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819 Striker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> 4D (916)Analytical 921-9600 <br /> FAX <br /> i (916)921.0100 <br /> www.sequoialabs.com <br /> Kleinfelder-Stockton Projeet:Del Monte S506471 <br /> 2825 East Myrtle Street Project Number 12280 Reported: <br /> Stockton CA,95205 Project Managerjoe Zilles 07/06/05 18:35 <br /> Purgeable Hydrocarbons and BTEX by EPA 8015E/8021B- Quality Control <br /> Sequoia Analytical- Sacramento <br /> 1 <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 5060358-EPA 50308 PIT /.EPA 8015B/8021B <br /> Blank 5060358-BLK1 PEMared&.Analyzed:06/23/05 <br /> Gasoline Range Organics(C4-C12) 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:4-BF8(FID) 12.1 10.11 121 60440 <br /> Surrogate:a,a,a-TFT(PID) 8.77 10.0 88 60-140 <br /> Laboratog Control Sam le 5060358-BS1 Pr aced&Analyzed:06/23/05 <br /> Benzene 10.3 0.50 ugn 10.0 109 70-130 <br /> Toluene 9.79 0.50 10.0 98 70-130 <br /> Etbylbonzene 9.86 0.50 10.0 99 70.130 <br /> ti 7(ylcncs.(total) 2819 0.50 30,0 96 70-130 <br /> f <br /> Surrogate.,4-BFB(FID) 10,4 " 10.0 104 60-140 <br /> Surropm a,a,a-TFT(PID) 9.28 " 10.0 9.3 60.140 <br /> Matrix S ike 5060358-MSI Source,5506462.01 Pre ared&Analyzed:06/23/05 <br /> Benzene %97 0,50 U0 10.0 ND 100 60-140 <br /> Toluene 9.63 0,50 " 10.0 ND 96 60-140 <br /> Etbylbenzene 9.74 0150 " 10.0 ND 97 60-140 <br /> Xylenes(total) 28.7 0.50 " 30.0 ND 96 60140 <br /> Surrogate.,4-BP8(FID) 10.9 vo 109 60-140 <br /> Surrogate:a,a,a-TFT(PID) 9.14 10.0 91 60-140 <br /> E Matrix S Ike Du (5060358-MSD1) Source:5506462-01 Prepared&Anal zed:06/23/05 <br /> Benzene 10.2 0.50 ug/l 10.0 ND 102 60-140 2 25 <br /> Toluene 9.55 0.50 10.0 ND 96 60140 0.8 25 <br /> Ethylbenzene 9.68 0.50 10.0 ND 97 60-140 0.6 25 <br /> Xyienes(total) 28.5 0.50 30.0 ND 95 60-140 0.7 25 <br /> Surrogate:4-BFB(FID) 10.7 10.0 107 60-140 <br /> Surrogate:a,a,a-TFT(AID) 9.47 10.0 95 60-140 <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 /> This analytical report must be reproduced in its entirety. <br /> Page 5 of 7 <br />