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I <br /> CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue Pai amount CA 90723-3146 <br /> Telephone (562) 272-2700 Far (562) 272-2789 <br />' QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 12/22/04 <br />' Date Extracted 12/22/04 <br />' Perimeters Conc u /L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 49 52 50 98 104 70-130 20 6 <br />' Benzene 44 45 50 88 90 70-130 20 2 <br /> Trichloroethene 54 54 50 108 108 70-130 20 0 <br /> Toluene 55 54 50 110 108 70-130 20 2 <br /> Chlorobenzene 55 55 50 110 1 110 70-130 1 20 0 <br />' m, -X lenes 91 93 100 91 1 93 70-130 1 20 2 <br /> 1 • 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 u /L 05 <br /> Trichloroethene ND u /L 1 05 <br /> Toluene ND u /L 05 <br /> Chlorobenzene ND ug/L 05 <br /> m, -X lenes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br />' DIPE ND u /L 1 <br /> ETBE ND ug/L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 05 <br />' EDB ND u /L 05 <br /> Eth (benzene ND u /L 05 <br /> o-X lene ND u /L 06 <br />' TCE ND u /L 05 <br /> PCE ND I u /L 05 <br /> • <br /> TOTALLY DEDICA-I ED TO CUSTOMER SATISFACTION <br />