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CAL TECH Environmental Laboratories <br />6814 Rosecrans Avenue, Paramount. CA 90723-3146 <br />Telephone: (562) 272-2700 Fax: (562) 272-2789 <br />QA/QC Report <br />Method: 8260B <br />Matrix: Water <br />Date Analyzed. 1/1712011 <br />Date Extracted: 1/1712011 <br />Perimeters Conc. ugit Spike <br />Added <br />Recovery % Control Limits RPD <br />MS MSD MS MSD Rec. RPD <br />1,1-Dichloroethane 42 44 50 84 88 70-130 20 4 <br />Benzene 54 55 50 108 110 70-130 20 2 <br />Trichloroethene 48 52 50 96 104 70-130 20 8 <br />Toluene 46 47 50 92 94 70-130 20 2 <br />Chlorobenzene 43 45 50 86 90 70-130 20 4 <br />m.p-Xylenes 87 92 100 87 92 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 <br />Blank <br />Units Dot. <br />Limit <br />1,1-Dichloroethene ND ug/L 1 <br />Benzene ND ug/L 0.5 <br />Trichloroethene ND ug/L 0.6 <br />Toluene ND ug/L 0.5 <br />-Chlorobenzene ND ugit 0.5 <br />m.p-Xylenes ND ug/l. 0.6 <br />MTBE ND ug/L 1 <br />TBA ND ug/L 10 <br />DI PE ND ugfi. , 1 <br />ETBE ND ugiL 1 <br />TAME ND ug/L 1 <br />1,2-Dichloroethane ND ug,IL 0,5 <br />EDB ND ug/L 0.5 <br />Ethylbonzene. ND ug/L 0.5 <br />o-Xylene ND ug/L 0.6 <br />TCE ND ug/L 1 <br />PCE ND ug/L 1 <br />1(yr/ :y• DEDICATED T l'( :77cA I Arll