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Custom Soil Resource Report <br /> Cogna <br /> Percent of map unit.4 percent <br /> Hydric soil rating: No <br /> Hollenbeck <br /> Percent of map unit:3 percent <br /> Hydric soil rating: No <br /> Vignolo <br /> Percent of map unit.3 percent <br /> Hydric soil rating: No <br /> Unnamed,steeper slopes <br /> Percent of map unit: 1 percent <br /> Hydric soil rating: No <br /> 129—Cogna loam, 0 to 2 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: hhrx <br /> Elevation: 70 to 150 feet <br /> Mean annual precipitation: 15 to 17 inches <br /> Mean annual air temperature: 61 to 63 degrees F <br /> Frost-free period: 230 to 250 days <br /> Farmland classification: Prime farmland if irrigated <br /> Map Unit Composition <br /> Cogna, loam, and similar soils:85 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Cogna, Loam <br /> Setting <br /> Landform:Alluvial fans <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Fine-loamy alluvium derived from igneous, metamorphic and <br /> sedimentary rock <br /> Typical profile <br /> A -0 to 25 inches: loam <br /> Bk-25 to 38 inches: clay loam <br /> C-38 to 64 inches: loam <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: Low <br /> 14 <br />