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Sequoia <br /> 819 Striker Avenue Suite 8 <br /> SQ(11llolc� Sacramento 95834 <br /> 916)219600 <br /> Analytical FAXcquot labsc21 00 <br /> www sequosalabs com <br /> G__ <br /> SECOR International-Rancho Cordova Project TOSCO 8671,Stockton,CA <br /> 3017 Kilgore Road,Suite 100 Project Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 01/14/02 15 16 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> North Creek Analytical-Bothell <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-6(a7 20'(5112270-19)Soil Sampled 12/13/0100 00 Received 12/17/01 1646 <br /> Ethanol ND 0 005 mg/kg 1 1L24025 12/24/01 12/24/01 EPA 8260E <br /> 1,2-Dibromoethane(EDB) ND 0 005 " <br /> 1,2-Dichloroethane(EDC) ND 0 005 " <br /> Diisopropyl ether ND 0 005 " <br /> Ethyl tert-butyl ether ND 0 005 " <br /> Methyl tert-butyl ether ND 0 005 " <br /> tert-Amyl Methyl Ether ND 0 005 " <br /> tert-Butyl Alcohol ND 050 " <br /> Surrogate 1 2-DCA-d4 75% 57-139 " <br /> Surrogate Toluene-d8 88% 66-122 " <br /> MW-6 30'(S112270-21)Soil Sampled 12/13/0100 00 Received 12/17/01 16 46 <br /> Ethanol ND 0 005 mglkg 1 1L24025 12/24/01 12/24/01 EPA 8260B <br /> 1,2-Dibromoethane(EDB) ND 0 005 " <br /> 1,2-Dichloroethane(EDC) ND 0 005 " <br /> vsopropyl ether ND 0 005 <br /> 'REWthyl tert-butyl ether ND 0 005 " <br /> Methyl tert-butyl ether ND 0 005 " <br /> tert-Amyl Methyl Ether ND 0 005 " <br /> tert-Butyl Alcohol ND 050 " <br /> Surrogate 12-DCA-d4 78% 57-139 <br /> Surrogate Toluene-d8 90% 66-122 " <br /> MW-6 P,35' S112270-22 Soil Sampled 12/13/0100 00 Received 12/17/01 16 46 <br /> Ethanol ND 0 005 mg/kg 1 1L24025 12/24/01 12/24/01 EPA 8260B <br /> 1,2-Dibromoethane(EDB) ND 0 005 " <br /> 1,2-Dichloroethane(EDC) ND 0 005 <br /> Diisopropyl ether ND 0 005 " <br /> Ethyl tert-butyl ether ND 0 005 " <br /> Methyl tert-butyl ether ND 0 005 " <br /> tert-Amyl Methyl Ether ND 0 005 " <br /> tert-Butyl Alcohol ND 0 50 " <br /> Surrogate 1 2-DCA-d4 70% 57-139 " <br /> Surrogate Toluene-d8 88% 66-122 <br /> *Sequoia 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 Page 11 of 27 <br />