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CALTECH Environmental Laboratories <br /> • 6814 Ro-,ecians Avenue Paz amount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> ' Method 8260B <br /> ' Matrix Water <br /> Date Analyzed 3118105 <br /> Date Extracted 3/18/05 <br /> ' Perimeters Conc u IL Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 45 42 50 90 84 70-130 20 6 <br /> ' Benzene 43 41 50 86 82 70-130 20 4 <br /> Trichloroethene 42 41 50 84 82 70-130 20 2 <br /> Toluene 47 45 50 94 90 70-130 20 4 <br /> ' Chlorobenzene 51 48 50 102 86 70-130 20 6 <br /> m, -X lenes 96 91 100 96 91 70-130 1 20 5 <br /> ''. 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 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND u /L 0 5 <br /> ' m,p-X lenes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND u IL 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 0 5 <br /> EDB ND u /L 0 5 <br /> Eth lbenzene ND u /L 0 5 <br /> o-X lene ND u /L 0 6 <br /> TCE ND ug/L 1 <br /> PCE ND u /L 1 _ <br /> i <br /> 1 <br /> TOTALLY DEDIC ATED TO CUSTOMER SATISFACTION <br />