2009-07-15_PERMIT FILE - M2009002

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EXHIBIT I LUSK PIT #36 SOILS INFORMATION -7 c? P444c,,e?+C,iq 6??I -- g 218 5 So« ,4n pR o pasEJ Slr 6- ,{/-/?^/Y 0 J 1. k r Campo Series: Campo Series consists of deep, nearly level, moderately dark-colored clay loams. These soils occur on uplands in all parts of Baca County. In a typical profile, the surface layer (which is about 4" thick) is light brownish-gray clay loam that is easily worked. The subsoil is brown clay, silty clay, and silty clay loam about 30" thick. It is free of lime in the upper 14 inches. The lower part has lime spots and is calcareous. Below a depth of about 40" is a very pale brown silty clay loam that is very strongly calcareous. Campo soils are well-drained. They absorb water slowly and have a high available water capacity. Because the slopes are nearly level and concave, these soils receive a small amount of extra moisture from surface runoff from surrounding soils. Potter Series: The Potter Series consists of shallow, gently sloping to undulating, light- colored gravelly loams. They are underlain by caliche and occur in all parts of the county. In a typical profile, the surface layer (which is about 8" thick) is grayish-brown, gravelly loam. It is underlain by caliche. Potter soils absorb water well, but since they are shallow, available water capacity is low. Runoff is medium. These soils are susceptible to soil blowing and water erosion. / Wages Loam: Wages soil is deep and well-drained. It formed an alluvium on terraces. Typically, the surface loam is 4" thick. The subsoil is clay loam 8" thick. The underlying material is clay loam to a depth of 60" or more. Permeability is moderate. Available water capacity is high. Effective rooting depth is 60" or more. Runoff is slow to medium. The hazard of wind erosion is moderate to high. Slopes range from 0 to 3 percent. This soil is subject to rare flooding. Wiley Series: The Wiley Series consists of deep, nearly level to strongly sloping, light- colored loams on less-mantled uplands in nearly all parts of the county. In a typical profile, the surface layer is light brownish-gray loam about 5" thick. The upper part is grayish-brown, slightly calcareous silty clay loam, and the lower half is pale brown, strongly calcareous silt loam. The subsoil is hard when dry, but friable when moist. The underlying material is pale brown silt loam that is friable, contains lime, and is easily penetrated by plant roots. Wiley soils are naturally well-drained. These soils are moderately permeable and have high available water capacity. They are high in natural fertility, but are susceptible to both soil blowing and water erosion. Wiley Loam, 3 to 5 percent slopes (WIC): This soil occurs mainly in the northern half of the county. It has a profile similar to that described as typical for the series except that the subsoil is light clay loam that is about 8" thick. The subsoil is slightly calcareous. pppRox. 2 0% off, 8