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1 <br /> CALTECH Environmental Laboratories <br /> C <br /> 1 <br /> QA/QC Report <br /> Method 8260B <br />' Matrix Water <br /> Date Analyzed 5121103 <br />' Units ug/L <br />' Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 54 54 50 108 108 60-140 0 <br /> Benzene 50 51 50 100 102 60-140 2 <br /> Trichloroethene 43 45 50 86 90 60-140 4 <br />' Toluene 50 44 50 100 88 60-140 12 <br /> Chlorobenzene 46 43 50 92 86 60-140 6 <br /> m, X lenes 102 96 100 102 96 60-140 6 <br /> lie <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br /> Perimeters Blank Limits RPD <br />' 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br />' Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br />' rn,p-X lenes 0 70-130 <br /> 1 <br />' <br /> TO 1 It i 1.`� ��1�L�S"� ATI-I-L� <br /> 7 � ' <br />