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85 <br /> Sequoia 808)776 9600 <br /> ' Morgan Hill,CA 95037 <br /> (408)776-9600 <br /> 2-63 8 <br /> 408) <br /> FAX <br /> Analytical t7gbs.com <br /> www.s408)7 <br /> URS Corporation(11 Project: ARCO#434 MLJ0673 <br /> 2870 Gateway Oaks Dr., Ste 300 Project Number: ARCO#434 Reported: <br /> Sacramento CA,95833 Project Manager: Vern Elarth 11/12/02 14:57 <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 /> DI-1 (MLJ0673-07)Soil Sampled: 10/22/02 12:15 Received: 10/22/02 16:30 <br /> Total Xylenes ND 1.2 ug/kg 2.4400000 2128036 1028/02 10/29/02 EPA 8260B <br /> Benzene NO 1.2 " " " <br /> Ethylbenzene ND 1.2 " <br /> Toluene ND 1.2 " <br /> Surrogate:Dibromofluoromethane 103% 60-140 " <br /> Surrogate: 1,2-Dichloroethane-d4 104% 60-140 " <br /> Surrogate: Toluene-d8 82.2% 60-140 " <br /> Surrogate:4-BromoJluorobenzene 93.0% 60-140 " <br /> tert-Butyl alcohol NO 49 2.4400000 0-10 <br /> Methyl telt-butyl ether ND 1.2 " <br /> Di-isopropyl ether NO 1.2 " <br /> Ethyl tert-butyl ether ND 1.2 " <br /> tert-Amyl methyl ether NO 1.2 " <br /> Surrogate: 1,2-Dichloroethane-d4 104% 60-140 " <br /> DI-2(MLJ0673-08)Soil Sampled: 10/22/02 12:20 Received: 10/22/02 16:30 <br /> Total Xylenes ND 0.94 ug/kg 1.8899999 2128036 10/28/02 1029/02 EPA 8260B <br /> Benzene ND 0.94 " " <br /> Ethylbenzene ND 0.94 " <br /> Toluene ND 0.94 " <br /> Surrogate.:Dibromofluoromethane 104% 60-140 " <br /> Surrogate. 1,2-Dichloroethane-d4 103% 60-140 " <br /> Surrogate: Toluene-d8 88.0% 60-140 " <br /> Surrogate:4-Bromofluorobenzene 101 % 60-140 " <br /> tert-Butyl alcohol ND 38 1.8899999 0-10 <br /> Methyl tert-butyl ether NO 0.94 " <br /> Di-isopropyl ether ND 0.94 " <br /> Ethyl tert-butyl ether ND 0.94 " <br /> tert-Amyl methyl ether ND 0.94 " <br /> Surrogate: 1,2-Dichloroethane-d4 103% 60-140 " <br /> Sequoia Analytical-Morgan Hill 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 /> 9of15 <br />