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DEPTH SAMPLE o Pd.D. USCS DESCRIPTION WELL <br /> CONST. <br /> NO. m CODE � . <br /> 20- <br /> S-21 <br /> 0 S-21 24 ppmv ML Silt, light olive gray, slightly damp, very stsff +• <br /> 22 <br /> 24 <br /> 2fi S-26 23 ppmv SA with trace fine—grained sand dark yellowish brown ' <br /> 2S . <br /> 30 ' <br /> 5-31 15 0 Silty clay, light olive gray, slightly damp, slight <br /> ppmv plasticity, stiff <br /> 32 Total depth = 31-1/2 feet <br /> Boring backfilled with cement/bentonite slurry <br /> - 34 - <br /> 36- <br /> 38 - <br /> 40- <br /> - 42 - <br /> - <br /> 436384042 <br /> 44 <br /> 46 <br /> 48 <br /> 50 <br /> AWAWAkffAM LOG OF BORING: B-1 PLATE <br /> S��ArmAr w! ARCO Service Station No. 2168 <br /> 441 West Charter Way <br /> FILE NO PROJECT NO. 31009-4W 1009D4130, Stockton, California <br />