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Total depth of borings 75 ft Diameter of boring, 10 �n Date drdleds 12/19Z91 <br /> Casing diameters 4 In Lengths 64 5 ft Slot sizes 02 In <br /> Screen diameter, 4 In Lengths 15 ft Material types PVC <br /> Drilling Companyi Woodward Drilling Cc Drillers Wayne/Eric/Robert <br /> Method Used: Hollow—stem Auger Field Geologist, Claudio <br /> Signature of Registered Professional: <br /> Registration No., 43139 States Cclhf <br /> DEPTH SAMPLE c P.I.D. USCS WELL <br /> DESCRIPTION <br /> NO o CODE CONST <br /> 0 Asphalt gravel ease till � <br /> 2 CL Clay black slightly damp slight plasticity <br /> 4 <br /> S-6 33 0 Sandy silt fine— medium—grained sand brown <br /> 6 ppmv SM dry, hard <br /> 8 <br /> 10 <br /> S-11 40 0 ML Silt trace clay moderate brown <br /> ppmv <br /> 12 <br /> 14 <br /> 0 <br /> 16 5-16 68 ppmv SM Sandy silt fine— medium—grained brown sligntly damp <br /> 18 <br /> - 20 - <br /> S-21 98 PPO v ML Silt trace clay moderate brown no plasticity <br /> (section continues downward) <br /> LOG OF BORING: BS/MW3 PLATE <br /> ZZA92WA ARCO Service Station No. 2130 <br /> 7905 North El Dorado Street C23 <br /> FILE No Stockton, California <br /> PROJECT NO. 30003-4 L0003D7A <br />