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North Rond Road Subdivision Page 4 of 9 <br /> Our Project Number: LGS080510 <br /> April 30, 2008 <br /> The surface and near surface soils located at the site are reported by the San Joaquin County <br /> Soil Survey to be composed of Acampo sandy loam, Guard clay loam, Rioblancho clay loam and <br /> Stockton clay, all 0-2% slopes (see Plate 6) (USDA, 1992). The table below presents some <br /> selected properties of these soils: <br /> Table 1 <br /> San Joaquin County Soil Survey <br /> Elected Soil Properties of On-Site Soils <br /> Soil Name Salinity Soil Perme- Septic <br /> Depth Unified Soil tank <br /> and Map mmhos/ Reaction ability <br /> Symbol (in) Classification cm pH (in/hr) absorption <br /> fields <br /> 0-19: Sandy loam; SM <2 6.1 - 7.8 2.0 - 6.0 <br /> 19-47: Sandy loam, fine sandy <2 6.6 - 8.4 2.0 - 6.0 <br /> Acam o loam, coarse sandy loam.; Moderate: <br /> p ' cemented <br /> 101 SM <br /> pan <br /> 47-49: Indurated; --- --- --- <br /> 49-60: Cemented; --- --- --- --- <br /> Guard clay 0-15 Clay loam; CL <2 7.9-8.4 .2-.6 <br /> loam, Severe: <br /> drained, 0- wetness, <br /> 2% slopes, 15-72 Clay loam, sandy clay <2 7.9-8.4 .06-.2 peres slowly <br /> p , loam; SC, CL <br /> 169 <br /> 0-16 Clay loam; CL <2 7.4-8.4 0.2-0.6 <br /> 16-28 Loam, Clay loam; CL-ML, <2 7.4-8.4 0.2-0.6 Severe: <br /> Rioblancho CL cemented <br /> 226 28-39 Sandy loam, loam, silt <2 7.9-8.4 0.6-2.0 pan, peres <br /> loam; SC-SM, SM, CL-ML, slowly <br /> ML <br /> 39-80 Cemented --- --- --- <br /> 0-29: Clay; CL, CH <2 7.4-8.4 0.14-0.16 <br /> Stockton 29-37: Clay, silty clay; CL, CH <2 7.4-8.4 0.14-0.16 <br /> Severe: <br /> clay, 0-2% 37-42: Clay loam, silty clay loam; <2 7.4-8.4 0.14-0.17 peres slowly <br /> slopes, 250 CL <br /> 42-60: Cemented --- --- --- <br /> Note: The table descriptions do not necessarily reflect site-specific soil properties. <br /> * See description of the map unit for composition and behavior characteristics of the map unit <br /> "004 <br /> 902 Indu.titrial Wae• Lodi. CA 95240•209.367.3701 • Fax 209.3694228 200SNed 0 .Inder.mlI N.Issocmies lur <br />