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Custom Soil Resource Report <br /> 68—Ustic Torriorthents, moderately steep <br /> Map Unit Setting <br /> National map unit symbol. 3631 <br /> Elevation: 4,450 to 5,100 feet <br /> Mean annual precipitation: 10 to 16 inches <br /> Mean annual air temperature: 46 to 54 degrees F <br /> Frost-free period. 120 to 160 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Ustic torriorthents 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 Ustic Torriorthents <br /> Setting <br /> Landform: Escarpments, breaks <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Gravelly alluvium <br /> Typical profile <br /> H1 -0 to 10 inches: gravelly sand <br /> H2- 10 to 60 inches: gravelly sand <br /> Properties and qualities <br /> Slope: 9 to 15 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Excessively drained <br /> Runoff class: Low <br /> Capacity of the most limiting layer to transmit water(Ksat): High to very high (5.95 <br /> to 19.98 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: 5 percent <br /> Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 <br /> mmhos/cm) <br /> Available water storage in profile: Very low(about 1.8 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): None specified <br /> Land capability classification (nonirrigated): 7s <br /> Hydrologic Soil Group: A <br /> Hydric soil rating: No <br /> 20 <br />