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GTEL Client ID GTR01CHV08 QUALITY CONTROL RESULTS <br />Login Number W6090143 Volatile Organics <br />Project ID (number) 5297 85 Method EPA 8240B <br />Project ID (name) CHEVRON/9-0959/103 W 11TH STREET/TRACY/CA Matrix Aaueous <br />Laboratory Control Sample (LCS) and Laboratory Control Duplicate Results <br />Notes <br />NEI/GTEL Wichita KS <br />W6090143 4 <br />Spike <br />LCS LCS <br />LCS Duplicate <br />LCS Duplicate <br />Acceptability Limits <br />Analyte <br />Amount <br />Concentration Recovery % <br />Concentration <br />Recovery <br />% RPD % <br />RPD % <br />Recovery X <br />EPA 8240B Units <br />ug/L <br />QC Batch 091996HP4-3 <br />1,1-DichlOroethene <br />50 0 <br />41 8 83 6 <br />41 5 <br />83 0 <br />0 720 <br />14 <br />61-145% <br />Trichloroethene <br />50 0 <br />45 0 90 0 <br />45 4 <br />90 8 <br />0 885 <br />14 <br />71-120% <br />Benzene <br />50 0 <br />48 5 97 0 <br />48 4 <br />96 8 <br />0 206 <br />11 <br />76-127% <br />Toluene <br />50 0 <br />52 2 104 <br />51 3 <br />103 <br />0 966 <br />13 <br />76-125% <br />Chlorobenzene <br />50 0 <br />50 2 100 <br />49 9 <br />99 8 <br />0 200 <br />13 <br />75-130% <br />Notes <br />NEI/GTEL Wichita KS <br />W6090143 4 <br />