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i <br /> DEM SAMEPJ•D• USCS WELL <br /> DESCRIPTION <br /> NO. m CODE CONST. <br /> 20 . <br /> 0 Silt, trace clay, light alive green, slightly damp, ' <br /> S-20 42 ppmv ML hard, (orange stains) <br /> 22 <br /> 24- <br /> S-25 47 ppmv Light brown <br /> 26 <br /> 28 '• <br /> 30 S-30 79 P 0 Brown, (yellow veins vertically and horizontally) <br /> 32- <br /> - 34 - . ' <br /> S-35 72 0 <br /> PPmv <br /> 38 ' <br /> S-40 82 0 • . <br /> 40 <br /> PPmv '- • . <br /> 42 <br /> 44 <br /> 46 T D Total depth = 45 feet <br /> Boring backfilled with cement/bentonite slurry <br /> 4-8 <br /> 50 <br /> �t�/� LOG OF BORING: B-19 PLATE <br /> awe <br /> � <br /> aE��tVANMU ARCO Service Station No. 6100 43 <br /> 25775 South Patterson Pass <br /> PROJECT NO. 30041-2 0041816H Tracy, California <br />