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SAMPLE '300 USCS WELL <br /> DEPTH NO. o P.I.D. CODE DESCRIPTION CONST. <br /> 2d <br /> S125 Silt trace clay, brown, slightly damp, hard <br /> i <br /> 50 S-50 >50 ppmv ML (caliche laminations, 1 mm) <br /> 52 <br /> 54 115 <br />' S-55 53 <br /> ppmv <br /> 56 <br /> T D Total depth = 55-1/2 feet <br /> Boring terminated to construct vapor—extraction well <br /> 58 <br /> 60- <br /> - 62 - <br /> - 64 - <br /> - 66 - <br /> - <br /> 64 <br /> 66 <br /> 68 - <br /> - 70 - <br /> - 72 - <br /> - <br /> 72 <br /> 74- <br /> 76 - <br /> - 78 - <br /> _ 80 - <br /> LOG <br /> 47678SESLOO OF BORING: B-12/VW-5 PLATE <br /> ARCO Service Station No. 6100 �� <br /> 25775 South Patterson Pass <br /> [PROJECT NO. 30041-2 00'4'18'9'C Tracy, California <br />