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I <br /> Total depth of borings 75 ft Diameter of borings 8 ,n Date drilled, 12/18/91 <br /> Casing diameters 4 In Lengths 64 5 ft Slot sizes 10 in <br /> Screen diameters 4 In Lengths 25 ft Material type, PVC <br /> Drilling Company, Woodward Driflmg Co Drillers Wayne Enc/Robert <br /> Method Useds Hollow—stem Auger Field Geologists Claudio <br /> Signature of Registered Professionals <br /> Registration No., 43139 States Calf <br /> SAMPLE 3 USCS WELL <br /> DEPTH NO m Ill CODE DESCRIPTION CONST <br /> 0 Asphalt gravel base fill <br /> 2 <br /> CL Clay block slightly damp Slight plast,c,L <br /> 4 <br /> i ° <br /> S-6 39 <br /> 6 ppmv ML Silt, light brown, hard <br /> 8 <br />� 10 <br /> S-11 17 0 Silt trace clay moderate brown curio cr ✓ s .if <br /> ppmv <br /> 12 <br /> 14 <br /> 16 S-1 6 12 pp0 v Stiff <br /> 18 <br /> I <br /> 20 <br /> S-20 51 ppmv Very stiff <br /> (section ccni,n„es cownwara) <br /> LOG OF BORING: B6/MW2 PLATE <br /> "—t�VArM ARCO Service Station No, 2130 <br /> 7905 North El Dorado Street C17 <br /> FILE No Stockton, California <br /> PROJECT NO. 30003-4 001 <br />