2007-09-11_REVISION - M1997054 (2)

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Shama loam, 0 to 3% slopes Well drained soils forming on stream terraces in alluvial parent materials are characteristic of this unit. This unit will be slightly disturbed from the gravel operations. The Shanta loam makes up approximately 85% of the unit. Representative textures for this soil series include loam surface and upper subsoil horizons over stratified sandy loam and loamy sand lower subsoil textures. This soil is mildly to moderately alkaline, slightly to strongly effervescent and has a coarse fragment content less than 15% throughout the profile. The effective rooting depth is 60" or more. This soil isnon-saline and nonsodic. The hazard of water erosion is slight. Ustic Torriorthents, bouldery-Rock outcrop complex, 35 to 90% slopes This map unit occurs on mountainsides near the eastern bolder of the permit area and is not proposed to be disturbed. The Ustie Torriorthents typically make up 55% of the unit while the rock outcrop portion overlies 30% of the unit. These components are intermingled on the side slopes. The Ustic Torriorthents are typically very shallow to moderately deep, well to excessively drained soils forming in residuum and colluvium from gneiss and granite parent materials. These soils are characterized by very gravelly loam and gravelly clay loam textures, varying effervescence, and neutral to moderate alkalinity. The coarse fragment content ranges from 25 to 40% throughout the profile. The effective rooting depth is 4 to 30" or more. This soil isnon-saline and non-sodic. The hazard of water erosion is high to very high. Field Investigations The SCS survey completed for portions of Fremont County was reviewed by Cedar Creek Associates (4/97) to become familiar with the general edaphic characteristics of the project area. Following the review of existing information, field studies were completed by Cedar Creek (4/97) and Azurite, Inc. (11/97). The proposed project area was traversed to become familiar with access routes and surficial soil conditions characteristic of the site as influenced by topography, vegetation, and geology. Each SCS map unit proposed for disturbance was located on the ground. Within each unit, transects were walked to determine overall map unit characteristics and to select a sample point characteristic of the dominant soil of the unit. At each sample point, the surface soil was evaluated to a depth between 12 to 18" or to bedrock if such occurred within these depths and soil parameters were assessed, including: texture, percent coarse fragment content (by volume), effervescence, and pH. Below the surface horizons, soils were excavated a depth of 5', bedrock, or auger refusal to determine general soil depths and characteristics. General information recorded at each sample site included vegetation characteristics, physiography, slope, and aspect. Five samples (S-1 through S-5) were collected and were sent to the Soil and Plant Testing Laboratory on the Colorado State University campus for analysis of pH, texture (field method), percent organic matter, NH4-N and N03-N (ppm), phosphorus (ppm), potassium (ppm), electrical conductivity (mmhos/cm) and lime estimate. The following discussion is based on this site-specific analysis. Laboratory data sheets depicting results of the analysis of samples are included at the end of this exhibit. Front Range Aggregates, LLC- Parkdale Quarry DMG 772 Permit Amendment Page 37