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U.S. Department of ~riculture <br />~ ~ Soil Conservation Service <br />• Page - 2 <br />11/14/94 <br />NONTECHNICAL SOILS DESCRIPTION REPORT <br />FOR DESCRIPTION CATEGORY - SOI <br />Survey Area- LARIMER COUNTY AREA, COLORADO <br />Map <br />Symbol <br />Description <br />Dryland <br />61 LARIMER FINE SANDY LOAM, 1 TO 3 PERCENT SLOPES This <br />nearly level soil is on terraces, fans, and benches. <br />Included with this soil in mapping are small areas of <br />Altvan, Fort Collins, and Stoneham soils. Also <br />included are small areas of soils that are more or less <br />sloping, and small areas of soils that have a surface <br />layer of loam or sandy clay loam. The Larimer series <br />consists of deep, well drained soils that formed in <br />material weathered from alluvium. Typically, the <br />surface layer is a fine sandy loam about 4 inches <br />thick. The subsoil is a loam about 18 inches thick. <br />The substratum is about 8 inches of gravelly sandy loam <br />that is underlain by sand and gravel that extends to 60 <br />inches. Permeability is moderate above a depth of <br />about 22 inches and rapid below that depth. The <br />available water capacity is medium. Reaction is <br />neutral above a depth of about 4 inches and mildly or <br />moderately alkaline below that depth. Runoff is slow. <br />The hazard of water erosion is slight and the hazard of <br />wind erosion is moderate. This unit is a Loamy Plains <br />range site. Capability unit is IIIe-5 Irrigated, IVe-5 <br />Dryland <br />95 SATANTA LOAM, 1 TO 3 PERCENT SLOPES This level soil is <br />on terraces and uplands. The Satanta series consists <br />of deep, well drained soils that formed in mixed <br />alluvial and wind-deposited material. Included with <br />this soil in mapping are a few small areas of soils <br />that are more sloping or less sloping. Also included <br />are a few small areas of Fort Collins, Nunn, and Altvan <br />soils. Typically, the surface layer is loam about 7 <br />inches thick. The upper part of the subsoil is a clay <br />loam and lower part is a loam about 16 inches thick. <br />The substratum is a loam about 21 inches thick over a <br />fine sandy loam extending to 60 inches or more. <br />Permeability is moderate, and the available water <br />capacity is high. Reaction is mildly alkaline above a <br />depth of 18 inches and moderately alkaline below that <br />depth. Runoff is slight, and the hazard of erosion is <br />slight to moderate. This unit is a Loamy Foothill range <br />site. Capability unit is IIe-1 Irrigated, IIIe-6 <br />Dryland <br />102 STONEHAM LOAM, 3 TO 5 PERCENT SLOPES This gently <br />