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Sequoia 819 Striker Ave Sle 8 <br /> Sacramento,CA 95834 <br /> • (916)921-%00 <br /> . Analytical FAX(916)921-0100 <br /> f www.scquoialabs.corn <br /> If <br /> V <br /> Kleinfelder-Stockton Project:Del Monte S412522 <br /> 2825 East Myrtle Street Project Number:N/A Reported: <br /> Stockton CA,95205 Project Managerjoe Zilles 41/04/05 18:49 <br /> Purgeable Hydrocarbons and BTEX by EPA 8015B/8021B- Quality Control <br /> Sequoia Analytical -Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limil Units Level Result %REC Limits RPD Limit Notes <br /> Batch 4120404-EPA 5030B (PIT)/EPA 8015B/8021B <br /> Matrix Spike(4120404-MSI) Source:S412522-02 Prepared&Analyzed:01/03/05 <br /> f Benzene 9.59 0.50 ug/l 10.0 ND 96 60-140 <br /> 1` Toluene 9.52 0.50 10.0 ND 95 60-140 <br /> Ethylbenzene 9,50 0.50 10.0 ND 95 60-140 <br /> Xylenes(total) 28.5 0.50 30.0 ND 95 60-140 <br /> Surrogate:4-BFB(FID) 10,8 " 10.0 108 60-140 <br /> Surrogate:a,a,a-TFT(PID) 9.18 10.0 92 60-140 <br /> Matrix Spike Dup(4120404-MSD1) Source:5412522-02 Prepared&Analyzed:01/03/05 <br /> Benzene 9.87 0.50 ugll 10.0 ND 99 60-140 3 25 <br /> Toluene 9.86 0.50 10.0 ND 99 60-140 4 25 <br /> Ethylbenzene 9.75 0.50 10.0 ND 98 60-140 3 25 <br /> f Xylenes(tota[) 29.2 0.50 30.0 ND 97 60-140 2 25 <br /> Surrogate:4-BFB(FID) 10.2 10.0 102 60-140 <br /> Surrogate:a,a,a-TFT(P1D) 9.12 10.0 91 60-140 <br /> w ' <br /> f ; <br /> Sequoia 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 /> f 1 This analytical report must be reproduced in its entirety. <br /> Page 9 of I 1 <br />