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819 Striker Ave Ste 8 <br /> q <br /> Se uoia Sacramento,CA 95834 <br /> R A (916)921-9600 <br /> Analytical FAX(916)921.0100 <br /> J www.sequoialabs.com <br /> Kleinfelder-Stockton Project: Del Monte 5212260 <br /> 2825 East Myrtle Street Project Number: 12280 Reported: <br /> Stockton CA,95205 Project Manager: Joe Zilles 02/21/03 11:53 <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 Notes <br /> Batch 2120262-EPA 5030B(P/T) <br /> Matrix Spike(2120262-MSI) Source:821.2231-02 Prepared&Analyzed: 12/16/02 <br /> Ethylbenzene 10.2 0.50 ug/I 10.0 ND 102 60-140 <br /> Xylenes(total) 29.7. 0.50 30.0 ND 99 60-140 <br /> Surrogate:a,a,a-Triuorotoluene 11.7 10.0 117 60-140 <br /> Matrix Spike Dup(2120262-MSDI) Source:5212231-02 Prepared&Analyzed: 12/16/02 <br /> Benzene 10.3 0.50 ugA io.0 ND 103 60.140 2 25 <br /> Toluene 10.5 0.50 10.0 ND 105 60-140 l 25 <br /> Ethylbenzene 10.2 0.50 10.0 ND 102 60.140 0 25 <br /> Xylenes(total) 29.9 0.50 30.0 ND 100 60-140 0.7 25 <br /> Surrogate:a a,a-Trifluorotoluene 11.8 10.0 118 60-140 <br /> Batch 2120331 -EPA 5030B(P/T) <br /> Blank(2120331-BLK1) Prepared&Analyzed: 12/18/02 <br /> Purgeable Hydrocarbons ND 50 ugll <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> i Xylenes(total) ND 0.50 " <br /> Surrogate:a,a,a-Tris luorotoluene 9.41 10.0 94 60-140 <br /> Blank(2120331-BLK2) Prepared&Analyzed: 12/19/02 <br /> Purgeable Hydrocarbons ND 50 ugll <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> i <br /> Surrogate:a,a,a-Trifluorotoluene 9.31 10.0 93 60-140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> f custody document. Unless otherwise staled,results are reported on a wet weight basis. <br /> \. This analytical report must be reproduced in its entirety. <br /> Page 10 of 15 <br />