2009-07-06_REVISION - M1977036 (43)

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a EXHIBIT I Soils Information Following is a description of the soils found on the property according to the Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey. Available online at http•//websoilsurvey.nres.usda.gov/. The information was accessed on April 9, 2009. Attached is a map showing the location of the soil categories described below. Aquolls and Aquents, gravelly substratum Aquolls Slopes are 0 to 3 percent. This component is on swales, streams, flood plains. The parent material consists of recent alluvium. Depth to a root restrictive layer is greater than 60 inches. The natural drainage class is poorly 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 frequently flooded. It is not ponded. A seasonal zone of water saturation is at 27 inches during March, April, May, June, and July. Organic matter content in the surface horizon is about 2 percent. This component is in the R067BY035CO Salt Meadow ecological site. Nonirrigated land capability classification is 6w. This soil meets hydric criteria. Aquents, gravelly substation Slopes are 0 to 3 percent. This component is on stream terraces. The parent material consists of recent alluvium. Depth to a root restrictive layer is greater than 60 inches. The natural drainage class is poorly 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 frequently flooded. It is not ponded. A seasonal zone of water saturation is at 15 inches during March, April, May, June, July, August, and September. Organic matter content in the surface horizon is about 1 percent. This component is in the R067BY035CO Salt Meadow ecological site. Nonirrigated land capability classification is 6w. Irrigated land capability classification is 6w. This soil meets hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 5 percent. The soil has a very slightly saline horizon within 30 inches of the soil surface. Fort Collins loam, l to 3 percent slopes Slopes are 1 to 3 percent. This component is on plains, terraces. The parent material consists of alluvium and/or modified by thin eolian deposits. 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 high. 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 R067BY002CO Loamy (formerly Loamy Plains) ecological site. Nonirrigated land capability classification is 4c. Irrigated land capability classification is 2e. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 10 percent. Greeley 35`h Avenue Mine (M-1977-036) DRMS 112 Reclamation Permit Amendment Application Page 11 of 12