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140 Soil Survey of <br />Chroma -2 or 3 <br />Texture of the fine -earth fraction —silt loam or very <br />fine sandy loam <br />Fine -earth fraction -15 to 27 percent clay <br />Reaction — neutral <br />Bt horizon: <br />Hue -10YR <br />Value -4 to 6 dry, 3 or 4 moist <br />Chroma -2 or 3 <br />Texture of the fine -earth fraction —silty clay loam <br />or silt loam <br />Fine -earth fraction -20 to 35 percent clay <br />Reaction — neutral or slightly alkaline <br />Bk horizon: <br />Hue -10YR <br />Value -6 or 7 dry, 4 or 5 moist <br />Chroma -2 or 3 <br />Texture of the fine -earth fraction —silty clay loam, <br />silt loam, loam <br />Fine -earth fraction -18 to 34 percent clay <br />Calcium carbonate equivalent -3 to 15 percent <br />C horizon: <br />Hue -10YR <br />Value -6 or 7 dry, 5 or 6 moist <br />Chroma -2 to 4 <br />Texture of the fine -earth fraction —silt loam, loam, <br />very fine sandy loam <br />Fine -earth fraction -10 to 26 percent clay <br />Calcium carbonate equivalent -3 to 15 percent <br />Kimst Series <br />Depth class: Very deep <br />Drainage class: Well drained <br />Permeability: Moderate <br />Landform: Hills and plains <br />Parent material: Eolian material over alluvium <br />Slope range: 1 to 15 percent <br />Average annual precipitation :13 to 16 inches <br />Average annual air temperature: 45 to 50 degrees F <br />Frost -free period :145 to 150 days <br />Taxonomic classification: Fine - loamy, mixed, <br />superactive, calcareous, mesic Aridic Ustorthents <br />Typical Pedon <br />Kimst sandy clay loam, in an area of Kimst -Wages <br />sandy clay loams, 1 to 6 percent slopes, about 1,100 <br />feet north and 1,300 feet west of the southeast corner <br />of sec. 29, T. 11 S., R. 49 W.; USGS Big Spring Creek, <br />Colorado, topographic quadrangle; lat. 39 degrees 3 <br />minutes 25 seconds N. and long. 102 degrees 54 <br />minutes 38 seconds W. <br />Ap-0 to 5 inches; light brownish gray (10YR 6/2) <br />sandy clay loam, dark grayish brown (10YR <br />4/2) moist; moderate fine granular structure; <br />slightly hard, firm, slightly sticky and slightly <br />plastic; common very fine and fine roots; <br />strongly effervescent; slightly alkaline; clear <br />smooth boundary. <br />AC -5 to 12 inches; brown (10YR 5/3) sandy clay <br />loam, dark grayish brown (10YR 4/2) moist; weak <br />coarse subangular blocky structure; slightly hard, <br />firm, moderately sticky and moderately plastic; <br />common very fine and fine roots; few very fine <br />vesicular pores; violently effervescent; moderately <br />alkaline; gradual wavy boundary. <br />C -12 to 60 inches; very pale brown (10YR 7/3) sandy <br />clay loam, light yellowish brown (10YR 6/4) moist; <br />massive; slightly hard, firm, slightly sticky and <br />slightly plastic; few very fine roots; common very <br />fine vesicular pores; violently effervescent; <br />moderately alkaline. <br />Range in Characteristics <br />Content of organic matter: 0.5 to 2.0 percent in the Ap <br />horizon <br />A horizon: <br />Hue -10YR <br />Value -5 to 7 dry, 3 to 6 moist <br />Chroma -2 to 4 <br />Texture of the fine -earth fraction —sandy clay <br />loam, loam, clay loam <br />Fine -earth fraction -21 to 31 percent clay <br />Content of rock fragments -0 to 5 percent gravel <br />Calcium carbonate equivalent -5 to 15 percent <br />Reaction — slightly alkaline or moderately alkaline <br />C horizon: <br />Hue -10YR or 7.5YR <br />Value -6 or 7 dry, 5 or 6 moist <br />Chroma -3 to 6 <br />Texture of the fine -earth fraction —loam, clay loam, <br />sandy clay loam <br />Fine -earth fraction -20 to 35 percent clay <br />Content of rock fragments -0 to 10 percent gravel <br />Calcium carbonate equivalent -5 to 15 percent <br />Kitcarson Series <br />Depth class: Very deep <br />Drainage class: Somewhat poorly drained <br />Permeability.: Moderate <br />Landform: Flood plains <br />Parent material: Alluvium <br />Slope range: 0 to 2 percent <br />