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CALTECHEnvironmental Laboratories <br />' 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> • O Telephone (562) 272-2700 Fax (--'62) 272-278 ' <br /> 1 <br /> QA/QC Report <br /> Method 8260B <br />' Matnx Water <br /> Date Analyzed 7111103 <br /> Units ug/L <br />' Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> _ <br /> Added Rec Rec <br />' 1,1-Dichloroethane 44 42 _ 50 88 84 60-140 4 <br /> Benzene 46 43 50 92 86 60-140 6 <br /> Trichloroethene 52 W49 50 104 98 60-140 6 <br /> Toluene 47 43 50 94 86 60-140 8 <br />' Chlorobenzene 49 48 50 98 96 1 60-140 2 <br /> m, -X lenes 100 98 100 100 98 1 60-140 2 <br /> 1 <br /> LCS Laboratory Control Standard <br />' LCSD Laboratc-tiry Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br /> Perimeters Blank Limits RPD <br />' 1,1-Dichloroeth�ne 0 70-130 <br /> Benzene 0 70-130 <br /> Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chforobenzene 0 70-130 <br />' m,p-X lenes 0 70-130 <br /> 1 <br />' TO-IAI LY D[_I)IC A 11_I) 10 C ( 5 I OMF R Sti7 ISFAC'TION <br />