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CAL TECH Environmental Laboratories <br /> 681 <br /> QA/QC Report <br /> Method: 8260B <br /> Matrix: Soil <br /> Date Analyzed: 4/9/08 <br /> Date Extracted: 4/9/08 <br /> Perimeters Conc. ug/Kg Spike Recovery % Control Limits RPD <br /> MS MSD Added Ms MSD Rec. RPD <br /> M-Dichloroethene 54 55 50 108 110 70-130 20 2 <br /> Benzene 50 52 50 100 104 70--130 20 4 <br /> Trichloroethene 52 55 50 104 110 70-130 20 6 <br /> Toluene 57 59 50 114 118 70-130 20 4 <br /> lChlorobenzene 49 50 50 98 100 70-130 20 2 <br /> Im,p-Xylenes 96 96 100 96 96 70-130 20 0 <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`/Kg 9 <br /> Trichloroethene ND ug/Kg 5 <br /> 1 oluene I ND ug/Kg 5 <br /> Chlorobenzene ND u(,/Kg 5 <br /> rn,p-Xylenes ND_ u2/Kq 5 <br /> MTBE ND u IK 5 <br /> TBA ND ug/Kg 100 <br /> DIPE ND 10 <br /> ETBE ND ug/Kg 10 <br /> TAME ND LJg/K4Q 10 <br /> 1,2-Dichloroethane ND ug/Kg 5 <br /> EDB ND uo/Kg 5 <br /> Ethylbenzene ND u()/Kg 5 <br /> o-Xylene ND ug/Kg 5 <br />