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Map Unit Description:Tinnin loamy coarse sand,0 to 2 percent slopes---San Joaquin County, <br /> California <br /> San Joaquin County, California <br /> 255—Tinnin loamy coarse sand, 0 to 2 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: hhwz <br /> Elevation: 20 to 70 feet <br /> Mean annual precipitation: 11 inches <br /> Mean annual air temperature: 61 degrees F <br /> Frost-free period: 270 days <br /> Farmland classification: Farmland of statewide importance <br /> Map Unit Composition <br /> Tinnin and similar soils: 85 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of <br /> the mapunit. <br /> Description of Tinnin <br /> Setting <br /> Landform: Alluvial fans <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 granitic rock sources <br /> Typical profile <br /> A - 0 to 28 inches: loamy coarse sand <br /> C1 -28 to 53 inches: loamy coarse sand <br /> C2- 53 to 75 inches: loamy coarse sand <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: Negligible <br /> Capacity of the most limiting layer to transmit water(Ksat): High to <br /> very high (5.95 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 /> Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 <br /> to 2.0 mmhos/cm) <br /> Available water storage in profile: Low (about 3.9 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 3s <br /> Land capability classification (nonirrigated): 4s <br /> Hydrologic Soil Group: A <br /> Hydric soil rating: No <br /> usDn Natural Resources Web Soil Survey 10/21/2019 <br /> Conservation Service National Cooperative Soil Survey Page 1 of 2 <br />