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~• ~'~TENTORY & EVALUATIC~ <br />Requested By: Rio Blanco County Road Date: March 27, 2000 <br />and Bridge Department <br />by Joy Surveying Company <br />Assisted By: Alvin L. Jones Location: S '-:, Sec. 31 <br />Resource Conservationist T1N,R95W,6th PM <br />USDA-NAGS <br />SITUATION: You requested an inventory of existing soil and <br />vegetation, and reclamation recommendations for the proposed <br />Shults gravel pit located near the mouth of Hay Gulch, west of <br />Meeker. <br />INFORMATION PROVIDED: The following information is provided, <br />based upon an on site inventory and evaluation on March 27, <br />2000. <br />1) SOILS: <br />Primarily one soil has been mapped on this location, where <br />the disturbance will occur, soil mapping unit #11 - Borollic <br />Calciorthids-Guben complex, 6-50 percent slopes. <br />The Borollic Calciorthids portion is a deep and well drained <br />soil formed in calacerous alluvial material. The surface layer <br />is gravelly or cobbly loam, clay loam, or sandy loam 2 to 5 <br />inches thick. The underlying material ranges from very gravelly <br />sandy loam or cobbly sandy loam to very gravelly loamy sand or <br />cobbly loamy sand. Calcium carbonate content is more than 15 <br />percent. Depth to sandstone or soft shale is generally 60 <br />inches or more. Permeability is moderately rapid to rapid. The <br />available water holding capacity is low. Runoff is medium to <br />rapid and the hazard of water erosion is moderate to high. <br />The Guben portion is also deep and well drained, which <br />formed in eolian deposits over calcareous alluvium. Typically <br />the surface layer is a greyish brown loam 6 inches thick. The <br />next layer is brown loam 5 inches thick. The upper 4 inches of <br />the underlying material is a pale brown gravelly loam, the next <br />8 inches is a white very gravelly loam, and the lower part to a <br />depth of 60 inches or more is a stratified very cobbly sandy <br />loam that is more than 15 percent calcium carbonate. <br />Permeability is moderate, with a water holding capacity of low <br />to moderate. Runoff is medium, and the water hazard is slight <br />to high. <br />Part of the proposed site has adequate depths of suitable <br />topsoil which should be saved and stockpiled for use when the <br />site is reclaimed. <br />