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a— ) <br /> 685,CA 5037 <br /> Sequoia Morgan Hill,1CA 95037 <br /> (408)7769600 <br /> W Analytical FAX(408)782-6308 <br /> www sequoiala6s com• <br /> Secor-Rancho Cordova(ARCO) Proi-t ARCO#4932,Stockton,CA MND0090 <br /> 3017 Kilgore Rd Suite 100 Project Number N/P Deported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 04/19/04 17 58 <br /> Purgeable Hydrocarbons (C6-C10) & Volatile Organic Compounds by EPA method 8260B - Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC limits RPD Lima Notes <br /> Batch 4D13002-EPA 5030B P/T <br /> Laboratory Control Sample Dup(4D13002-BSD2) Prepared&Analyzed 04/13/04 <br /> Gasoline Range Organics(C4-C 12) 471 50 ug/l 440 107 70-124 270 20 QC21 <br /> Surrogate 1,1 Dichloroethane-d4 482 500 964 78 129 <br /> I� <br /> Sequoia Analytical-Morgan Hill 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 to its entirety <br /> Page 10 of 15 <br />