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Table I-2 <br /> S Map Unit Description—San Miguel Area,Colorado,Parts of Dolores,Montrose, <br /> and San Miguel Counties <br /> . <br /> Maximum salinity:Nonsaline(0.0 to 2.0 mmhos/cm) <br /> Sodium adsorption ratio, maximum: 10.0 <br /> • <br /> • Available water capacity:High(about 10.1 inches) <br /> Interpretive groups <br /> Land capability(nonirrigated):4e <br /> • Ecological site:Loamy Foothills(R034XY284C0) <br /> Typical profile <br /> 0 to 3 inches:Loam <br /> 3 to 14 inches:Loam <br /> 14 to 28 inches:Loam <br /> 28 to 60 inches:Sandy clay loam <br /> Minor Components <br /> Evanston <br /> Percent of map unit:5 percent <br /> Progresso <br /> Percent of map unit:5 percent <br /> Ackmen <br /> Percent of map unit:5 percent <br /> 75—Pinon-Bowdish-Progresso Warns, cool, 1 to 12 percent . <br /> 1111/ slopes <br /> Map Unit Setting . <br /> Elevation:6,800 to 7,400 feet <br /> Mean annual precipitation: 13 to 15 inches <br /> Mean annual air temperature:45 to 47 degrees F <br /> Frost-free period:90 to 120 days <br /> Map Unit Composition <br /> Pinon, cool, and similar soils:35 percent <br /> • Bowdish, cool, and similar soils:30 percent <br /> . Progresso, cool, and similar soils:20 percent <br /> Minor components: 15 percent . <br /> Description of Pinon,Cool <br /> Setting <br /> Landform:Mesas, ridges <br /> Down-slope shape:Linear <br /> Across-slope shape:Linear <br /> Parent material:Residuum weathered from interbedded sandstone <br /> and shale <br /> Properties and qualities <br /> Slope: 1 to 12 percent <br /> Depth to restrictive feature: 10 to 20 inches to lithic bedrock <br /> Drainage class:Well drained <br /> Capacity of the most limiting layer to transmit water <br /> IP <br /> (Ksat):Moderately low to moderately high(0.06 to 0.20 in/hr) <br /> usDANatural Resources Web Soil Survey 51412011 <br /> iiiiiii Conservation Service National Cooperative Soil Survey Page 5 of 9 <br />