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Custom Soil Resource Report <br /> San Joaquin County, California <br /> 182—Jahant loam, 0 to 2 percent slopes <br /> Map Unit Setting <br /> National map unit symbol.• hhtm <br /> Elevation: 20 to 100 feet <br /> Mean annual precipitation: 15 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 /> Jahant 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 Jahant <br /> Setting <br /> Landform: 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 derived from mixed rock sources <br /> Typical profile <br /> Ap-0 to 5 inches: loam <br /> Bt-5 to 31 inches: loam <br /> Bt-31 to 49 inches: clay <br /> Bq-49 to 53 inches: cemented <br /> Bqm-53 to 60 inches: indurated <br /> Properties and qualities <br /> Slope: 0 to 2 percent <br /> Depth to restrictive feature: About 31 inches to abrupt textural change; 40 to 60 <br /> inches to duripan <br /> Natural drainage class: Moderately well drained <br /> Runoff class: High <br /> Capacity of the most limiting layer to transmit water(Ksat): Very low(0.00 in/hr) <br /> Depth to water table: More than 80 inches <br /> Frequency of flooding: None <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: Low(about 4.6 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 3s <br /> Land capability classification (nonirrigated): 4s <br /> Hydrologic Soil Group: D <br /> Ecological site: LOAMY CLAYPAN (R017XE104CA) <br /> Hydric soil rating: No <br /> 13 <br />