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I <br /> SAMPLE USCS WELL <br /> DEPTHNO. v P'I.D. CODE DESCRIPTION CONST. <br /> • <br /> 50 Silt trace very fine—grained sand, pale yellowish brown, <br /> S-50 >5D pp my ML slightly damp, hard, calcite veins <br /> and concretions <br /> 52 <br /> 54 <br /> 56 5-55 53 pprnv Whitish calcite veins and concretions <br /> 5B <br /> 6D- <br /> S-60 >50 194 <br /> ppmv <br /> - 62 - <br /> TD <br /> 2TD Total depth = 61 feet <br /> Boring terminated to construct vapor—extraction well <br /> - 64 - <br /> - 66 - <br /> - <br /> 68 - <br /> - 70 - <br /> - 72 - <br /> - 74- <br /> - 76 - <br /> - 78 - <br /> - <br /> 72 <br /> 74 <br /> 76 <br /> 78 <br /> BD <br /> i _ _ i—/,a1i LOG OF BORINGS B-11/VW-3 PLATE <br /> ARCO Service Station No. 6100 2� <br /> 25775 South Patterson Pass <br /> PROJECT NO. 30041-2 0041 B8C Tracy, California <br />