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1455 McDowell Blvd,North,Ste,D <br /> 4954 <br /> Sequoia Petal(07) 79291865 <br /> FAX(707)792-0342 <br /> Analytical www.sequoialabs.com <br /> Cambria Environmental-Oakland Project: Equiva <br /> 1144 65th St.,Suite C Project Number: 341 E.Main St.,Ripon Reported: <br /> Oakland CA,94608 Project Manager: Owen Ratchye 10/06/00 17:59 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Petaluma <br /> Reporting <br /> Analyte Result Limit Units Dilution Hatch Prepared Analyzed Method Notes <br /> 1-1 (P010019-01)Water Sampled:09/29/00 09:00 Received: 10/02/00 17:30 <br /> Tert-amyl methyl ether ND 20.0 ug/l 20 0100064 10/03/00 10/03/00 BPA 8260B <br /> Tert-butyl alcohol ND 400 " <br /> Di-isopropyl ether ND 20.0 " <br /> Ethanol ND 2000 " <br /> Ethyl tent-butyl ether ND 20.0 " <br /> Methyl tert-butyl ether 661_2_ 10.4 <br /> Surrogate:Dibromofluoromethane 111 % 88-118 " <br /> Surrogate: 1,2-Dichloroethane-d4 111 % 81-130 " <br /> Surrogate: Toluene-d8 100% 84-115 " <br /> A-1 (P010019-02)Water Sampled: 09/29/00 09:00 Received: 10/02/00 17:30 <br /> Tert-amyl methyl ether ND I.00 ug/l 1 0100064 10/03/00 10/03/00 PPA 8260B <br /> Tert-butyl alcohol ND 20.0 " <br /> Di-isopropyl ether ND 1.000 " <br /> nol ND 100 <br /> I tent-butyl ether ND 1.00 " <br /> Methyl tent-butyl ether ND 0.500 " <br /> Surrogate:Dibromofluoromethane 112 % 88-118 " <br /> C„rroga1e• 1,2_ ichloroa h no_d115% 81-130 ^ „ <br /> Surrogate: Toluene-d8 100% 84-115 " <br /> B-1 (P010019-03)Water Sampled: 09/29/00 09:00 Received: 10/02/00 17:30 <br /> Tert-amyl methyl ether ND 1.00 ug/l 1 0100064 10/03/00 10/04/00 EPA 8260B <br /> Tert-butyl alcohol ND 20.0 " <br /> Di-isopropyl ether ND 1.00 " <br /> Ethanol ND 100 " <br /> Ethyl tert-butyl ether ND 1.00 " <br /> Methyl tett-butyl ether ND 0.500 " <br /> Surrogate:Dibromofluoromethane 107% 88-118 " <br /> Surrogate: 1,2-Dichloroethane-d4 108% 81-130 " <br /> Surrogate: Toluene-d8 99.8% 84-115 " <br /> quoia Analytical-Petaluina The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. nis analytical report must be reproduced in its entirety. <br /> Page 4 of 9 <br />