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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue paiamount CA 90723-3146 <br /> O Ielephone (562) 272-2700 Fa\ (562) 272-2789 <br />' <br /> QA/QC Report <br />' Method 82606 <br />' Matrix Water <br /> Date Analyzed 616105 <br />' Date Extracted 616105 <br />' Perimeters Conc ug1L Spike Recove % Control Lim+ts RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 50 48 50 100 96 70-130 20 4 <br />' Benzene 47 49 50 94 98 70-130 20 4 <br /> Trichloroethene 52 52 50 102 104 70-130 20 2 <br /> Toluene 56 51 50 112 102 70-130 20 10 <br /> Chlorobenzene 58 1 55 50 116 110 70-130 20 4 <br />' m,p-X lenes 120 1 111 100 120 111 70-130 20 9 <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 IL 1 <br /> Benzene ND ug/L 0 5 <br /> Trichloroethene ND ug/L 0 5 <br /> Toluene ND ug/L 0 5 <br /> Chlorobenzene ND ugIL 0 5 <br /> m,p-X lenes ND uglL 0 6 <br /> MTBE ND ug/L 1 <br /> TBA ND9/L 10 <br />' DIPE ND ug/L 1 <br /> ETRE ND ug/L 1 <br /> TAME ND u IL 1 <br />' 1,2-Dichloroethane ND u IL 0 5 <br /> EDB ND u IL 0 5 <br /> Ethylbenzene ND ug/L 0 5 <br /> o-X lene ND ug/L 0 6 <br /> ' TCE ND ug/L 1 <br /> PCE ND u IL 1 1 <br /> TOTALLY DFDICAVLD TO CUSTOMER SATISFACTION <br />