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' <br /> f _., 885 Jarvis Drive <br /> 1 Sequoia Morgan Hill,CA 95037 <br /> (408)776-9600 <br /> Analytical www.sequoialabs.com(408)782-6308 <br /> 1L��. wwsequoialabs.com <br /> URS Corporation[I I Project: ARCO#434 MLJ0673 <br /> 2870 Gateway Oaks Dr.,Ste 300 Project Number: ARCO 4434 Reported: <br /> Sacramento CA,95833 Project Manager: Vern Elarth 11/12/02 14:57 <br /> i <br /> Volatile Organic Compounds by EPAMethod 8260B <br /> Sequoia Analytical -Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> DI-I (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 2.128036 10/28/02 10/29/02 EPA 8260B <br /> Benzene ND 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 ,I <br /> Surrogate: Toluene-d8 82.2% 60-140 <br /> Surrogate:4-Bromofluorobenzene 93.0% 60-140 " <br /> tert-Butyl alcohol ND 49 ,. 2.4400000 f' " 0-10 <br /> Methyl tert-butyl ether ND 1.2 <br /> Di-isopropyl ether ND 1.2 <br /> Ethyl tert-butyl ether ND 1.2 " <br /> ten-Amyl methyl ether _ _ ND 1.2 <br /> Surrogate: 1,2-Dichloroethane-d4 104% 60-140 " <br /> Dl-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 2J28036 10/28/02 10/29/02 EPA 8260E <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 I. <br /> i Surrogate:4-Bromofluorobenzene 101 % " 60-140 " <br /> tert-Butyl alcohol ND 38 1.8899999 0-10 <br /> Methyl tert-butyl ether ND 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 /> I <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. This analytical report must be reproduced in its entirety. <br /> i <br /> 9of15 <br />