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CALTECH Environmental Laboratories <br /> Roteci im, Al nut- C 11?()7? ; ,I 1t, <br /> •i €�62127'--'700 F,i-% ( "G ll 272-278() <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 417/05 <br />' Date Extracted 417/05 <br />' Perimeters ConcM48L <br /> Spike Recover % Control Limits RPD <br /> LCSAdded LCS LCSD Rec. RPD <br /> 1,1-DEchloroethene 4850 96 92 70-130 20 4 <br />' Benzene 4750 94 90 70-130 20 4 <br /> Trichloroethene 52 50 104 96 70-130 20 8 <br /> Toluene 51 50 50 102 100 70-130 20 1 2 <br />' Chlorobenzene 49 47 50 98 94 70-130 20 1 4 <br /> m, -X lenes 106 102 100 106 102 70-130 1 20 4 <br />' LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> IRPD Relative Percent Difference of LCS and LCSD <br />' Perimeters Method Units Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND u /L 1 <br /> Benzene ND u /L 0 5 <br /> Trichloroethene ND u /L 06 <br /> Toluene 1 ND u /L 05 <br /> Chlorobenzene ND u /L 0 5 <br /> m, -X lenes ND ug/L. 06 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> I DIPS ND u2/1- 1 <br /> ETBE ND u /L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u /L 0 5 <br /> Eth lbenzene ND u /L 0 5 <br /> o-X lene ND ug/L 0 6 <br /> ITCE ND u /L 0 5 <br /> iPCE ND u /L 05 <br /> TO IAI.I_Y DI DR M 1 C) 1 t) c 1 1 ( 11f <br /> tl,R I�I11(}N <br />