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Geological Landscape Section Summary 2024 <br />Layer Depth (inches)Soil Texture AASHTO Group Unified Soil Description SaturatedHydraulicConductivity micro m/sec <br />Soil Reaction pH <br />2 20-50 Loamy sand Reference: This is a classification of soil material for highway and airfield construction (Procedure M 145-73 in Am. Assoc. of State Highway and Transportation Officials, 1984. <br />material is high in organic matter (ASTM test D 2487, in ASTM, 1984). <br />42.34-423.3 4.5-7.3 <br />3 50-81 Loamy sand Reference: This is a classification of soil material for highway and airfield construction (Procedure M 145-73 in Am. Assoc. of State Highway and Transportation Officials, 1984. <br />COARSE-GRAINED SOILS, Sands, Sands with fines, Silty Sand. Reference: This is a classification of soil material designed for general construction purposes. It is dependent on the particle size distribution of the <75 mm, the liquid limit, and the plasticity index and on whether the soil material is high in organic matter (ASTM test D 2487, in ASTM, 1984). <br />42.34-423.3 4.5-7.3 <br />4 81-200 Sand Granular materials (35% or less passing No. 200), fine sand. Reference: This is a classification of soil material for highway and airfield construction (Procedure M 145-73 in Am. Assoc. of State Highway and Transportation Officials, 1984. <br />COARSE-GRAINED SOILS, Sands, Clean Sands, Poorly Graded Sand. Reference: This is a classification of soil material designed for general construction purposes. It is dependent on the particle size distribution of the <75 mm, the liquid limit, and the plasticity index and on whether the soil material is high in organic matter (ASTM test D 2487, in ASTM, 1984). <br />42.34-423.3 5.1-8.4 <br />SOIL MAP ID 8 SSURGO <br />USDA Soil Name Hubbard,Series <br />USDA Soil Texture Loamy sand <br />Hydrologic Soil Group A <br />Soil Drainage Class Excessively drained <br />Hydric Classification 3 <br />Corrosion Potential - Uncoated Steel Low <br />Page 484 of 890