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r <br /> Total depth of borings 69 ft Diameter of borings 8 25 in Date drilledi 3/3/92 <br /> Casing diameters 2 in Langur 49 ft Slot sizes 0 010 <br /> Screen ammeter, 2 in Length. 20 ft Material type. PVC <br /> Drilling Companys Woodward Drilling Co Drillers Erik Robert <br /> 1 <br /> Method Used+ Hollow—stem Auger Field ©eologiats Richard Alden <br /> Signature of Registered Professionsh <br /> Registration No.. 4313 States Calif <br /> 1 <br /> DEPTH SAMPLE ;;s P.I.D. uses DESCRIPTION wEI.L <br /> NO, CODE CONST. <br />' 0 0 25 ft asphalt <br /> 0 75 ft aggregate <br /> 0 50 ft sand fill <br /> 2 <br /> CL Clay, grayish black, slightly damp <br /> 4 <br /> 6 S-6 22 ppmv Mt_ Silt •: <br /> S <br /> 14 <br /> S-11 25 2 Silt, moderate yellowish brown mottled with olive gray, <br /> ppmv slightly damp, very stiff <br /> 12 <br /> 14 :. <br /> 18 S-16 25 ppmv Silt, as at 10 ft , less mottled with olive gray - <br /> 18 • <br /> 20 <br /> S-21 18 <2 Silt. pale yellowish brown, slightly damp, stiff <br /> Ppmv .. �. <br /> (section continues downward) <br /> �/ LOQ OF BORINGS B-$/MW-7 PLATE <br /> ZZZA ��� Unocal Service Station No. 6981 <br /> 4707 Pacific Avenue <br /> FILE NO Stockton, California <br /> PROJECT NO. 38032 8032136A <br /> r <br />