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Total depth of boring, 65 ft Diameter of boring, 8 in Date drilled, 12/18/91 <br /> Casing diameter, 4 in Length, 64 5 f Slot size, 10 n <br /> Screen diameter, 4 in Lengths 25 ft Material types PVC <br /> Drilling Company, Woodward Drilling Co Drillers wavne/Enc/Robert <br /> Method Used, Hollow—stem Auger rseld Geologist, Claudio <br /> Signature of Registered Professionals <br /> Registration No., 43139 State, Calif <br /> DEPTH SAMPLE o P I.D. USCS DESCRIPTION WELL <br /> NO m CODE CONST <br /> 0 Asphalt grove4 base f lk <br /> 2 CL Cloy black slightly damp slight plast ccty <br /> i <br /> 4 <br /> 6 S-6 39 p 0 ML Silt light brown nard <br /> 8 <br /> 14 <br /> S-1 1 36 0 Silt some clay brown <br /> ppmv <br /> 12 <br /> 14 <br /> 16 S-16 38 PPmv Very stiff <br /> 18 <br /> I <br /> 20 - <br /> 5-20 41 PPG Silt some clay moderate brown <br /> (section continues downward) <br /> AWAWALAF� LOG OF BORING: B7/VW-4 PLATE <br /> t,�►—/�►/■■� ARCO Service Station No. 2130 <br /> 7905 North EI Dorado Street C20 <br /> PROJECT NO. 30003-40oo3o6A Stockton, California <br />