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Custom Soil Resource Report <br /> Weld County, Colorado, Southern Part <br /> 69—Valent sand, 0 to 3 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: 2tczd <br /> Elevation: 3,000 to 5,210 feet <br /> Mean annual precipitation: 13 to 20 inches <br /> Mean annual air temperature: 48 to 52 degrees F <br /> Frost-free period: 130 to 166 days <br /> Farmland classification: Farmland of local importance <br /> Map Unit Composition <br /> Valent 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 Valent <br /> Setting <br /> Landform: Interdunes <br /> Landform position (two-dimensional): Footslope, toeslope <br /> Landform position (three-dimensional): Base slope <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Noncalcareous eolian sands <br /> Typical profile <br /> A -0 to 5 inches: sand <br /> AC- 5 to 12 inches: sand <br /> C1 - 12 to 30 inches: sand <br /> C2-30 to 80 inches: sand <br /> Properties and qualities <br /> Slope: 0 to 3 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Drainage class: Excessively drained <br /> Runoff class: Negligible <br /> Capacity of the most limiting layer to transmit water(Ksat): High to very high (6.00 <br /> to 39.96 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 content: 1 percent <br /> Maximum salinity: Nonsaline (0.1 to 1.9 mmhos/cm) <br /> Available water supply, 0 to 60 inches: Very low(about 2.4 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 4e <br /> Land capability classification (nonirrigated): 6e <br /> Hydrologic Soil Group: A <br /> Ecological site: R067BY015CO - Deep Sand, R072XA021 KS - Sands (North) (PE <br /> 16-20) <br /> Hydric soil rating: No <br /> 13 <br />