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Custom Soil Resource Report <br /> 4—Aquolls and Aquepts, flooded <br /> Map Unit Setting <br /> National map unit symbol: 3621 <br /> Elevation: 3,600 to 4,700 feet <br /> Mean annual precipitation: 12 to 16 inches <br /> Mean annual air temperature: 50 to 55 degrees F <br /> Frost-free period: 100 to 165 days <br /> Farmland classification: Prime farmland if drained and either protected from flooding <br /> or not frequently flooded during the growing season <br /> Map Unit Composition <br /> Aquolls and similar soils: 55 percent <br /> Aquepts, flooded, and similar soils: 25 percent <br /> Minor components: 20 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Aquolls <br /> Setting <br /> Landform: Drainageways, plains, depressions <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Recent alluvium <br /> Typical profile <br /> H1 -0 to 8 inches: variable <br /> H2-8 to 60 inches: stratified sandy loam to clay <br /> Properties and qualities <br /> Slope: 0 to 3 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Poorly drained <br /> Runoff class: Very low <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately low to high <br /> (0.06 to 6.00 in/hr) <br /> Depth to water table: About 6 to 36 inches <br /> Frequency of flooding: Frequent <br /> Frequency of ponding: None <br /> Calcium carbonate, maximum in profile: 10 percent <br /> Salinity, maximum in profile: Moderately saline to strongly saline (8.0 to 16.0 <br /> mmhos/cm) <br /> Sodium adsorption ratio, maximum in profile: 5.0 <br /> Available water storage in profile: Low (about 4.7 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 6w <br /> Land capability classification (nonirrigated): 6w <br /> Hydrologic Soil Group: D <br /> 17 <br />