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819 Straker Avenue,Suite 8 <br /> Sequoia Sacramento CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> www sequoialabs com <br /> er- <br /> SECOR International-Rancho Cordova Project Tosco 1205,Lathrop,CA <br /> 3017 Kilgore Road,Swte 100 ProlectNumber NIA Rel-rted <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 04/10/02 18 08 <br /> Volatile Organic Compounds by EPA Method 82605 <br /> Sequoia Analytical- Sacramento <br /> Reportmg <br /> Analyte Result Lmut Units Dilution Batch Prepared Analyzed Method Notes <br /> INF#1 5203428-0 Air Sampled 03/27/02 09 30 Received-03/27/0214 30 R-05 <br /> Tert-butyl alcohol ND 500 mg/m'Air 10 2030357 03/28/02 03/28/02 EPA 8260B <br /> Methyl tert-butyl ether ND so " <br /> Di-isopropyl ether ND 50 <br /> Ethyl tert-butyl ether ND 50 <br /> Tert-amyl methyl ether ND 50 " <br /> Ethanol ND 30004 " <br /> 1,2-Dichloroethane PID 50 " <br /> Ethylene dibrotmde ND 50 <br /> Surrogate 1,2-DCA-d4 108% 60-140 " <br /> �equola 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 to entirety <br /> Page Page 8 of 14 <br />