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CALTECH Environmental Laboratories <br /> 6814 Ko.,c row- V,u•mwi I';w1111�1unl ( u1,7 ; 1 4(1 <br /> I cls-l,h:,r, (`f.� 7( t, l ;1, ;-�(,'i • I <br /> QA/QC Report <br /> Method: 8260B <br /> Matrix: Water <br /> Date Analyzed: 3/16/07 <br /> Date Extracted. 3/16/07 <br /> Perimeters Conc. ug/L Spike Recovery % Control Limits RPD <br /> MS MSD Added MS MSD Rec. RPD <br /> 1,1-Dichloroethane 46 46 50 92 92 70-130 20 0 <br /> Benzene 48 47 50 96 94 70-130 20 2 <br /> Trichloroethene 49 49 50 98 98 70-130 20 0 <br /> Toluene 45 44 50 90 88 70-130 20 2 <br /> Chlorobenzene 42 40 50 84 80 70-130 20 4 <br /> m,p-Xylenes 89 84 100 89 84 70-130 20 5 <br /> MS: Matrix Spike <br /> MSD: Matrix Spike Duplicate <br /> RPD: Relative Percent Difference of MS and MSD <br /> Perimeters Method Units Det. <br /> Blank Limit <br /> 1,1-Dichloroethene ND ug/L 1 <br /> Benzene ND ug/L 0.5 <br /> Trichloroethene ND ug/L 0.5 <br /> Toluene ND ug/L 0.5 <br /> Chlorobenzene ND ug/L 0.5 <br /> m,p-Xylenes ND ug/L 0.6 <br /> MTBE ND ug/L 1 <br /> TBA ND ug/L 10 <br /> 51PE ND ug/L 1 <br /> ETBE ND ug/L 1 <br /> TAME ND ug/L 1 <br /> 1,2-Dichloroethane ND ug/L 0.5 <br /> EDB ND ug/L 0.5 <br /> Ethylbenzene ND ug/L 0.5 <br /> o-X lene ND u /L 0.6 <br /> TCE ND ug/L 1 <br /> PCE ND ug/L 1 <br /> O1Al I l DIA)K . 111) 1 (1 IS I )MIR SAI 111 A(,' 1 loh <br />