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CALTECH Environmental Laboratories <br /> Rosec''An, 4v( -iue caramoL!nt (-'A 90;33-31,16 <br /> Te�e�hone -562) 27-1-2700 Fa- ,5562) 277-2789 <br /> QA/QC Report <br /> Method 8015M/8021 B <br /> Matrix Water <br /> Date Analyzed 2/27/02 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br /> Benzene 38 37 50 76 74 70-130 3 <br /> Toluene 38 37 50 76 74 70-130 3 <br /> Eth benzene 41 40 50 82 80 70-130 2 <br /> Xylenes 120 118 150 80 79 70-130 1 <br /> TPH - Gasoline 1 465 488 500 93 98 60-140 5 <br /> LCS Laboratory Control Standard <br /> I LCSD Laboratory Control Standard Duniicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />