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885 <br /> vis Dr <br /> Sequoia f,CA 95037 <br /> Mogan Hit<,CA 95037 <br /> Analytical (408)776-9600 <br /> FAX(406)782 6308 <br /> www sequoialabs ccm <br /> Secor-Rancho Cordova Project ARCO#4932,Stockton,CA MLK0836 <br /> 3017 Kilgore Rd Suite 100 Project[Number ARCO#4932,Stockton,CA Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 12/20/02 08 11 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> EW-6 A 5(MLK0836-011 Soil Sampled 11/13/02 09 53 Received 11/21/02 12 00 <br /> Ethanol ND 90 ug/kg 224 2K26031 11/26/02 11/27/02 EPA 8260B <br /> tert-Butyl alcohol ND 45 " <br /> Methyl tert-butyl ether ND I 1 <br /> Di-isopropyl ether ND 1 f <br /> Ethyl tert-butyl ether ND 1 1 " <br /> tert-Amyl methyl ether ND 1 1 <br /> 1,2-Dichloroethane ND 1 I " <br /> 1,2-Dibromoethane(EDB) ND 1 1 <br /> Benzene ND I 1 <br /> Toluene ND 11 <br /> Ethylbenzene ND 11 <br /> Xylenes(total) ND i 1 " <br /> Gasoline Range Organics(C6-C10) ND 220 <br /> Surrogate 1,2-Dichloroethane-d4 936% 60-140 <br /> W-6 15 MLK0836-03 Sod Sampled 11/13/020958 Received 11/21/0212 00 <br /> hanol 110 81 ug/kg 202 2K26031 11/26/02 11/27102 EPA 8260B <br /> tert-Butyl alcohol ND 44 " <br /> Methyl tert-butyl ether 58 1 0 <br /> Di-isopropyl ether ND 1 0 " <br /> Ethyl tert-butyl ether ND 10 " <br /> tert-Amyl methyl ether ND 10 <br /> 1,2-Dichloroetbane ND 10 <br /> 1,2-Dibromoethane(EDB) ND 1 0 <br /> Benzene ND 10 <br /> Toluene ND l0 <br /> Ethylbenzene ND 1 0 <br /> Xylenes(total) ND I 0 <br /> Gasoline Range Organics(C6-C10) ND 200 " <br /> Surrogate 1,1-Dichloroethane-d4 926% 60-140 " <br /> Sequoia Analytical-Morgan Hill The results in this report apply to the samples analyzed to 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 3 of 7 <br />