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CALTECH Environmental Laboratories <br /> ' 6814 Rosecrans Avenue Pal amount CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 4120105 <br /> Date Extracted 4120105 <br /> Perimeters Conc u /L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 42 40 50 84 80 70-130 20 4 <br /> Benzene 46 46 50 92 92 70-130 20 0 <br /> Trichloroethene 44 47 50 88 94 70-130 20 6 <br /> Toluene 47 49 50 94 98 70-130 20 4 <br /> Chlorobenzene 46 48 50 92 96 70-130 20 4 <br /> m, -X lenes 83 87 100 83 87 70-130 20 4 <br /> Jos LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Method Units Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND u /L 1 <br /> Benzene ND ug/L. 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND ug/L 0 5 <br /> m, -X lenes ND ug/L. 0 6 <br /> MTBE ND ug/L. 1 <br /> TBA ND ug/L. 10 <br /> i DIPS ND ug/L. 1 <br /> J ETBE ND ug/L. 1 <br /> TAME ND ug/L. 1 <br /> 1,2-Dichloroethane ND u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Eth (benzene ND u /L 05 <br /> 0-Xylene ND u /L 0 6 <br /> TCE ND ug/L. 1 <br /> PCE ND u /L 1 <br /> I1 <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />