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Lincoln County, Colorado <br /> 223—Bankard-Glenberg complex, 0 to 2 percent slopes, occasionally flooded <br /> Map Unit Setting <br /> • National map unit symbol: 2rgs0 <br /> • Elevation: 3,690 to 5,940 feet <br /> • Mean annual precipitation: 10 to 14 inches <br /> • Mean annual air temperature: 48 to 54 degrees F <br /> • Frost-free period: 130 to 170 days <br /> • Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> • Bankard, occasionally flooded, and similar soils: 45 percent <br /> • Glenberg, occasionally flooded, and similar soils: 40 percent <br /> • Minor components: 15 percent <br /> • Estimates are based on observations, descriptions, and transects of <br /> the mapunit. <br /> Description of Bankard, Occasionally Flooded <br /> Setting <br /> • Landform: Flood plains, flood-plain steps <br /> • Down-slope shape: Linear <br /> • Across-slope shape: Linear <br /> • Parent material: Alluvium <br /> Typical profile <br /> • A - 0 to 2 inches: sand <br /> • Bw1 - 2 to 12 inches: sand <br /> • Bw2 - 12 to 28 inches: loamy sand <br /> • C - 28 to 79 inches: stratified sand to clay loam <br /> Properties and qualities <br /> • Slope: 0 to 2 percent <br /> • Depth to restrictive feature: More than 80 inches <br /> • Drainage class: Excessively drained <br /> • Runoff class: Very low <br /> • Capacity of the most limiting layer to transmit water <br /> (Ksat): Moderately high to very high (0.20 to 20.00 in/hr) <br /> • Depth to water table: More than 80 inches <br /> • Frequency of flooding: Occasional <br /> • Frequency of ponding: None <br /> • Calcium carbonate, maximum content: 7 percent <br /> • Gypsum, maximum content: 1 percent <br /> • Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) <br /> • Sodium adsorption ratio, maximum: 2.0 <br /> • Available water supply, 0 to 60 inches: Low (about 3.4 inches) <br /> Interpretive groups <br />