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Map Unit Description:Arvada clay loam,0 to 2 percent slopes---Golden Area,Colorado,Parts Golden Mine <br /> of Denver,Douglas,Jefferson,and Park Counties <br /> Golden Area, Colorado, Parts of Denver, Douglas, <br /> Jefferson, and Park Counties <br /> 6—Arvada clay loam, 0 to 2 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: jppk <br /> Elevation: 5,200 to 6,500 feet <br /> Mean annual precipitation: 13 to 17 inches <br /> Frost-free period: 126 to 142 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Arvada, rarely flooded, 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 Arvada, Rarely Flooded <br /> Setting <br /> Landform: Flood plains, terraces <br /> Landform position (three-dimensional):Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Clayey alluvium derived from calcareous shale <br /> Typical profile <br /> H1 - 0 to 6 inches: clay loam <br /> H2- 6 to 30 inches: clay, silty clay <br /> H2- 6 to 30 inches: clay loam, silty clay loam <br /> H3- 30 to 60 inches: <br /> H3-30 to 60 inches: <br /> Properties and qualities <br /> Slope: 0 to 2 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Drainage class:Well drained <br /> Runoff class: High <br /> Capacity of the most limiting layer to transmit water <br /> (Ksat): Moderately low to 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 /> Calcium carbonate, maximum content. 10 percent <br /> Gypsum, maximum content:4 percent <br /> Maximum salinity. Slightly saline to strongly saline (4.0 to 16.0 <br /> mmhos/cm) <br /> Sodium adsorption ratio, maximum:25.0 <br /> Available water capacity:Very high (about 14.0 inches) <br /> USDA Natural Resources Web Soil Survey 2/17/2021 <br /> �� Conservation Service National Cooperative Soil Survey Page 1 of 3 <br />