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CALTECH Environmental Laboratories <br /> 2Q, 72}-3 t/16 <br /> 11 ,2, :1'--_ c <br /> QA/QC Report <br /> I <br /> Method 8015M /8021 B <br /> Matrix Water <br /> Date Analyzed 112102 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> Benzene 419 45 50 84 90 70-134 71 <br /> Toluene 41 4 447 50 83 89 70-130 72 <br /> Eth benzene 1 439 478 50 88 96 70-130 91 <br /> Xylenes 115 125 150 77 83 70-130 78 <br /> TPH - Gasoline 1 459 479 500 92 96 60-140 43 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> IRPD Relative Percent Difference of LCS and LCSD <br /> I <br /> I <br /> I <br /> I <br />' T i f 1 � ATI S FACTION <br /> t� tA�.__Y DLA Cf _Q �IC) �C)JTJ�✓I)=.R �< <br />