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p-r <br />AL 1 ECH 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 / TO15 <br />Matrix: Water / Air <br />Date Analyzed: 12/21/2011 <br />Date Extracted: 12/21/2011 <br />Perimeters Conc. ug/L Spike <br />Added <br />Recovery % Control Limits RPD <br />MS MSD MS MSD Rec. RPD <br />1,1-Dichloroethene 48 49 50 96 98 70-130 20 2 <br />Benzene 48 48 50 96 96 70-130 20 0 <br />Trichloroethene 52 51 50 104 102 70-130 20 2 <br />Toluene 50 48 50 100 96 70-130 20 4 <br />Chlorobenzene 45 44 50 90 88 70-130 20 2 <br />m,p-Xylenes 97 92 100 97 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 Det. <br />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 />DIPE 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-Xylene ND ug/L 0.6 <br />TCE ND ug/L 1 <br />PCE ND ug/L 1 <br />TOTAI 1 Y DEDICATED TO CUSTOMER SATISFACTION