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CALTECHEnvironmental Laboratories <br />' 6814 Rosecrans Avenue P<ranlount CA 9G'72'-3146 <br /> • Telephone (562) 272-2700 Pax (5 62) 272-2789 <br /> 1 <br /> QA/QC Report <br />' Method <br /> 82606 <br /> Matrix Water <br /> Date Analyzed 4/9/04 <br /> 1 Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 42 43 50 84 86 60-140 2 <br /> Benzene 44 48 50 88 96 60-140 9 <br /> Trichloroethene 44 47 50 88 94 60-140 7 <br /> Toluene 47 50 50 94 100 60-140 6 <br />' Chlorobenzene 48 51 50 96 102 60-140 6 <br /> rn,p-X ienes 95 102 100 95 102 60-140 7 <br /> 1 • <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I � <br /> lt <br /> Perimeters Blank Limits RPD <br /> 1,1-Dichioroethene 0 70-130 i� �� _tv �l <br /> Benzene 0 70-130 <br /> Trichloroethene 0 70-130 <br />' Toluene 0 70-130 a' r <br /> Chlorobenzene 0 70-1'30 Yom' <br /> m,p-Xylenes 0 70-130 <br /> I <br /> TOTALLY T(DFIA Ar D CUSI Tl F <br /> E ) Cl S1 C)MER SA S ACTrON <br />