Laserfiche WebLink
6.3.2 EXHIBIT B- Site Description <br /> (a) Vegetation and Soils <br /> Soils–There are two soils types that will be affected by the mining operation. The Brown Quarry <br /> and most of the new road to the quarry is in the Torriorthents-Rock outcrop complex, 45 to 95 <br /> percent slopes. The Yard in located in the Earsman-Rock outcrop complex, 12 to 65 percent <br /> slopes. <br /> 33—Earsman-Rock outcrop complex, 12 to 65 percent slopes <br /> Map Unit Setting <br /> National map unit symbol:jq5n <br /> Elevation:6,000 to 8,500 feet <br /> Mean annual precipitation: 14 to 16 inches <br /> Mean annual air temperature:42 to 44 degrees F <br /> Frost-free period:80 to 105 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Earsman and similar soils:45 percent <br /> Rock outcrop:35 percent <br /> Minor components:20 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Earsman <br /> Setting <br /> Landform: Mountains <br /> Landform position(three-dimensional):Mountainflank, mountaintop <br /> Down-slope shape:Convex <br /> Across-slope shape:Convex <br /> Parent material:Colluvium derived from calcareous sandstone and/or residuum weathered from <br /> calcareous sandstone <br /> Typical profile <br /> H1 -0 to 5 inches:very stony sandy loam <br /> H2-5 to 19 inches:very channery sandy loam <br /> H3- 19 to 23 inches: unweathered bedrock <br /> Properties and qualities <br /> Slope: 12 to 65 percent <br /> Depth to restrictive feature:6 to 20 inches to lithic bedrock <br /> Natural drainage class:Somewhat excessively drained <br /> Runoff class:Very high <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately low to moderately high (0.06 <br /> to 0.20 in/hr) <br /> Depth to water table: More than 80 inches <br /> Frequency of flooding: None <br /> Frequency of ponding:None <br /> Calcium carbonate, maximum in profile: 10 percent <br /> Salinity, maximum in profile: Nonsaline to slightly saline(0.0 to 4.0 mmhos/cm) <br /> Available water storage in profile: Very low(about 1.1 inches) <br /> Interpretive groups <br /> Land capability classification(irrigated): None specified <br /> Land capability classification(nonirrigated):7e <br /> Hydrologic Soil Group: D <br /> Other vegetative classification: PIYON-JUNIPER (null_15) <br /> Hydric soil rating: No <br />