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AL 1T <br /> ECH Environmental Laboratories <br /> 6814 Roseuans Avenue. Plirunuount. CA 90723- 176 <br /> lelehhonC 1562 272 '7DO I-m: ('02) 7._'-.. 734 <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. u /L Spike Recovery °/p Control Limits RPD <br /> LCS LCSD Added 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 20I 5 <br /> LCS: Laboratory Control Standard <br /> LCSD: Laboratory Control Standard Duplicate <br /> RPD: Relative Percent Difference of LCS and LCSD <br /> Perimeters Method Units Det. <br /> Blank Limit <br /> 1,1-Dichloroethene ND ug/L 1 <br /> Benzene ND u 1 0,5 <br /> Trichloroethene ND u /L 0.5 <br /> Toluene NO ug/L 0.5 <br /> Chlorobenzene ND ug/L 0.5 <br /> m, -X lentis ND u /L 0.6 <br /> MTBE ND u /L 1 <br /> TBA ND ug/L 10 <br /> DIPE ND u /L 1 <br /> ETBE ND ug/L 1 <br /> TAME ND ug/L 1 <br /> 1,2-Dichloroethane ND u /L 0.5 <br /> EDB IN uglL 0.5 <br /> Eth ]benzene ND u /L 0.5 <br /> o-Xylene ND u /L 0.6 <br /> TCE ND u /L 1 <br /> PCE ND. ug/L 1 <br /> 'It)1 AI IV r11 rll('Kn[PI) T(I ('•I N'I'f snd I-P CAl ILI'A(^Trf1h1: <br />