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Custom Soil Resource Report <br /> Adams County Area, Parts of Adams and Denver Counties, Colorado <br /> AaB—Adena loam, 0 to 3 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: 34vd <br /> Elevation: 4,700 to 5,500 feet <br /> Mean annual precipitation: 12 to 14 inches <br /> Mean annual air temperature: 52 to 55 degrees F <br /> Frost-free period: 120 to 160 days <br /> Farmland classification: Prime farmland if irrigated <br /> Map Unit Composition <br /> Adena and similar soils: 87 percent <br /> Minor components: 13 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Adena <br /> Setting <br /> Landform: Plains <br /> Landform position (three-dimensional): Talf <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Eolian deposits derived from mixed <br /> Typical profile <br /> H1 - 0 to 4 inches. loam <br /> H2-4 to 22 inches: silty clay loam <br /> H3- 22 to 60 inches: silt loam <br /> Properties and qualities <br /> Slope: 0 to 3 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Well drained <br /> Runoff class: Low <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately high (0.20 <br /> to 0.60 in/hr) <br /> Depth to water table: More than 80 inches <br /> Frequency of flooding: None <br /> Frequency of ponding: None <br /> Calcium carbonate, maximum in profile: 15 percent <br /> Available water storage in profile: High (about 10.1 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 2e <br /> Land capability classification (nonirrigated): 4e <br /> Hydrologic Soil Group: C <br /> Ecological site: Loamy Plains (R067BY002CO) <br /> Hydric soil rating: No <br /> Minor Components <br /> Weld <br /> Percent of map unit: 13 percent <br /> Hydric soil rating: No <br /> 25 <br />