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Custom Soil Resource Report <br />Pike National Forest, Eastern Part, Colorado, Parts of Douglas, El Paso, <br />Jefferson, and Teller Counties <br />2—Aquolls, 1 to 10 percent slopes <br />Map Unit Setting <br />National map unit symbol. jpj0 <br />Elevation: 6,000 to 13,280 feet <br />Mean annual precipitation: 15 to 25 inches <br />Mean annual air temperature: 28 to 46 degrees F <br />Frost -free period: 20 to 100 days <br />Farmland classification: Not prime farmland <br />Map Unit Composition <br />Aquolls and similar soils: 90 percent <br />Estimates are based on observations, descriptions, and transects of the mapunit. <br />Description of Aquolls <br />Setting <br />Landform: Flood plains, drainageways <br />Landform position (three-dimensional): Tread <br />Down -slope shape: Linear, concave <br />Across -slope shape: Linear <br />Parent material: Alluvium derived from granite and/or gneiss and/or schist and/or <br />sandstone <br />Typical profile <br />Al - 0 to 12 inches: fine sandy loam <br />A2 - 12 to 25 inches: loamy fine sand <br />2Agb - 25 to 50 inches: very fine sandy loam <br />3C - 50 to 60 inches: coarse sand <br />Properties and qualities <br />Slope: 1 to 10 percent <br />Depth to restrictive feature: More than 80 inches <br />Natural drainage class: Poorly drained <br />Runoff class: Low <br />Capacity of the most limiting layer to transmit water (Ksat): Very low to high (0.00 <br />to 6.02 in/hr) <br />Depth to water table: About 0 to 24 inches <br />Frequency of flooding: Frequent <br />Frequency of ponding: None <br />Calcium carbonate, maximum in profile: 5 percent <br />Salinity, maximum in profile: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) <br />Available waterstorage in profile: Moderate (about 6.8 inches) <br />Interpretive groups <br />Land capability classification (irrigated): 5w <br />Land capability classification (nonirrigated): 5w <br />Hydrologic Soil Group: A/D <br />12 <br />