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1 ACCULABS, INC: <br /> Acculabs Inc. - Davis <br /> EPA 8260B QC Report <br /> 1 <br /> 1 Matrix Water Date Analyzed 715100 <br /> ' QC Batch VW000705 IMS/MSD Sample ID 21449-02 <br /> 1 QC Limas Set 8/18/99 <br /> ' Spike Conc MS MSD LCS Control Chart Limas <br /> Parameter ug/L % Rec % Rec RPD % Rec Lower Upper <br /> 1,1-Dichloroethene 50 102 99 3 1 111 26 139 <br /> Benzene 50 98 95 34 100 83 127 <br /> Trichloroethene 50 87 82 66 85 64 120 <br /> ' Toluene 50 72 78 82 87 64 129 <br /> Chlorobenzene 50 92 94 29 96 1 88 112 <br /> ' Control Chart Limits <br /> Surrogate Compound Lower Upper <br /> Dlbromofluoromethane 80 122 <br /> Toluene-d8 67 127 <br /> 4-Bromofluorobenzene 51 121 <br /> Tom iwoka <br /> Laboratory Director <br /> ' C 1EXCELIQC\VW000705 XLS <br />