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1 <br /> Total depth of boring, 75 ft Diameter of borings 10 in Date drilled, 12/16/91 <br /> Casing diameter: 4 in Lengilu 74 3 ft Slot size, 02 <br /> Screen diameter, 4 in Length: 15 ft Material type, PVC <br /> Drilling Company, Woodward Drilling Co Driller, Wayne/Robert <br /> Method Used, Hollow—stem Auger Field Geologist, Claudia <br /> Signature of Registered Professional. <br /> Registration No., 43139 Stale, Calif <br /> f <br /> DEPTH SAMPLE c P. I.D. USCS DESCRIPTION Wim' <br /> NO. m CODE CONST, <br /> C Asphalt, gravel base fill <br /> 2 CL Clay, black, slightly damp, slight plasticity <br /> Ir <br /> 4 <br /> S_6 31 ppmv SM Silty sand fine— medium—grained sand light brown F`• <br /> slightly damp, dense <br /> 00 $ <br /> 10 <br /> S-11 31 0 <br /> PPrnv ML Clayey silt, light brown, slightly damp slight plasticity <br /> 12 - stiff <br /> 14 <br />` 16 S-16 38PpQrnv Silt trace clay, hard <br /> 78 <br /> 20 <br />' S-21 31 Ppmv Silt trace fine—grained sand, light brown, slightly damp, <br /> hard <br /> (section continues downward) <br /> A LOG OF BORING= B2/MINI PLATE <br /> ARCO Service Station No. 2130 <br /> l 7906 North El Dorado Street CS <br /> PROJECT NO. 30003-4 00 NO <br /> Stockton, California <br /> 000 <br />