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Total depth of borings 65 ft. Diameter of boring, 10 in. Date drilledo 10/15/91 <br /> Casing diameter: 4 in. Lengtld 62 ft. Slol slze1 0.020 in. <br /> Screen dlameterl 4 in. Length, 15 ft. Material types PVC <br /> DrIlling Companys Westex. Drillers Tony & Mark <br /> Method Used, Hollow—stem Auaer A Field Qvpologist, Claudio <br /> Signature of Registered Profe6slonals <br /> Registration Noa 4313 S el Calif. <br /> DEPTH <br /> SAMPLE P.I.D. USCS DESCRIPTION WELL <br /> NO. m CODE CONST. <br /> i <br /> 0 Asphaft. <br /> 2 <br /> 4 <br /> 0 Silt with trace clay, light brown, slightly damp, siiaht plasticity, <br /> S-5 20 ppm ML very stiff. <br /> 6 <br /> 8 <br /> _ 10 - S-10 35 pPmv Some clay, hard. <br /> 12 <br /> 14 <br /> S-•15 36 PPmv Trace fine—grained sand, moderate light brown, no plasticity. <br /> 16 <br /> 0 Sandy silt, fine—grained sand, moderate brown, siighlty <br /> 2p S-20 31 ppmv SM damp, very stiff, <br /> (section continues downward) <br />� . a LOG OF BORING= B-7/MW-2 PLATE <br /> i"AWt7AF=s ARCO Service Station No. 548 <br /> 1612 Hammer .Lane 7 <br /> 11LE No. Stockton, California <br /> PROJECT NO. 30004-4 0004o6A <br /> 0 <br />