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• Interpretation of the analytical results and site-specific characteristics to determine <br />suitability and depth of soils for topsoil materials. <br />This report presents field and laboratory methodology used in the study as well as: <br />• A soil map delineating soil mapping units <br />• Map unit descriptions <br />• Taxonomic unit descriptions <br />• Chemical and physical data <br />• Recommended topsoil salvage depths for each soil series and soil mapping unit <br />• Prime farmland assessment <br />General Nature of the Area <br />The New Horizon Mine soil study area is located within the Colorado Plateau Physiographic <br />Province, Canyon Land Section, in southwest Colorado. It is within USDA Major Land Resource <br />Area 35, Colorado and Green Rivers Plateau (USDA-SCS, 1978). Average elevation is about <br />5,700 feet. <br />Climate <br />The New Horizon Mine soil study area is located in an "ustic-aridic" soil moisture regime and a <br />"mesic" soil temperature regime (Hawn, 1987). <br />The mean annual precipitation ranges from 10 to 14 inches. Were it not for the presence of <br />irrigation water throughout most of the study area, the soils would have soil moisture deficits during <br />(Revised June 2008) 2.04.9-5