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EXHIBIT C.H.2 <br />KbA-Kibin fine sandy loam, 0 to <br />percent slopes <br />Map Unit Setting <br />Major Land Resource Area. 51 <br />Elevation: 7,500 to 8,500 feet (2,286 to 2,591 <br />meters) <br />Mean annual precipitation: 8 to 12 inches (203 <br />to 305 millimeters) <br />Mean annual air temperature: 39 to 43 degrees <br />F. (4.0 to 6.0 degrees C.) <br />Frost-free period. 85 to 100 days <br />Map Unit Composition <br />Kbin and similar soils: 85 percent <br />Minor components: 15 percent <br />Component Descriptions <br />Kibin soils <br />Landscape. Intermontain basins <br />Landform: Stream terraces <br />Parent material: Loamy over sandy and gravelly <br />alluvium derived from igneous rock <br />Slope. 0 to 3 percent <br />Surface fragments. About 5 percent indurated <br />mixed gravel <br />Depth to restrictive feature. 20 to 40 inches to <br />abrupt textural change <br />Drainage class. Well drained <br />Slowest permeability. .06 to 0.2 in/hr (slow) <br />Available water capacity. About 7.4 inches <br />(moderate) <br />Shrink swell potential.- About 0.1 percent (low) <br />Flooding hazard. None <br />Ponding hazard. None <br />Runoff class. Low <br />Calcium carbonate maximum: About 3 percent <br />Gypsum maximum. None <br />Salinity maximum: About 1 mmhos/cm <br />(nonsaline) <br />Sodium adsorption ratio maximum: About 0 <br />(nonsodic) <br />Ecological site. Valley Bench <br />Potential native vegetation: western wheatgrass, <br />Wyoming big sagebrush, needleandthread, <br />Indian ricegrass, blue grama, bottlebrush <br />squirreltail <br />Land capability subclass (irrigated): 3e <br />Land capability subclass (nonirrigated): 6e <br />Typical Profile. <br />Ap1-0 to 1 inch; fine sandy loam <br />Ap2-1 inch to 3 inches; sandy clay loam <br />Ap3-3 to 9 inches; sandy clay loam <br />Bt-9 to 14 inches; sandy clay loam <br />Btb-14 to 19 inches; loam <br />Btkb1-19 to 27 inches; loam <br />Btkb2-27 to 37 inches; clay loam <br />2Btk-37 to 52 inches; extremely gravelly <br />loamy coarse sand <br />213k-52 to 79 inches; extremely gravelly <br />coarse sand <br />Minor Components <br />Grayco and similar soils <br />Composition: About 5 percent <br />Landscape: Intermontain basins <br />Landform: Alluvial flats <br />Slope. 0 to 2 percent <br />Drainage class. Well drained <br />Flooding hazard: None <br />Ecological site: COARSE LOAMY <br />Stunner and similar soils <br />Composition: About 5 percent <br />Landscape: Intermontain basins <br />Landform. Fan remnants <br />Slope. 1 to 3 percent <br />Drainage class: Well drained <br />Flooding hazard. None <br />Ecological site: COARSE LOAMY <br />Fuertes and similar soils <br />Composition: About 5 percent <br />Landscape: Intermontain basins <br />Landform: Stream terraces <br />Slope. 0 to 2 percent <br />Drainage class: Somewhat poorly drained <br />Flooding hazard: None <br />Ecological site. Valley Bench