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i <br /> Total depth of boringe 75 ft Diameter of boring. 10 in Date drilled, 12/19/91 <br /> Caaing diameters-4 in Length, 64 5 ft Slot size, 02 in <br /> . Screen dlametere 4 on Length, 15 ft Material type, PVC <br /> i Drilling Company, Woodward Drilling Co Drillers Wayne/Enc/Robert <br /> Method Used@ Hollow—stern Auger Field Geologist, Claudio <br /> Signature of Registered Professional: <br /> Registration Nox 43139 Stater Calif <br /> A <br /> DEPTH SAMPLE c P_I.D. USCS DESCRIPTION WELLNO. m CODE CONST. <br /> I <br /> 0 Asphalt, gravel base fill <br /> z CL Clay, black, slightly damp, slight plasticity , <br /> i <br /> 4 <br /> Q Sandy silt, fine— medium—grained sand, brown, <br /> 6 S—S 33 ppmv 5M dry, hard <br /> 10 <br /> S-11 40ppmv ML Silt trace clay, moderate brown <br /> 12 <br /> 14 <br /> 0 <br /> 16 5-16 68 ppmv SM Sandy silt, fine— medium—grained, brown, slightly damp <br /> 18 <br /> 20 <br /> 5-21 98 ppmv ML Silt trace clay, moderate brown, no plasticity <br /> (section continues downward) <br /> LOG OF BORING: B8/MW3 PLATE <br /> WAV ARCO Service Station No. 2130 <br /> 7905 North EI Dorado Street C23 <br /> FILE NO PROJECT NO. 30003-4 000307Stockton, California <br /> A <br />