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Sanders Gravel Pit <br /> Exhibit B-2:Sod Resources Report and Map <br /> Custom Soil Resource Report <br /> 118—Hahnspeak silt loam, 0 to 5 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: k0jm <br /> Elevation: 6,630 to 7,220 feet <br /> Mean annual precipitation: 20 to 24 inches <br /> Mean annual air temperature: 38 to 41 degrees F <br /> Frost-free period: 30 to 70 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Hahnspeak and similar soils:80 percent <br /> Minor components:20 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Hahnspeak <br /> Setting <br /> Landform:Alluvial fans <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material.Alluvium derived from igneous and sedimentary rock <br /> Typical profile <br /> Al -0 to 7 inches: silt loam <br /> A2- 7 to 12 inches: silt loam <br /> AB1 - 12 to 24 inches: silt loam <br /> AB2-24 to 34 inches: silt loam <br /> Bt1 -34 to 39 inches: silt loam <br /> 2Bt2-39 to 60 inches: gravelly clay loam <br /> Properties and qualities <br /> Slope: 0 to 5 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Drainage class:Well drained <br /> Runoff class: High <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately high (0.21 <br /> to 0.71 in/hr) <br /> Depth to water table:About 24 to 39 inches <br /> Frequency of flooding: RareNone <br /> Frequency of ponding: None <br /> Calcium carbonate, maximum content: 1 percent <br /> Maximum salinity: Nonsaline to very slightly saline(0.0 to 2.0 mmhos/cm) <br /> Available water capacity: High (about 10.1 inches) <br /> Interpretive groups <br /> Land capability classification(irrigated): 5c <br /> Land capability classification(nonirrigated): 5c <br /> Hydrologic Soil Group: C <br /> Ecological site: R048AY241 CO <br /> 25 <br />