2013-02-12_PERMIT FILE - M2013007 (16)

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Map Unit Description— Ridgway Area, Colorado, Parts of Delta, Gunnison, Montrose, and Ouray Counties Minor Components Ellaybee Percent of map unit: 3 percent Landform: Erosion remnants Landform position (two- dimensional): Shoulder, summit Down -slope shape: Convex Across -slope shape: Convex Ecological site: Clayey Saltdesert (R034XY403C0) Badland Percent of map unit: 2 percent Landform: Erosion remnants, hills 802 —Typic Haplocambids, 12 to 60 percent slopes Map Unit Setting Elevation: 4,790 to 6,990 feet Mean annual precipitation: 8 to 14 inches Mean annual air temperature: 49 to 51 degrees F Frost -free period: 140 to 160 days Map Unit Composition Typic haplocambids and similar soils: 70 percent Minor components: 30 percent Description of Typic Haplocambids Setting Landform: Outwash terraces, hills Landform position (two-dimensional): Backslope Landform position (three - dimensional): Side slope, riser Parent material: Sandy and gravelly outwash derived from mixed sources Properties and qualities Slope: 12 to 60 percent Depth to restrictive feature: 41 inches to bedrock (paralithic) Drainage class: Excessively drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in /hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 14 percent Gypsum, maximum content: 1 percent Maximum salinity: Nonsaline to very slightly saline (1.0 to 4.0 mmhos/ cm) Sodium adsorption ratio, maximum: 2.0 Available water capacity: Very low (about 1.5 inches) Interpretive groups Land capability (nonirrigated): 7c USDA Natural Resources Web Soil Survey 10/27/2012 " Conservation Service National Cooperative Soil Survey Page 47 of 63