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�+ 885 Jarvis Drive <br /> a— ) <br /> Se uoia Morgan(40 77 95037 <br /> � (408)776-9600 <br /> iAnalytical FAX equoi labs c 08 <br /> www sequo�alabscom <br /> Secor-Rancho Cordova(ARCO) Project ARCO#2133,Rancho Cordova,CA MMI0807 <br /> 3017 Kilgore Rd Suite 100 Project Number N/P Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 10/20/03 16 45 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Morgan Hill <br /> Reporting <br /> Analyle Result Limil Units Dilution Batch Prepared Analyzed Method Notes <br /> E-9(MMI0807-07)Water Sampled 09/25/03 13 53 Received 09/29/03 18 30 <br /> Gasoline Range Organics(C6-C 10) ND 50 ug/I 1 3JO8045 10/08/03 to/09/03 EPA 8260B <br /> Ethanol ND 100 <br /> tert-Butyl alcohol ND 20 0-12 <br /> Methyl tert-butyl ether 18 0 50 <br /> Di-isopropyl ether ND 0 50 <br /> Ethyl tert-butyl ether ND 0 50 <br /> tert-Amyl methyl ether ND 050 <br /> 1,2-Dichloroethane ND 050 " <br /> 1,2-Dtbromoethane(EDB) ND 050 " <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene 10 050 " <br /> Xylenes(total) 1 6 0 50 <br /> Surrogate 1 2-Dtchloroethane-d4 102% 78-129 <br /> -10(MMI0807-08)Water Sampled 09/25/03 16 21 Received 09/29/03 18 30 <br /> Gasoline Range Organics(C6-C10) 6200 2500 ug/l 50 3JOSO45 10/08/03 10/09/03 EPA 8260B <br /> Ethanol ND 5000 <br /> tert-Butyl alcohol ND 1000 0-12 <br /> Methyl tert-butyl ether 1500 25 <br /> Di-isopropyl ether ND 25 <br /> Ethyl tert-butyl ether ND 25 <br /> tert-Amyl methyl ether 34 25 <br /> 1,2-Dtchloroethane ND 25 <br /> 1,2-Dtbromoethane(EDB) ND 25 <br /> Benzene 240 25 <br /> Toluene 110 25 <br /> Ethylbenzene 300 25 <br /> Xylenes(total) 1300 25 " <br /> Surrogate 1 2-Dtchloroethane-d4 109% 78-129 <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 /> 6 of 22 <br />