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CALTECH Environmental Laboratories <br />' 61 14 Rosecrans Are€ uc [;anon€nt CA 90723-3146 <br /> ]elephone (562) 272-27C{7 Eau (�b2) 272-2759 <br /> 1 <br /> QA/QC Report <br />' Method <br /> 8260B <br /> Matrix Water <br /> Date Analyzed 9/1/04 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD% I Limits RPD <br /> 4 Added Rec Rec <br /> 1-D€chloroethene 42 44 50 84 88 60-140 4 <br /> Benzene 46 48 50 92 96 60-140 4 <br /> I Trichloroethene 46 47 50 92 94 60-140 2 <br /> ;Toluene 49 51 50 98 102 60-140 4 <br /> IiChlorobenzene 47 50 50 94 100 60-140 4 <br /> lenes 91 98 100 91 98 60-140 7 <br /> _CS Laboratory Control Standard <br /> t-CSD Laboratory Control Standard Duplicate <br /> HPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Blank Limits RPD <br /> i <br /> 'i 1,1-D€chloroethene 0 70-130 <br /> 'Benzene 0 70-130 <br /> 'Inchloroethene 0 70-130 <br /> ,Toluene 0 70-130 <br /> IChlorobenzene 0 70-130 <br /> �rn,p-Xylenes. 0 70-130 <br /> I� <br /> I <br /> 10,' /\I I Y DF[)]( Af LD l() C USTOMER SATISFACTION <br />