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.lune 11,2003 <br /> Job Number:LG03-137 <br /> r Page 5 <br /> It Table 3. <br /> Selected Soil Properties of the Surrounding Area <br /> San Joaquin County Soil Survey Report. <br /> Soil Name and Map Depth(in) Unified Soil Salinity Soil Septic tank <br /> Symbol 'Classification mmhos/cm Reaction absorption <br /> PH fields <br /> Capay clay, 0-20: Clay. CH,CL <2 6.6-8.4 Severe: <br /> 0 to 2 percent slopes, 20-60: Clay,silty clay.' CL,CH- c2 6.6-8.4 peres slowly.. <br /> 118. <br /> Capay-Urban land .0-20:.Clay. CH,CL <2 6.6 8.4 Severe: . <br /> complex,0 to 2 20-60: Clay,silty,clay. CL,CH -�26..-6-8.4 peres slowly. <br /> percent slopes, 122. <br /> Stomar clay loam, 0-17: Clay loam. CL <2 -6.6-7.3 Severe: <br /> 0 to 2 percent slopes, 17747: Clay loam,clay: CL,CH <2, 6.6-8.4 peres slowly. <br /> 252. <br /> .47-60: Clay Ioam,silty. SC,CL <2 ' 7.4- 8.4 . <br /> clay loarxi. <br /> Note: The table descriptions do not necessarily reflect site-specific soil properties. <br /> Two (2), 3-foot exploratory borings and one(1),1 0-foot ground water boring was drilled 'n June <br /> 3, 2003 near the southeastern property boundary near the•percolation test.'This area contains the <br /> existing septic system leach'field(Plate 1). <br /> Generally, the soil encountered in the boring is similar to the soils reported by the San Joaquin <br /> County Sail Survey soil.for the area (USDA, 1993), Table 4 presents the soil log for the 3-ft sail <br /> borings: <br /> Table 4. <br /> Soil Boring Log. <br /> Depth interval(ft) Soil Type Unified Soil Classification <br /> 0-10 Dark brown cla 'with fine sand. CL <br /> ' Two 3-ft dee shallow test <br /> p { }percolahan test holes were drilled witlun,the existing septic field. <br /> P-1 was drilled with a hand auger tool and P-2 was drilled using a truck mounted Deep Rock <br /> r .. auger rig. The 107foot groundwater boring was also,drilled using a truck.mounted deep rock <br /> ! auger rig. A 2-in6h.diameter PVC pipe with perforations on the bottom was,used to measure the <br /> F <br />