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1Se uola IA55McpowPetaluma,CA`94954 <br /> �Y • Ste D <br /> (707)792-1865 <br /> Analytical www <br /> 7)792-0342 <br /> sequ <br /> www equoialabs corn <br /> URS Corp-Sacramento Project Arco Site 760,Lodi,CA P403600 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number G09JZ-0039 Reported <br /> Sacramento CA,95833 Project Manager Vernon P Elarth 04/08/04 14 36 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Petaluma <br /> Reporting <br /> Analyte Result /,rout Units Dilution Batch Prepared Analyzed Method Notes <br /> 11-26W(P403600-13)Water Sampled 03/22/04 16 15 Received 03/25/0411 00 <br /> Tert-amyl methyl ether ND 10 ug/[ 1 4040042 04/02/04 04/02/04 EPA 8260B <br /> Benzene ND 0 50 " <br /> Tert-butyl alcohol ND 20 " <br /> Di-isopropyl ether ND 10 <br /> 1,2-Dibromoethane(EDB) ND 050 " <br /> 1,2-Dichloroethane ND 0 50 " <br /> Ethanol ND 100 " <br /> Ethylbenzene ND 0 50 <br /> Ethyl tert-butyl ether ND 10 <br /> Methyl tert-butyl ether ND 0 50 " <br /> Toluene ND 0 50 <br /> Xylenes(total) 093 0 50 <br /> Surrogate Dibromofluoromethane 108% 84-122 <br /> Surrogate 1,2-Dichloroethane-d4 112% 74-135 " <br /> I*rrogate Toluene-d8 113% 84-119 „ <br /> rrogate 4-Bromofluorobenzene 114% 86-119 <br /> B-27-60(P403600-19)Soil Sampled 03/23/04 16 00 Received 03/25/04 11 00 <br /> Tert-amyl methyl ether ND 00050 mg/kg 1 4040052 04/02/04 04/02/04 EPA 8260B <br /> Benzene ND 00050 <br /> Tert-butyl alcohol ND 010 " <br /> Di-isopropyl ether ND 00050 " <br /> 1,2-Dibromoethane(EDB) ND 00050 <br /> 1,2-Dichloroethane ND 00050 <br /> Ethanol ND 020 " <br /> Ethylbenzene ND 00050 <br /> Ethyl tert-butyl ether ND 00050 <br /> Methyl tert-butyl ether ND 00050 " <br /> Toluene ND 00050 <br /> Xylenes(total) ND 00050 ,I " <br /> Surrogate Dibromofluoromethane 94% 81-126 " <br /> Surrogate 1 2-Dichloroelhane-d4 99% 73-131 " <br />' Surrogate Toluene-d8 103% 82-129 " <br /> Sequoia Analytical-Petaluma ne 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 entirely <br /> Page 7 of 18 <br />