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<br /> <br />EXHIBIT I <br />Soils Information <br />An investigation into the soils types in the western expansion area has determined similar <br />conditions as were found in the current pit area. According to the Soil Survey of Routt Area, <br />Colorado (United States Department of Agriculture, Soil Conservation Service), there are two <br />major soil types within the project site: <br />1. 7C - Morapos loam, 3 to 12 percent slopes <br />2. 102 - Shermap loam, cool, 40 to 65 percent slopes <br />The location of these soil types is illustrated on Exhibit I-1 (Soils Map). <br />Morapos Loam, 3 to 12 percent slopes <br />The Morapos component occupies the majority of the proposed amended permit area. Slopes are <br />3 to 12 percent. This component is on hills. The parent material consists of eolian deposits and/or <br />slope alluvium over residuum weathered from shale. Depth to a root restrictive layer is greater <br />than 60 inches. The natural drainage class is well drained. Water movement in the most <br />restrictive layer is moderately low. Available water to a depth of 60 inches is high. Shrink-swell <br />potential is high. This soil is not flooded. It is not ponded. There is no zone of water saturation <br />within a depth of 72 inches. Organic matter content in the surface horizon is about 3 percent. <br />This component is in the R034XY292CO Deep Loam ecological site. Nonirrigated land <br />capability classification is 4e. Irrigated land capability classification is 4e. This soil does not <br />meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not <br />exceed 10 percent. The soil has a slightly sodic horizon within 30 inches of the soil surface. <br />Shermap loam, cool, 40 to 65 percent slopes <br />The Shermap, cool component occupies a small portion of the proposed amended permit area. <br />Slopes are 40 to 65 percent. This component is on hills. The parent material consists of 'eolian <br />deposits derived from sandstone and shale and/or slope alluvium derived from sandstone. Depth <br />to a root restrictive layer is greater than 60 inches. The natural drainage class is well drained. <br />Water movement in the most restrictive layer is moderately high. Available water to a depth of <br />60 inches is high. Shrink-swell potential is moderate. This soil is not flooded. It is not ponded. <br />There is no zone of water saturation within a depth of 72 inches. Organic matter content in the <br />surface horizon is about 2 percent. This component is in the R048AY238CO Brushy Loam <br />ecological site. Nonirrigated land capability classification is 6e. This soil does not meet hydric <br />criteria. <br />Camilletti Pit <br />DRMS 112 Permit Amendment <br />Page 12