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Sequoia <br /> e qu o 7 af.Y 81.9 Striker Avenue,Suite 8 <br /> 1 Sacramento,CA 95834 <br /> (916)921-9600 <br /> 1 }. FAX(916)921=0100 <br /> Analytical www.sequoialabs.com <br /> Kleinfelder-Stockton Project: Del Monte S304276 <br /> 2825 East Myrtle Street ProjectNumber: 12280.REM2 Reported; <br /> Stockton CA,95205 Project Manager: Tony Martin 04/23/03 19:07 <br /> Gas oline\BTEX\Oxygenates by EPA method 8260B - Quality Control <br /> Sequoia Analytical - Sacramento <br /> . Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level . Result "/.REC Limits RPD Limit Notes <br /> Batch 3040177-EPA 5030B [PIT] _ <br /> Blank(3040177-BLK2) Prepared&Analyzed: 04/11/03 _ <br /> 'Ethanol ND 0.20 mg/kg - <br /> Tert-butyl alcohol ND 0.050 " <br /> Methyl tert-butyl ether ND 0.0050 " <br /> Di-isopropyl ether ND 0.0050 " <br /> Ethyl tert-butyl ether ND 0.0054 ' <br /> Tert-amyl rnethyi ether ND 0.0050 " <br /> 1,2-Dichloroethane ND 0.0050 <br /> 1,2-Dibromoethane(EDB) ND 0.0050 " <br /> Benzene ND 0.0050 " <br /> Ethylbenzene ND 0.0050 " <br /> '".iuene ND 0.0050 <br /> -nes(total)` ND 0.010 " <br /> Gasoline(C6-C10) ND.- LO <br /> Surrogate:1.2-DCA-d4 0.0530 0.0500 106 60-140 <br /> Surrogate:Toluene-d8 0.0563 .0.0500 113 60-140 <br /> Surrogate:4-BFB 0.0635 0.0500 127 60-140 <br /> Laboratory Control Sample(3040177-BS2) Prepared&Analyzed:04/11/03 <br /> Methyl tert-butyl ether 0.0437 0.0050• mg/kg 0.0448 98 60-140 <br /> Benzene 0.0273 0.0054 . 0.0272 100- 70-130 <br /> Toluene 0.159 0.0050 0.167 95 70-130 - <br /> Gasoline(C6-C10) . 1.92 LO 2.20 87 . 70-130 <br /> Surrogate:1,2-DCA-d4 -- - ----- 0.0534 0.0500 107 60-140 <br /> Surrogate:Toluene-d8 0.0548 0.0500 110 60-140 <br /> Surrogate:4-BFB 0.0543 0.0500 109 60-140 <br /> Matrix Spike(3040177-MS1) _ Source:5304254-01 Prepared:04/10/03 Analyzed:0_4/11103 <br /> Methyl tert-butyl ether T 0.0418 0.0050 mg/kg 0.0448 ND 93 60-140 <br /> Benzene 0.0256 0.0050 " 0.0272 ND 94 60-140 <br /> Toluene 0.160 0.0050 0.167 ND 96 60-140 <br /> Gasoline(C6-G 10) 1.74 LO 2.20 ND 79 60-140 <br /> Surrogate:l,2-DCA-d4 .0.0504 0.0500 101 60-140 <br /> Surrogate:Toluene-d8 0.0549 0.0500 110 60-140 <br /> Surrogate:4-BFB 0.0542. 0.0500 108 60-140 <br /> I <br /> lucia 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 9 <br />