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819 Striker Avenue,Suite 8 <br /> ® <br /> Sequoia Sacramento,CA 95834 <br /> (916)9Z1-9600 <br /> .Analytical FAX{916)9abs.co 0 <br /> . Analytical www.secluoialabs.com <br /> Delta Environmental Consultants(Cameron Park) Project: ARCO 5469,Stockton,CA <br /> 3330 Cameron park Dr.'Ste 550 Project Number: 5469,Stockton, CA Reported: <br /> Cameron Park CA, 95682 Project Manager. Steve Carter 03/06/02 13:41 <br /> Total Purgeable Hydrocarbons and BTEX by DHS LUFT- Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result U nit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2030007-EPA 5030B(P/T) <br /> Blank(2030007-BLKI) Prepared&Analyzed: 02/27/02 <br /> Purgeable Hydrocarbons ND 50 ug/l <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Surrogate:a,a,a-Trifluorotoluene 8.60 10.0 86.0 60-140 <br /> LCS(2030007-BSI) Prepared&Analyzed:02/27/02 <br /> Benzene 8.79 0.50 ug/l 10.0 87.9 70-130 <br /> Toluene 8.14 0.50 10.0 81.4 70-130 <br /> t ylbenzene 8.51 0.50 " 10.0 85.1 70-130 <br /> lenes(total) 24.4 0.50 30.0 81.3 70-130 <br /> Surrogate:a,a,a-Triuorotoluene 8.60 " 10.0 86.0 60-140 <br /> Batch 2030023-EPA 5030E P <br /> Blank 2030023-BLKI) Prepared&Analyzed: 02/28/02 . <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Surrogate:a,n,a-Trifluorotoluene 10.6 10.0 106 60-140 <br /> LCS(2030023-BSI) Prepared&Analyzed: 02/28/02 _ <br /> Benzene 9.31 0.50 ugll 10.0 93.1 70-130 <br /> Toluene 9.74 0.50 10.0 97.4 70-130 <br /> Ethylbemzene 9.93 0.50 10.0 99.3 70-130 <br /> Xylenes(total) 29.1 0.50 30.0 97.0 70-130 <br /> Surrogate:a,a,a-Trifluorotoluene 9.45 10.0 94.5 60-140 <br /> AOL <br /> equoia Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> Page 9 of 15 <br />