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} <br /> -------- <br /> MEASURED SAMPLE �' USCS WELL <br /> DEPTH NO <br /> CDP <br /> P.I.D. CODE DESCRIPTION CONST. <br /> 20 <br /> 623 Silt, trace clay, light olive gray, moist slight plasticity, very stiff, <br /> 5-20 22 ppmv ML with calcite veins <br /> 22 <br /> 24- <br /> 'S—25 <br /> 45-25 17 41111 pmSilt, with some fine--grained sand, moderate yellowish brown <br /> 26 pv moist non—plastic, very stiff <br /> 28 <br /> 30 - <br /> S-30 16 427 ML <br /> ppmv SM Silty sand fine—grained moderate yellowish brown, moist non--plastic <br /> 32 Boring terminated at 31-1/2 feet <br /> Boring converted to vapor extraction well <br /> Groundwater not encountered <br /> 34 - <br /> 36 - <br /> - <br /> 436 38 <br /> - 40 - <br /> - 42 - <br /> - 44 - <br /> - <br /> 44 <br /> 46 - <br /> 48 <br /> LOG OF BORING: B-20/VW-5 PLATE <br /> _`jZWAV9 WA Unocal Service Station No. 6981 <br /> 4707 Pacific Avenue ] <br /> PROJECT NO. 38032 FILE NO <br /> Stockton, California <br /> 8032N18 <br />