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June 13, 2005 <br /> NOA Project Number: E05071A <br /> Table 3. <br /> San Joaquin County Soil Survey <br /> Selected Soil Properties of On-Site Soils. <br /> Soil Name Depth Unified Soil Classification Salinity Soil Perme- Septic tank <br /> and Map (in) mmhos/cm Reaction ability absorption <br /> Symbol pH (in/hr) fields <br /> Bruella 0-8: Sandy loam;SC-SM,SNI <2 6.1 -7.3 2.0-6.0 Severe:peres <br /> sandy loam, 8-42: Sandy loam,sandy clay loam;SC <2 6.1 -7.3 0.2-0.6 slowly <br /> hard 42-60: Sandy clay loam,sandy clay;SC <2 6.1 -7.3 0.2-0.6 <br /> substratum, <br /> 0-2% <br /> slopes,112. <br /> San Joaquin 0-12: Loam;CL-ML,XXL <2 5.6-6.5 0.6-2.0 Severe: <br /> loam,thick 12-26: Sandy clay loam;SC <2 6.1 -7.3 0.2-0.6 cemented <br /> surface, 26-35: Clay loam,clay;CL <2 6.1 -7.8 <0.06 pan,peres <br /> 0-2% 35-60: Indurated --- --- --- slowly <br /> slopes,240. <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> 5.1 Soil Boring Locations <br /> A total of four soil borings were advanced on the Site, two borings to a depth of about three and a <br /> half feet and two borings to a depth of about 8 feet. Two soil borings were used later for <br /> percolation test holes; the locations of the borings are indicated in Plate 1. <br /> �5.2 Soil Boring Dimensions <br /> The soil borings were about eight feet and about three and a half feet deep, as noted above. The <br /> diameter of the eight foot boring was six inches and the diameter of the shallow was four inches. <br /> /5.3 Soil Lithology Observed <br /> .. Generally, the soil encountered in the borings is similar to the soils reported by the San Joaquin <br /> County Soil Survey for the area (USDA, 1992). Table 4 presents the representative soil log for the <br /> eight foot deep soil boring. Conditions were comparable in the shallow holes. <br /> 7 <br />