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: 75 - Wrayha-Rabbitex-Veatch complex, 45 to 65 percent slopes, very stony Component: Wrayha (35%) The Wrayha component makes up 35 percent of the map unit. Slopes are 45 to 65 percent. This component is on canyons. The parent material consists of localized, marine colluvium derived from sandstone and shale and/or deeply truncated, marine residuum weathered from sandstone and 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-sweg potential is high. 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 F048AY448CO Pinus Edulis- Juniperus Osteosperma/quercus Gambelii ecological site. Nonirrigated land capability classification is 7e. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 8 percent. Component: Rabbitex (20%) The Rabbitex component makes up 20 percent of the map unit. Slopes are 45 to 65 percent. This component is on canyons. The parent material consists of colluvium derived from sandstone and siltstone and/or residuum weathered from sandstone and siltstone. 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 high. Available water to a depth of 60 inches is moderate. 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 2 percent. This component is in the F048AY448CO Pinus Edulis-Juniperus Osteosperma/quercus Gambelii ecological site. Nonirrigated land capability classification is 7e. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 23 percent. The soil has a slightly sodic horizon within 30 inches of the soil surface. Component: Veatch (20%) The Veatch component makes up 20 percent of the map unit. Slopes are 45 to 65 percent. This component is on canyons. The parent material consists of colluvium derived from sandstone and siltstone and/or residuum weathered from sandstone and siltstone. Depth to a root restrictive layer, bedrock, lithic, is 20 to 40 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 2 percent. This component is in the F048AY448CO Pinus Edulis-Juniperus Osteosperma/quercus Gambelii ecological site. 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. USA Natural Resources Survey Area Version: 4 Conservation Service Survey Area Version Date: 12/05/2006 Page 4