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885 Jarvis Drive <br /> l CA 95037 <br /> Sequoia Morgan(408) 776 9600 <br /> a- ) <br /> o Analytical www <br /> seq(408)782-6308 <br /> om <br /> www sequoialabs coni <br /> Secor-Rancho Cordova(ARCO) Project ARCO#2133, Stockton,CA MPCO246 <br /> 3017 Kilgore Rd Suite 100 Project Number Arco#2133,Stockton,CA Reported <br /> Rancho Cordova CA,95670 Project Manager Brian Carey 04/11/06 09 55 <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 /> AS-8-S-12 5-060223(MPCO246-02)Soil Sampled 02/23/06 09 22 Received 03/04/06 08 00 <br /> tett-Amyl methyl ether ND 00050 mg/kg I 6CO9022 03/09/06 03/09/06 EPA 8260B <br /> Benzene ND 00050 " <br /> tert-Butyl alcohol ND 0 020 " <br /> Di-isopropyl ether ND 00050 - <br /> 1,2-Dibromoethane(EDB) ND 00050 " <br /> 1,2-Dtchloroethane ND 00050 <br /> " <br /> - _-- - �_ -- - - - -_--—3 ---- - -- -„ - - _ -- <br /> Ethanol ND - - 0 ]0- - <br />=Ethyl tert-butyl ether ND 00050 <br /> Ethylbenzene ND 00050 <br /> -Methyl tett-butyl ether - - - - -- ND--- -00050--- "- - -- - -- --" - - - -- --- " - - - - <br />�Toluene ND 0 005Q " " <br /> Xylenes(total) ND 00050 <br /> Gasoline Range Organics(C4-C12) 0 51 0 14 " <br /> Surrogate 1,2-Dtchloroethane-d4 94% 60-125 " <br /> Chlorobenzene ND 00050 " <br /> 1,2-Dichlorobenzene ND 00050 " <br /> 3-Dichlorobenzene ND 00050 " <br /> 1,4-Dichlorobenzene ND 00050 <br /> Surrogate Dibromofluoromethane 86% 55-125 <br /> Surrogate Toluene-d8 103 % 65-130 " <br /> Surrogate 4-Bromofiuorobenzene 122% 75-120 LHRY <br /> AS-8-S-15-060223 (MPCO246-03)Soil Sampled 02/23/06 09 20 Received 03/04/06 08 00 <br /> tert-Amyl methyl ether ND 00050 mg/kg I 6CO9022 03/09/06 03/09/06 EPA 82608 <br /> Benzene ND 00050 " <br /> tert-Butyl alcohol ND 0 020 " <br /> Di-isopropyl ether ND 00050 „ <br /> 1,2-Dibromoethane(EDB) ND 00050 " <br /> 1,2-Dichloroethane ND 00050 " <br /> Ethanol ND 010 <br /> Ethyl tert-butyl ether ND 00050 " <br /> Ethylbenzene ND 0 0050 " <br /> Methyl tert-butyl ether ND 00050 " <br /> Toluene ND 00050 " <br /> Xylenes(total) ND 00050 " <br /> Gasoline Range Organics(C4-C12) ND 0 10 " <br /> Surrogate 12-Dtchloroethane-d4 96% 60-125 " <br /> Chlorobenzene ND 00050 " <br /> 1 2-Dichlorobenzene ND 00050 <br /> Sequoia Analytical -Morgan Hill The results to 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 /> Page 7 of 28 <br />