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819 Striker Avenue,Suite 8 <br /> ['p�7 7 O Sacramento,CA 95834 <br /> 4 J 1. 4a (916)921-9600 <br /> FAX(916)92 1-0100 <br /> Analytical www.sequoialabs.com <br /> i . <br /> Kleinfelder-Stockton Project: Del Monte S305529 <br /> 2825 East Myrtle Street Project Number: 12280 c Reported: <br /> Stockton CA,95205 Project Manager: Joe Zilles 06/04/03 14:07 <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 3050463 -EPA 50305 PIT <br /> Blank(3050463-BLKI) Prepared&Analyzed: 05/28/03 <br /> Purgeable Hydrocarbons ND 50 ugli <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 10.4 10.0 104 60-140 <br /> Laboratory Control Sample 3050463-BS]) Prepared&Analyzed.05/28/03 <br /> Benzene 8.97 0.50 ug11 10.0 90 70-130 <br /> Toluene 8.93 0150 . 1.0.0 89 70-130 <br /> Ethylbenzene 8.99 0.50 10.0 90 70-130 <br /> '.enes(total) 24.9 0.50 30.0 83 70-130 <br /> Surrogate:a,a,a-Trifluorololuene 10.0 10.0 100 60-140- <br /> Matrix Spike(3050463-MSI) Source: S305529-02 Prepared&Analyzed: 05/28/03 <br /> Benzene 8.O1 0.50 ug/l 10.0 ND 80 60-140 <br /> Toluene 8.81 0.50 10.0 ND 88 60-140 <br /> Ethylbenzene 8.97 0.50 10.0 ND 90 60440 <br /> Xylenes(total) 24.8 0.50 30.0 ND 83 60-140 <br /> Surrogate:a,a,a-Tris luorotoltoene 9.93 10.0 99 60-140 <br /> Matrix Spike Dup(3050463-MSD1) Source:S305529-02 Prepared&Analyzed: 05/28/03 <br /> Benzene 8.23 0.50 ug/1 10,0 ND 82- 60-140 3 25 <br /> Toluene . 9.04 0.50 10.0 ND 90 60-140 3 25 <br /> Ethylbenzene 9.19 0.50. 10.0 ND 92 60-140 2 25 <br /> Xylenes(total) 25.4 0.50 30.0 ND 85 60-140 2 25 <br /> Surrogate:a,a,a-TriJluorotofuene 10.1 10.0 101 60-140 <br /> quoia 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 7 of 11 <br />