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Custom Soil Resource Report <br /> San Joaquin County, California <br /> 107—Archerdale clay loam, 0 to 2 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: hhr6 <br /> Elevation: 40 to 130 feet <br /> Mean annual precipitation: 14 inches <br /> Mean annual air temperature: 61 degrees F <br /> Frost-free period. 270 days <br /> Farmland classification: Prime farmland if irrigated <br /> Map Unit Composition <br /> Archerdale 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 Archerdale <br /> Setting <br /> Landform: Fan terraces <br /> Landform position (two-dimensional): Footslope <br /> Landform position (three-dimensional): Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Alluvium from mixed rock sources <br /> Typical profile <br /> A-0 to 8 inches: clay loam <br /> Bw1 -8 to 35 inches: clay <br /> Bw2-35 to 60 inches: clay <br /> Properties and qualities <br /> Slope: 0 to 2 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Well drained <br /> Runoff class: High <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately low to <br /> moderately high (0.06 to 0.20 in/hr) <br /> Depth to water table: More than 80 inches <br /> Frequency of flooding: Rare <br /> Frequency of ponding: None <br /> Salinity, maximum in profile: Nonsaline to very slightly saline(0.0 to 2.0 <br /> mmhos/cm) <br /> Available waterstorage in profile: High (about 9.3 inches) <br /> Interpretive groups <br /> Land capability classification(irrigated): 2s <br /> Land capability classification (nonirrigated): 4s <br /> Hydrologic Soil Group: C <br /> Hydric soil rating: No <br /> Minor Components <br /> Cogna <br /> Percent of map unit. 4 percent <br /> 13 <br />