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Sequoia 819 SmSuez 8 <br /> Sacrarramcnto n[o CA 95834 <br /> (916)921 9600 <br /> . Analytical ww 1910921-coon <br /> www sequotalabs evm <br /> IATC Associates Inc -Modesto Project Pacific Coast Rec <br /> 1 1 17 Lone Palm Ave Ste B Project Number 54 16393 0002 Reported <br /> Modesto CA 95351 Project Manager Drew Van Allen 01/02/02 12 08 <br /> Total Purbeable Hydrocarbons and BTEY to Air by DHS LUFr-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 1120260-EPA 5030B(PIT) <br /> Blank(11.20260-BLKI) Prepared&Analyzed 12/18/01 <br /> Purgeable Hydrocarbons ND 10 mg/ml Air <br /> Benzene ND 0 050 <br /> Toluene ND 0 050 <br /> Ethylbenzene ND 0 050 <br /> Xylenes(total) ND 0 050 <br /> Surrogate a a a-Trifluoratoluene 1 88 ? 00 94 0 60-140 <br /> LCS(1120260-BS0 Prepared&Analyzed 12/18/01 <br />' Benzene 1 99 0 050 mg/m'Air 200 995 70-130 Toluene 1 99 0 050 " 200 99 5 70-130 <br /> Ethylbenzene 2 10 0 050 200 105 70-130 <br /> Xylenes(total) 5 87 0 050 600 97 8 70-130 <br /> Surrogate a a a-Tr7fduorwoluene 1 89 2 00 945 60-140 <br /> LCS Du (I120260-BSDI) __ _ Prepared&Analyzed 12/18/01 _ <br /> Benzene 1 86 0 050 mg/ml Air 200 93 0 70-130 6 75 25 <br /> Toluene 1 96 0 050 200 980 70-130 1 52 25 <br /> Ethylbenzene 1 96 0 050 2 00 990 70-130 690 25 <br /> Xylenes(total) 5 50 0 050 600 91 7 70-130 651 25 <br /> Surrogate a a a-Trifluorotoluene 1 90 200 95 0 60-140 - <br /> 1 <br /> 1 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain <br /> of custody document Tlua analvitcal report must be reproduced in its entirety <br /> Page Page 5 of 8 <br /> I <br />