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Custom Soil Resource Report <br /> Otero County, Colorado <br /> CwA—Cheraw clay loam, 0 to 2 percent slopes, occasionally flooded <br /> Map Unit Setting <br /> National map unit symbol: 2rgry <br /> Elevation: 3,800 to 5,200 feet <br /> Mean annual precipitation: 10 to 14 inches <br /> Mean annual air temperature: 50 to 54 degrees F <br /> Frost-free period. 130 to 170 days <br /> Farmland classification: Prime farmland if irrigated and drained <br /> Map Unit Composition <br /> Cheraw and similar soils: 85 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Cheraw <br /> Setting <br /> Landform: Flood-plain steps <br /> Landform position (two-dimensional): Toeslope <br /> Landform position (three-dimensional): Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Concave <br /> Parent material: Clayey alluvium derived from sedimentary rock over stratified sandy <br /> and silty alluvium derived from sedimentary rock <br /> Typical profile <br /> Ap - 0 to 8 inches: clay loam <br /> Bw- 8 to 19 inches: silty clay loam <br /> Bk- 19 to 32 inches: silty clay <br /> Bkg1 - 32 to 40 inches: clay <br /> 2Bkg2-40 to 52 inches: clay loam <br /> 2Bkg3- 52 to 79 inches: sandy loam <br /> Properties and qualities <br /> Slope: 0 to 2 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Moderately well drained <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately low to <br /> moderately high (0.06 to 0.20 in/hr) <br /> Depth to water table: About 35 to 46 inches <br /> Frequency of flooding: Occasional <br /> Frequency of ponding: None <br /> Calcium carbonate, maximum in profile: 15 percent <br /> Gypsum, maximum in profile: 2 percent <br /> Salinity, maximum in profile: Very slightly saline to slightly saline(2.0 to 6.0 mmhos/ <br /> cm) <br /> Sodium adsorption ratio, maximum in profile: 7.0 <br /> Available water storage in profile: High (about 9.3 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 2w <br /> Land capability classification (nonirrigated). 6c <br /> 35 <br />