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i � <br /> QA/Q Report <br /> Blank Spike/Duplicate Blank Spike Summary <br /> Excelchem Environmental Labs, Roseville, CA <br /> Lab Report No.: 0710�124.CON Date: 07/15/2002 page: 22 <br /> QC Batch: 0711028020 <br /> Matrix: Water <br /> Lab Samp ID: W0702124-BS1 <br /> AcceptanceAnalysis Spike Level Spike Result / <br /> Recoveries Criteria <br /> Analyte Method LCS LCD LCS LCD Units LCS LCD RPD %Rec RPD <br /> Benzene SW8020F 12.5 12.5 13. 13.25 UGIL 104 106 1.9 120.80 MSA 15MSP <br /> Ethylbenzene SW8020F 12.5 12.5 12.625 13. UGIL 101 104 2.9 120-80 MSA 15MSP <br /> Toluene SW8020F 12.5 12.5 13. 13.125 UGIL 104 105 0.96 120-80 MSA 15MSP <br /> Xylenes SW8020F 25. 25. 25.75 26.25 1 UGIL 103 105 1.9 120-80 MSA 151VISP <br />