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1 <br /> 6@ <br /> r. November 21,2006 <br /> NOA Project Number: E06045B <br /> Table 2. <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 /> Chuloak 0-19 Coarse sandy loam,SM <2 5.6-6.5 2.0-6.0 Sever:peres <br /> coarse 19-44 Sandy clay loam,sandy loam, <2 6.1-7.3 0.2-.60 slowly <br /> sandy loam, SC-SM,SC <br /> 0-2% 44-55 Fine sandy loam,SM <2 6.6-7.3 2.0-6.0 <br /> slopes,127 55-64 Loamy coarse sand,SM <2 6.6-7.3 6.0-20 <br /> Madera 0-19: Sandy loam;SM <2 5.6-7.3 2.0-6.0 Severe: <br /> sandy loam, 19-23: Sandy clay loam;SC <2 6.1 -7.3 0.2-0.6 cemented <br /> ` 0-2% 23-29: Clay,clay loam;CL,CH,SC <2 6.6-8.4 <0.06 pan,Peres <br /> slopes, 193. 29-60: Indurated <2 --- slowly. <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> 5.1 Soil Boring Locations <br /> A total of two soil borings were advanced on the Site. One boring was advanced to a depth of <br /> approximately three feet and the other to a depth of approximately six feet.Th , oil bo ' gs were <br /> Lused later for percolation test holes; the locations of the borings are indicated ' Plate 1. <br /> 5.2 Soil Boring Dimensions <br /> 6. The soil borings were approximate 3 feet ad 6 eet, as noted above,and were four inches in <br /> diameter. <br /> 6. 5.3 Soil Lithology Observed <br /> Generally, the soil encountered in the boring is similar to the soils reported by the San Joaquin <br /> L County Soil Survey for the area (USDA, 1992). Tables 3 presents the soil log for the soil borings. <br /> Table 3. <br /> Soil Lo <br /> Depth Interval (ft) Soil Type Unified Soil Classification <br /> 0-2 Light brown,silty clay CL <br /> 2-4 Dark brown,fine silty sand SM <br /> 4-6 Brown,moist clayey sand SC <br /> 6 <br />