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CAL TECH Environmental Laboratories <br />-0" 6814 Rosecrans A‘ enue. Paramount. CA 90723-3146 <br />Telephone: (5621272-2700 I ax: (562) 272-2789 <br />QA/QC Report <br />Method: 8260B <br />Matrix: Water <br />Date Analyzed: 2/27/07 <br />Date Extracted: 2/27/07 <br />Perimeters Conc. ug/L Spike <br />Added <br />Recovery % Control Limits RPD <br />LCS LCSD LCS LCSD Rec. RPD <br />1,1-Dichloroethene 52 55 50 104 110 70-130 20 6 <br />Benzene 53 54 50 106 108 70-130 20 2 <br />Trichloroethene 46 49 50 92 98 70-130 20 6 <br />Toluene 51 52 50 102 104 70-130 20 2 <br />Chlorobenzene 44 45 50 88 90 70-130 20 2 <br />m,p-Xylenes 88 93 100 88 93 70-130 20 5 <br />LCS: Laboratory Control Standard <br />LCSD: Laboratory Control Standard Duplicate <br />RPD: Relative Percent Difference of LCS and LCSD <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 />D1PE 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 />TOE ND ug/L 1 <br />POE ND ug/L 1 <br />'tfn'A I 1 V 1)1-1)1('.AT1T) TO CI !ST( )yll:R SATNFACTION