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NEI/GTEL Client ID BLA01CHV08 QUALITY C0NTROL RESULTS <br /> Login Number W7450359 Volatile Organics <br /> Method EPA 82446 <br /> Project ID (number) 970521 H2 <br /> Project ID (name) CHEVRON/9-1848/1257 YOSEMITE WEST/MACA/CA Matrix Aqueous <br /> NTE <br /> Laboratory Control Sample (LCS) and Laboratory Control Duplicate Results <br /> Spike LCS LCS LCS Duplicate LCS Duplicate Acceptability Limits <br /> Anal a Amount Concentration Recovery % Concentration Recovery % RPD % RPD % Recovery % <br /> EPA B240B Units ug/L QC Batch 060597BG3-3 <br /> 1,1-Dichloroethene 50 0 50 8 102 48 3 96 6 5 44 14 61-145 <br /> Trichloroethene 50 0 50 4 101 45 4 90 8 10 6 14 71-120% <br /> Benzene 50 0 52 2 104 48 0 96 0 8 00 11 76-127% <br /> Toluene 50 0 53 1 106 49 1 98 2 7 64 13 76-125% <br /> Chlorobenzem 50 0 49 0 98 0 45 4 90 8 7 63 13 75-130% <br /> Notes <br /> NEI/GTEL Wichita, KS <br /> W7050359 4 <br />