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CALTECH Environmental Laboratories <br /> Y S 1es1 b 7� r�-11'—d-L ' A 7 j �-j �v <br /> QA/QC Report <br /> Method 8260B <br />' Matrix Water <br /> Date Analyzed 12128!01 <br />' Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec. Rec <br />' 1,1-Dichloroethene 521 509 50 104 102 70-130 1 9 <br /> Trichloroethene 459 412 50 92 82 70-130 11 <br /> Chlorobenzene 422 41 1 L 50 1 84 82 70-130 24 <br /> Toluene 431 41 8 50 1 86 84 70-130 1 23 <br />' Benzene 38 6 373 50 1 77 75 70-130 1 2 6 <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br /> 1 <br /> 1 <br />' <br /> TOTAL-1v F FICA T F:) To CUI; TONAFR > ,T TSFACTTON <br />