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i <br /> 5 � <br /> i1 <br /> Sequoia 8$5 Jarvis Drive <br /> Morgan Hill,CA 95037 <br /> (408)776-9600 <br /> Analytical FAX(408)782-6308 <br /> www.sequoialabs.com <br /> r <br /> URS Corporation[Arcot] Project:ARCO#2168,Stockton,CA MOK0183 <br />{ 2870 Gateway Oaks Dr.,Ste 300 <br /> I � Y Project Number:GOC8 1-0010 Reported: <br /> Sacramento CA,95833 Project ManagerNernon P.Elarth I1/23/05 09:40 <br /> t . <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note <br /> EW-1-20(MOK0183-01)Soil Sampled:11/03/05 09:50 Received:11/04/0511:10 <br /> tert-Am l methyl ether <br /> Y Y ND 0.0044 mg/kg 0.87 5K16007 11/16/05 11116!05 EPA 82608 <br /> Benzene ND 0.0044 " <br /> tert-Butyl alcohol ND 0.017 <br /> Di-isopropyl ether ND 0.0044 <br /> 1,2-Dibromoethane(EDB) ND 0.0044 <br /> 1,2-Dichloroethane ND 0.0044 <br /> t Ethanol ND 0.087 rc <br /> Ethyl tert-butyl ether ND 0.0044 " <br /> Ethylbenzene ND 0.0044 <br /> Methyl tert-butyl ether ND 0.0044 <br /> Toluene ND 0.0044 <br /> Xylenes(total) ND 0.0044 <br /> Gasoline Range Organics(C4-C12) ND 0.087 „ <br /> Surrogate: 1,2-Dichloroethane-d4 119% 60-125 " <br /> EW-2-20(MOK0183-02)Soil Sampled:11/03/05 13:40 Received: 11/04/05 11:10 <br /> tert-Amyl methyl ether ND 0.003$ mg/kg 0.75 5K16007 11/16/05 11/16!05 EPA 8260E <br /> f i Benzene ND 0.0038 <br /> tert-Butyl alcohol ND 0.015 <br /> ! i Di-isopropyl ether ND 0.0038 <br /> 1,2-Dibromoethane(EDB) ND 0.0038 <br /> 1,2-Dichloroethane ND 0.0038 <br /> Ethanol ND 0.075 IC <br /> Ethyl tert-butyl ether ND 0.0038 " <br /> Ethylbenzene ND 0.0038 <br /> Methyl tert-butyl ether ND 0.0038 " <br /> [ Toluene ND 0.0038 " <br /> Xylenes(total) ND 0.003$ <br /> Gasoline Range Organics(C4-C12) ND 0.075 <br /> Surrogate: 1,2-Dichloroethane-d4 117% 60-125 <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.Unless otherwise stated,results are reported on a wet weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> ! y <br /> Page 3 of 6 <br /> 1 : <br />