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_e <br /> F1 <br /> E + May 26, 2005 <br /> NOA Project Number: E05053A <br /> F1 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) mmhos/cm Reaction ability absorption <br /> Symbol pH (in/ht) fields <br /> Boggiano 0-23: Clay loam;CL <2 6.6-7.8 0.2-0,6 Moderate: <br /> Clay loam, 23-48: Loam,clay loam,silty loam; <2 7.4-7.8 0.6-2.0 flooding, <br /> 0-2% SM,SP-SM cemented <br /> slopes,110. 48-60: Cemented --- --- --- pan,peres <br /> slowly <br /> Cogna 0-25: Loam;CL-ML,ML <2 6.1 -7.3 0.6-2.0 Moderate: <br /> loam,0-2% 25-64: Loam,clay loam,silty loam; <2 7.4-8.4 0.6-2.0 flooding, <br /> slo es,129. .CL-ML,CL encs scowl <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> 5.1 Soil Boring Lo cations <br /> A total of five soil borings were advanced on the Site; three to a depth of three and a half feet, one <br /> to a depth of about 25 feet and one to a depth of about 13 feet.The soil borings were used later forFI (\ <br /> the percolation test holes;the locations of the borings are indicated in Plate 1. <br /> 5.2 Soil Boring Dimensions <br /> F-Jif The soil borings were three and a half, 13 feet or 25 feet deep, as noted above, and were four inches �r 2� <br /> m diameter. <br /> Fi 5.3 Soil Lithology Observed <br /> Generally, the soil encountered in the boring 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 25 foot deep soil <br /> boring. Conditions were comparable in all holes. <br /> F, Table 4. <br /> Soil Boring Log. <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> F10-1.5 'Dark brown,moist silty sand with clay SM ?7� <br /> 1.5-3.5 Dark brown,moist,silty clay CL <br /> + 3.5-25 Dark brown,moist,fat clay CH <br /> F , <br /> 6 <br /> F <br /> M <br /> 0 <br />