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CALTECH Environmental Laboratories <br /> 6814 Rosecrans Aventic Pal amount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 82606 <br /> Matrix Water <br /> Date Analyzed 7118105 <br /> Date Extracted 7/18105 <br /> Perimeters Conc ug/L. Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 48 50 50 96 100 70-130 20 4 <br /> Benzene 50 51 50 100 102 70-130 20 2 <br /> Trichloroethene 51 52 50 102 104 70-130 20 2 <br /> Toluene 54 55 50 108 110 70-130 20 2 <br /> Chlorobenzene 50 52 50 100 104 70-130 20 4 <br /> m, -X lenes 104 111 100 104 111 70-130 20 7 <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 ug/L 1 <br /> Benzene ND ug/L 0 5 <br /> Trichloroethene ND ug/L 0 5 <br /> Toluene ND u IL 0 5 <br /> Chlorobenzene ND u IL 0 5 <br /> m,p-Xylenes ND ug/L 0 6 <br /> MTBE ND ug/L 1 <br /> TBA ND u IL 10 <br /> DIPE ND u IL 1 <br /> ETBE ND ugIL 1 <br /> TAME ND ug/L 1 <br /> 1,2-Dichloroethane ND ug/L 05 <br /> EDB ND u /L 0 5 <br /> Ethylbenzene ND ug/L 0 5 <br /> I o-X leve ND ug/L 0 6 <br /> Ethanol ND ug/L 50 <br /> . Methanol ND ug/L 100 <br /> I <br /> TOTAI.LD <br /> Y EDICAFLI) VO CUS'10MER SATISFACTION <br />