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CAL TECH Environmental Laboratories <br /> 10 6814 Rosecrans A%enue- paramount, CA 9071.1-3146 <br /> Telephone: (56'_127'-_71)0 '72 -'789 <br /> QA/QC Report <br /> Method: 8260B <br /> Matrix: Soil <br /> Date Analyzed: 11/20/07 <br /> Date Extracted: 11/20/07 <br /> Perimeters Conc. u /K Spike Recovery % Control Limits RPD <br /> MS MSD Added MS MSD Rec. RPD <br /> 1,1-Dichloroethene 46 42 50 92 84 70-130 20 8 <br /> Benzene 53 55 50 106 110 70-130 20 4 <br /> Trichloroethene 53 54 50 106 108 70-130 20 2 <br /> Toluene 55 56 50 110 116 70-130 20 2 <br /> Chlorobenzene 47 46 50 94 92 70-130 20 2 <br /> m,p-Xylenes 98 99 100 98 I99 70-130 20 1 <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 /Kg 5 <br /> Benzene ND u /K 5 <br /> Trichloroethene NO, u /K 5 <br /> Toluene ND u /Kg 5 <br /> Chlorobenzene ND u /K 5 <br /> m,p-X enes ND u /Kg 5 <br /> MTBE ND u /K 5 <br /> TBA ND u /K 100 <br /> DIP E ND uq/Kq u /K10 <br /> ETBE ND u /Kg 10 <br /> TAME ND <br /> 1,2-Dichloroethane Iu Kg 5 <br /> EDB ND I ug/Kg 5 <br /> Ethylbenzene I ND I u IKg 5 <br /> o-Xylene I ND I ug/Kg 5 <br /> TO DALLY DFI)ICAITI) 1'0 C[`S'f(: WR SATISFACTION <br />