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Sequoia <br /> $19 Striker Avenue,Suite 8 <br /> O L1.i.[.� Sacramento,CA 95834 <br /> (916)921-9600 <br /> y� <br /> a }. a FAX(916)921-01100 <br /> Analytical www.sequoialabs.com <br /> r <br /> Kleinfelder-Stockton Project: Del Monte 5308028 <br /> 2825 East Myrtle Street Project Number: 12280 Reported: <br /> Stockton CA,95205 Project Manager: Joe Zilles 08/25/03 11:08 <br /> Gasoline (2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B - Quality Contr <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Nates <br /> Batch 3080062-PPA 5030B PIT <br /> Laboratory Control Sample(3080062-BSI) Prepared&Analyzed: 08/06/03 <br /> Benzene 9.18 0.50 ugll 10.0 92 70-130 <br /> Toluene 9.50 0.50 1010 95 70-130 <br /> j 3thylbenzene 8.87 0.50 .10.0 89 70-130 <br /> Xylenes(total) 27.3 0.50 30.0 91 70-130 <br /> Surrogate:a,a,a-D-ifluorotoluene 9.30 10.0 93 60-140 <br /> Laboratory Control Sample(3080062-BS2) Prepared&Analyzed:08/07/03 <br /> Benzene 9.70 0.50 ugll 10.0 97 70-130 <br /> Toluene 9.74 0150 10.0 97 70-130 <br /> 7-thylbenzene 8.99 0.50 10.0 90 70-130 <br /> Xylenes(total) 27.6 0.50 30.0 92 70-130 <br /> Surrogale:a,a,a-D-Ifluarotoluene 10.2 10.0 102 60.140 <br /> gyratory Control Sample(3080062-BS3) Prepared&Analyzed: 08/08/03 <br /> Benzene' 9.50 0.50 ugll 10.0 95 70-130 <br /> Toluene 9.88 0.50 10.0 99 70-130 <br /> 7thylbenzene 9.20 0.50 10.0 92 70-130 <br /> Xylenes(total) 28.3 0.50 30.0 94 70-130 <br /> Surrogate:a,a,a-Trifluorotoluene 9.19 10.0 92 60-140 <br /> Laboratory Control Sample(3080062-BS4) Prepared&Analyzed: 08/11/03 <br /> Benzene 10.3 0.50 ugA 10.0 103 70-130 <br /> Toluene 10,8 0.50 10.0 108 70-130 <br /> thylbenzene 10.3 0.50 10.0 103 70-130 <br /> Xylenes(total) 31.5 0.50 30.0 105 70-130 <br /> Surrogate:a,a,a-Tris luorotoluene 10.4 1.0.0 ' 104 60-140 <br /> Matrix Spike(3080062-MSl) Source: S307630-09 Prepared: 08/06/03 Analyzed:08/08/03 <br /> Benzene 9.92 0.50 ug/l 10.0 ND 99 60-140 <br /> Toluene 11.5 0.50 10.0 ND 115 60-140 <br /> "sthylbenzene 11.2 0.50 10.0 ND 112 60-140 <br /> I (ylenes(total) 34.2 0.50 30.0 ND 114 60.140 <br /> Surrogate:a,a,a-Tris luorotoluene 10.9 10.0 109 60-140 <br /> i <br /> I <br /> -uoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. Unless otherwise stated,results are reported on a wet weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> Page 11 of 16 <br />