in the R048A Y238CO Brushy Loam ecological site. Nonirrigated land capability classification is 6e. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 10 percent. Map unit: 61 - Rock outcrop-Torriorthents complex, 15 to 90 percent slopes Component: Rock outcrop (65%) Generated brief soil descriptions are created for major soil components. The Rock outcrop is a miscellaneous area. Component: Torriorthents (30%) The Torriorthents component makes up 30 percent of the map unit. Slopes are 35 to 90 percent. This component is on canyons, hills, mountains, ridges. The parent material consists of colluvium derived from sandstone and sittstone and/or colluvium derived from sandstone and shale and/or residuum weathered from sandstone and shale and/or residuum weathered from sandstone and siltstone. Depth to a root restrictive layer, bedrock, lithic, is 5 to 20 inches. The natural drainage class is well drained. Water movement in the most restrictive layer is moderately high. Available water to a depth of 60 inches is very low. Shrink -swell potential is low. This soil is not flooded. It is not ponded. There is no zone of water saturation within a depth of 72 inches. Organic matter content in the surface horizon is about 1 percent. Nonirrigated land capability classification is 7e. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 10 percent. The soil has a slightly saline horizon within 30 inches of the soil surface. Map unit: 65 - Torriorthents, cool -Rock outcrop complex, 35 to 90 percent slopes Component: Torriorthents, cool (50%) The Torriorthents, cool component makes up 50 percent of the map unit. Slopes are 35 to 90 percent. This component is on canyons, ridges, hills, mountains. The parent material consists of colluvium derived from limestone and siltstone and/or colluvium derived from sandstone and shale and/or residuum weathered from limestone and siltstone and/or residuum weathered from sandstone and shale. Depth to a root restrictive layer, bedrock, lithic, is 4 to 60 inches. The natural drainage class is well drained. Water movement in the most restrictive layer is moderately high. Available water to a depth of 60 inches is very low. Shrink -swell potential is low. This soil is not flooded. It is not ponded. There is no zone of water saturation within a depth of 72 inches. Organic matter content in the surface horizon is about 1 percent. Nonirrigated land capability classification is 7e. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 10 percent. The soil has a slightly saline horizon within 30 inches of the soil surface. USDA, Natural Resources Survey Area Version: 4 Conservation Service Survey Area Version Date: 12/05/2006 Page 2