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The Travessilla soil is forming in residuum primarily from sandstone and comprises <br />approximately 35 % of this unit. This soil is typically channery sandy barns and sandy barns to <br />hard sandstone bedrock at 9". It is non- to strongly effervescent, mildly alkaline, nonsaline, and <br />nonsodic. The effective rooting depth is 4 to 20". The hazazd of water erosion is very high. <br />Otero fine sandy loam, 3 to 8% slopes <br />This map unit consists of well drained soils forming in alluvium and eolian pazent materials on <br />side slopes and fans. This map unit is not proposed to be disturbed. The Kim soil, about 95 <br />percent of the unit, is characterized by loamy fine sand and fine sandy loam textures, strong <br />effervescence, and moderate alkalinity to a depth of 60". The coarse fragment content less than 5 <br />throughout the profile. The effective rooting depth is 60" or more. This soil is non-saline and <br />non-sodic. The hazard of water erosion is slight to high. <br />Nunn clay loam, 0 to 2% slopes <br />This map unit consists of well drained soils forming on fans and fan tenaces in Bess and <br />alluvium and is will be disturbed by the gravel operations. The Nunn soil, making up about 90 <br />of the unit, is typically characterized by clay loam textures to a depth of 60". This soil is neutral <br />to moderately alkaline, non- to strongly effervescent, and has a coarse fragment content less than <br />5 % throughout the profile. The effective rooting depth is 60" or more. This soil is non-saline <br />and non-sodic. The hazard of water erosion is slight. <br />Riverwash <br />The Riverwash unit occurs along the borders of Tallahassee Creek in the northern half of the <br />project area and would have limited disturbance from the haul road. Typically, the majority of <br />this map unit is barren and consists of alluvial sand, gravel, and cobbles which are subject to <br />scouring and alluvial deposition. Deeper soils occur as a part of this unit in small defined areas. <br />The soils of this unit are non-saline and non-sodic. <br />Royal Gorge very gravelly sandy clay loam, 25 to 50% slopes <br />Overlying mountainsides, this unit consists of shallow, well drained soils. It is scheduled for <br />disturbance by the granite mining operation. The Roygorge soil is forming in residuum from <br />gneiss and granite and covers approximately 85% of the unit. This soil is typically characterized <br />by very gravelly sandy clay Ions over an indurated horizon at 11 to 12". It is neutral, non- <br />effervescent, non-saline, and non-sodic. Coarse fragment content ranges from 50 to 55% <br />throughout the profile. The effective rooting depth is 8 to 20". <br />Sedillo cobbly sandy loam, 4 to 25% slopes <br />This map unit consists of well drained soils forming on fan terraces in calcareous, gravelly and <br />cobbly alluvium along the Arkansas River. The unit may be disturbed by rail spur construction. <br />The Sedillo soil, making up about 85% of the unit, is typically characterized by extremely cobbly <br />and stony barns and sandy clay barns over hams to a depth of 60". This soil is neutral to <br />moderately alkaline, non- to strongly effervescent, and has a coarse fragment content ranging <br />from 5 to 75% throughout the profile, decreasing with depth. The effective rooting depth is 60" <br />or more. This soil is non-saline and non-sodic. The hazard of water erosion is slight to very high. <br />Frort! Range Aggregates, LLC- Parkdale Quarry <br />OMG 171 Permi[ Amendment <br />Page 36 <br />