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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Aven;_,e Paramount CA 90723-3146 <br />• O Telephone (562) 272-2700 Fax (562) 272-2789 <br />QA/QC Report <br />Method <br />8260B <br />Matrix <br />Water <br />Date Analyzed <br />7/28/03 <br />Units <br />ug/L <br />Perimeters <br />LSC <br />LCSD <br />Spike <br />Added <br />LCS % <br />Rec <br />LCSD % <br />Rec <br />Limits <br />RPD <br />1,1-Dichloroethene <br />42 <br />44 <br />50 <br />84 <br />88 <br />60-140 <br />4 <br />Benzene <br />40 <br />44 <br />50 <br />80 <br />88 <br />60-140 <br />10 <br />Trichloroethene <br />46 <br />50 <br />50 <br />92 <br />100 <br />60-140 <br />9 <br />Toluene <br />49 <br />54 <br />50 <br />98 <br />108 t <br />60-140 1 <br />10 <br />Chlorobenzene <br />48 <br />48 <br />50 <br />96 <br />96 1 <br />60-140 1 <br />0 <br />m, -X lenes <br />101 <br />113 <br />100 <br />101 <br />113 1 <br />60-140 1 <br />12 <br />LCS Laboratory Control Standard <br />LCSD Laboratory Control Standard Duplicate <br />RPD Relative Percent Difference of LCS and LCSD <br />Perimeters <br />Blank <br />Limits RPD <br />1,1-Dchloroethene <br />0 <br />70-130 <br />Benzene <br />0 <br />70-130 <br />Tnchloroethene <br />0 <br />70-130 <br />Toluene <br />0 <br />70-130 <br />Chlorobenzene <br />0 <br />70-130 <br />m,p-X lenes <br />0 <br />70-130 <br />TOTALLY DI -DI( A[ F D TO CUSTOMER SATISFACTION <br />