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1455 McDowell Blvd.North,Ste.D <br /> Sequoia <br /> Petaluma,07)792-1865 <br /> FAX(707)792-0342 <br /> Analytical www.sequoialabs.com <br /> Cambria Environmental-Emeryville Project: Equiva <br /> 6262 Hollis Street Project Number: 341 East Main St,Ripon Reported: <br /> Emeryville CA,94608 Project Manager: Owen Ratchye 02/12/01 17:31 <br /> Volatile organic Compounds by EPA Method 8260B <br /> Sequoia Analytical- Petaluma <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> B 1 (P102118-03)Water Sampled: 02/02/01 12:00 Received: 02/06/01 16:30 <br /> Tert-amyl methyl ether ND 1.00 ugll 1 1020188 02/08/01 02/08/01 EPA 8260B <br /> Benzene ND 0.500 " <br /> Tert-butt'{alcohol ND 20.0 " <br /> Di-isopropyl ether ND 1.00 <br /> 1,2-Dibromoethane(EDB) ND 0.500 " <br /> 1,2-Dichloroethane ND 0.500 " <br /> Ethanol ND 100 " <br /> Ethylbenzene ND 0.500 <br /> Ethyl tert-butyl ether ND 1.00 " <br /> Methyl tent-butyl ether ND 0.500 " <br /> Toluene ND 0.500 " <br /> Xylenes(total) ND 0.500 <br /> Surrogate:Dibromofluoromethane 97.6% 88-118 " <br /> 'Wrogate: 1,2-Dichloroethane-d4 99.0% 81-130 " <br /> rogate: Toluene-d8 93.6% 84-115 II ii <br /> Surrogate: 4-Bromofluorobenzene 103 % 78-124 <br /> E 1(P102118-04)Water Sampled:02/02/01 12:00 Received: 02/06/01 16:30 <br /> Tert-amyl methyl ether ND 1.00 ug/i 1 1020188 02/08/01 02/08/01 EPA 826013 <br /> Benzene ND 0.500 " <br /> Tert-butyl alcohol ND 20.0 <br /> Di-isopropyl ether ND 1.00 " <br /> 1,2-Dibromoethane(EDB) ND 0.500 " <br /> 1,2-Dichloroethane ND 0.500 <br /> Ethanol ND 100 " <br /> Ethylbenzene ND 0.500 <br /> Ethyl tert-butyl ether ND 1.00 " <br /> Methyl tert-butyl ether ND 0.500 " <br /> Toluene ND 0.500 " <br /> Xylenes(total) ND 0.500 " <br /> Surrogate:Dibromofluoromethane 110% 88-118 " <br /> Surrogate: 1,2-Dichloroethane-d4 121 % 81-130 " <br /> Surrogate: Toluene-d8 104% 84-115 " <br /> Surrogate:4-Bromofluorobenzene III % 78-124 " <br /> quoin Analytical-Petalurna 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 /> Page 4 of 9 <br />