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819 Striker Avenue,Suite 8 <br /> Sacramento,CA 95834 <br /> ' <br /> Sequoia <br /> FAX(916)921-0100 <br /> (916)921-900 <br /> 4:1) FAX www sequouilabs com <br /> Ir1326N <br /> ion-Sacramento Project Don Rogers <br /> rket Blvd Project Number 880039 1 A/01030000 Reported <br /> Sacramento CA,95834 Project Manager Tom Allan 02/20/02 14 24 <br /> Total Purgeable Hydrocarbons and BTEX in Air(ppmv) by DHS LUFI'-Quality Control <br /> Sequoia Analytical - Sacramento <br /> ' Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2020108-EPA 5030B(P/T) <br /> Blank 2020108-BLK1 Prepared&Analyzed 02/08/02 <br /> Purgeable Hydrocarbons ND 28 ppmv <br /> Benzene ND 0 016 " <br /> Toluene ND 0 013 n <br /> Ethylbenzene ND 0 012 <br /> Xylenes(total) ND 0 012 " <br /> Surrogate a a a-Trifluorotoluene 0 374 0 335 112 60-140 <br /> LCS(2020108-BS1) Prepared&Analyzed 02/08/02 <br /> ' Surrogate a a a-Trouorotoluene 0 334 ppmv 0 335 997 60-140 <br /> LCS Du (2020108-BSDl) Prepared&Analyzed 02/08/02 <br /> Surrogate a a,a-Trifluorotoluene 0 347 ppmv 0 335 104 60-140 <br /> quota Analytical-Sacramento The results in this report apply 10 the samples analyzed in accordance with the chain <br /> of custody document This analytical report must be reproduced to its entirety <br /> Page Page 5 of 6 <br /> 1 <br />