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July 30,2005 <br /> NOA Project Number: E05089A <br /> Table 3. <br /> San Joaquin County Soil Survey <br /> Selected Soil Pro erties of On-Site Soils. <br /> Soil Name Depth Unified Soil Classification Salinity Soil Perme- Septic tank <br /> and Map (in) rn(nhos/cm Reaction ability absorption <br /> Symbol pH (in/ht) fields <br /> V Capay clay,0- 0-20 Clay CH,CL 6.6-8.4 0.06-0.2 Severe: <br /> 2 percent 20-60 Clay,Silty clay CL,CH 0.06-0.2 peres slowly <br /> slopes,118 <br /> Capay clay,2- 0-20 Clay CH,CL 6.6-8.4 0.06-0.2 Severe: <br /> 5 percent 20-60 Clay,Silty clay CL,CH 0.06-0.2 peres slowly <br /> slopes,119 <br /> Stomar clay, 0-17 1 Clay loam Cl 6.6-7.3 .2-.6 Severe: <br /> 0-2 percent 17-47 Clay loam,day CL,CH 6.6-8.4 .06-.2 Peres slowly <br /> slopes,252. 1 47-60 Clay loam,silty clay loam CL 7.48.4 .2-.06 <br /> 1. Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> ` 5.1 Soil Boring Locations <br /> L Two shallow soil borings were advanced on the Site to depths of 3.36 feet and 3.1 feet on June 29 <br /> and 30, 2005. One ground water boring to a depth of 8 feet was advanced on June 30,2005;no <br /> L, groundwater was encountered. The two shallower soil borings were used later for percolation test <br /> holes. The locations of the borings are indicated on Plate 1. <br /> r <br /> 5.2 Soil Boring Dimensions <br /> L The soil borings were 3.36 feet and 3.1 feet deep, as noted above,and were four inches in diameter. <br /> The soil boxings were drilled with a four inch hand auger. <br /> L5.3 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 a soil log for the 8-foot deep soil <br /> boring. Conditions were comparable in the shallower holes. <br /> L <br /> L <br /> L <br /> 7 <br /> '404L <br /> L <br />