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CALTECH_ Environmental Laboratories <br /> 1 6814 Roseeran s Avenue NINI lOtlnt CA 9()723-3146 <br /> Telephone (562) 272-2700 Fax (-','62) ,72-278 <br /> QA/QC Report <br /> ' <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 711/04 <br /> Units ag/L <br /> ' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 49 51 50 98 102 60-140 4 <br /> Benzene 41 42 50 82 84 60-140 2 <br /> Trichloroethene 42 47 50 8494 60-140 12 <br /> Toluene 44 48 50 88 _ 96 60-140 9 <br /> ' Chlorobenzene 48 52 50 96 104 60-140 8 <br /> m,p-X lenes 99 104 100 99 104 60-140 5 <br /> lie <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <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 />' m,p-X lenes 0 70-130 <br /> 1 <br /> TOTAI-I_Y DI D[C A l I D rO CUS I OMLR SATISFACTION <br />