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I <br /> CIO <br /> DEPTH SAMPLE <br /> P.I.D. CODE DESCRIPTION WELL <br /> CONST. <br /> 40Silt, white to light olive green, slightly damp. <br /> I 50 S-50 >50 PPmv ML hard, (caliche stains, yellowish orange veins) <br /> - 52 - <br /> 54- <br /> 254 <br /> 5-55 >50 PPmv Trace clay, brown <br /> 56 <br /> 58 <br /> 6D- S-60 >50 ppmv <br /> 62 <br /> I <br /> 64 <br /> 5-65 >50 ppmv Trace fine—grained sand <br /> 6s <br /> 68 - <br /> S-69 >50 5 <br /> ppmv <br /> 70 T 0 Total depth = 69-1/2 feet <br /> Boring terminated to construct vapor—extraction well <br /> I <br /> - 72 - <br /> 74- <br /> - <br /> 274 <br /> 1 <br /> 76 <br /> 78 <br /> I 80 <br /> 1PLATE <br /> mwAw�ff` LOG OF BORING: B-18/VW-9 <br /> ARCO Service Station No. 6700 �1 <br /> 25775 South Patterson Pass <br /> PROJECT NO. 30041-2 0041915C RLE NO Tracy, California <br /> 1 <br />