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HomeMy WebLinkAbout1620 e brundage _envirotech report 6.22.20_122-126Custom Soil Resource Report Kern County, California, Northwestern Part 180—Kimberlina-Urban land-Cajon complex, 0 to 2 percent slopes Map Unit Setting National map unit symbol: hkjw Elevation: 120 to 4,000 feet Mean annual precipitation: 4 to 9 inches Mean annual air temperature: 63 to 70 degrees F Frost-free period: 190 to 300 days Farmland classification: Not prime farmland Map Unit Composition Kimberlina and similar soils: 35 percent Urban land: 30 percent Cajon and similar soils: 20 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kimberlina Setting Landform: Alluvial fans Landform position (two-dimensional): Footslope Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Parent material: Alluvium derived from igneous and sedimentary rock Typical profile Ap - 0 to 9 inches: fine sandy loam C - 9 to 45 inches: fine sandy loam 2C - 45 to 71 inches: stratified silt loam to sandy clay loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Rare Frequency of ponding: None Calcium carbonate, maximum in profile: 10 percent Salinity, maximum in profile: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water storage in profile: Moderate (about 7.6 inches) Description of Cajon Setting Landform: Alluvial fans Landform position (two-dimensional): Footslope Landform position (three-dimensional): Tread Down-slope shape: Linear 13