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Se1455 McDowell Blvd.North,Ste.D <br /> Sequoia Petaluma, 94954 <br /> (707))792-1865-1865 <br /> 4 <br /> a„) Analytical FAX(702) labs.c 42 <br /> wwwseguoias.com <br /> • <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 01/22/01 16:28 <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 /> 1-1 (P101325-01)Water Sampled: 01/11/01 14:00 Received:01/16/01 15:01 <br /> Tert-amyl methyl ether ND-2-00uO-2 1010440"—'01`/19/0101'/19/01 EPA 8260B <br /> Benzene ND 1.00 " <br /> Tert-butyl alcohol ND 40.0 " <br /> Di-isopropyl ether ND 2.00 " <br /> 1,2-Dibromoethane(EDB) ND I.00 " <br /> 1,2-Dichloroethane ND 1.00 " <br /> Ethanol ND 200 " <br /> Ethylbenzene ND 1.00 <br /> Ethyl tert-butyl ether ND 2.00 " <br /> Methyl tert-butyl ether 73.8 1.00 <br /> Toluene ND 1.00 " <br /> Xylenes(total) ND 1.00 <br /> Surrogate:Dibromofluoromethane 95.0% 88-118 " <br /> Surrogate: 1,2-Dichloroethane-d4 103% 81-130 " <br /> 11 <br /> Surrogate: Toluene-d8 102% 84-115 " <br /> Surrogate:4-Bromofluorobenzene 107% 78-124 " <br /> A-1 (P101325-02)Water Sampled:01/11/01 14:00 Received:01/16/01 15:01 <br /> Tert-amyl methyl ether ND 1.00 ugn 1 1010440 01/19/01 01/19/01 EPA 8260B <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 94.8% 88-118 " <br /> Surrogate: 1,2-Dichloroethane-d4 103% 81-130 " <br /> Surrogate: Toluene-d8 102% 84-115 " <br /> Surrogate:4-Bromofluorobenzene 112% 78-124 " <br /> Sequoia Analytical-Petaltnna The results in this report apply to the samples analyzed in accordance with the chain 010 <br /> custody document. This analytical report must be reproduced in its entirety. <br /> Page 3 of 8 <br />