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INVENTORY & EVALUATION <br />Requested By: United Companies Date: April 10, 2001 <br />by Richard Johnson, Resource Manager <br />Assisted By: Alvin L. Jones Location: S ' , Sec. 24 <br />District Conservationist T1N,R94W,6th PM <br />USDA-NRCS <br />SITUATION: You requested an inventory of existing soil and <br />vegetative conditions, and reclamation recommendations for the <br />proposed expansion of the existing United Companies Gravel Pit <br />located one mile east of Meeker. The proposed expansion would <br />be directly to the south of the existing pit to the edge of the <br />terrace bluff. Practically the entire perimeter of the proposed <br />pit has previously been disturbed and mined for gravel at one <br />time or another in the past. <br />INFORMATION PROVIDED: The following information is provided, <br />based upon an on site inventory and evaluation on April 10, <br />2001. <br />1) SOILS: <br />Three soils mapping units have been identified within the <br />proposed pit area. The first soil mapping unit is the #11 — <br />Borollic Calciorthids-Guben complex, 6-50 percent slopes. <br />The Borollic Calciorthids portion is a deep and well -drained <br />soil formed in calcareous 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 />The second soil mapping unit is the 33 — Forelle loam, 3 to 8 <br />percent slopes. This is a deep, well -drained eolian and <br />