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CALTECH Environmental Laboratories <br /> ' <br /> CC7611.4 Rosecianti A' ELMIC I'al-titinuni CA X 0723-3 146 <br /> lione (562) 272_2700 l 062) 272-2789 <br /> ' QA/QC Report <br /> Method 82608 <br />' Matrix- Water <br /> Date Analyzed 319105 <br />' Date Extracted 3/9/05 <br />' Perimeters Conc. ugIL Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Ree. RPD <br /> 1,1-Dichloroethene 42 1 43 50 84 86 70-130 20 2 <br /> Benzene 44 4650 88 92 70-130 20 4 <br /> Trichloroethene 45 47 50 90 94 70-130 20 4 <br /> Toluene 41 43 50 82 86 70-130 20 4 <br /> Chlorobenzene 43 47 50 86 1 94 70-130 20 8 <br /> m, -X lenes 88 94 100 88 94 70-130 20 6 <br />' LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> 1 RPD Relative Percent Difference of LCS and LCSD <br />' Perimeters Method Units Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND u L 1 <br /> Benzene ND u /L 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND u L o 5 <br /> m, -X lanes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> DIPE ND u /L 1 <br /> ETRE ND u /L 1 <br /> TAME ND u /L 1 <br />' 1,2-Dichloroethane ND u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Eth (benzene ND u /L 0 5 <br /> o-X lene ND u /L 0 6 <br /> TCE ND a /L 1 <br /> PCE ND u /L 1 <br /> f <br /> i <br /> Tf)IALLY Dl DR AI I_I] 1O C I,' J UMER 1,,ATISFA("1 ION <br />