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CALTECH Environmental Laboratories <br /> r 6814 Rosecrans Avenue. Parall'OUnt, CA 90723-3146 <br /> C <br /> Telephone: (562) 272-2700 Fax: (562) 272-2789 <br /> QA/QC Report <br /> ' Method: 8015M/8021 B <br /> ' Matrix: Water <br /> Date Analyzed: 10/14/04 <br /> ' Units: ug/L <br /> ' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec. Rec. <br /> ' Benzene 46 44 50 92 88 60-140 4 <br /> Toluene 46 45 50 92 90 60-140 2 <br /> Ethybenzene 49 47 50 98 94. 60-140 4 <br /> Xylenes 104 97 100 104 97 60-140 7 <br /> ' TPH - Gasoline 1047 1011 1000 105 101 1 60-140 14 <br /> rLCS: Laboratory Control Standard <br /> LCSD: Laboratory Control Standard Duplicate <br /> ' RPD: Relative Percent Difference of LCS and LCSD <br /> 1 <br /> 1 <br /> ' TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />