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i f 2 • • <br /> CAL TECH Environmental Laboratories <br /> 6,914 Kosic tgnn ,l\uuic 907 , 1-Iti <br /> f l'.1_/ 1 <br /> QA/QC Report <br /> Method: 8260B <br /> Matrix: Water <br /> Date Analyzed: 12/2/07 <br /> Date Extracted: 12/2/07 <br /> Perimeters Cone. u /L Spike Recovery % Control Limits RPD <br /> MS MSD Added MS MSD Ree. RPD <br /> 1,1-Dichloroethene 54 52 50 108 1 104 70-130 20 4 <br /> Benzene 53 49 50106 98 70-130. 20 8 <br /> Trichloroethene 51 48 50 102 96 70-130 20 6 <br /> Toluene 54 51 50 108 102 70-130 ?02 <br /> Chlorobenzene 46 44 50 92 1 88 70-130 20 1 4 <br /> m,p-Xylenes 96 89 100 96 89 70-130 20 1 7 <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 u /L 1 <br /> Benzene ND u /L 0.5 <br /> Trichloroethene ND u /L 0.5 <br /> Toluene ND u /L 0.5 <br /> Chlorobenzene ND a /L 0.5 <br /> m,p-X lenes ND u /L 0.6 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> DIPE ND u /L 1 <br /> ETBE ND u /L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 0.5 <br /> EDB ND u /L 1 0.5 <br /> Eth (benzene ND ug!L 0.5 <br /> o-Xylene ND ug/L 0.6 <br /> TCEND u IL 1 <br /> PCE ND <br /> TO]ALIYDi:UlCA11:(7TE> ('liSIQn11,RSAFISI•`A TION <br />