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EN.Y <br /> 1455 McDowell Blvd.North,Ste,D <br /> Petaluma,CA 94954 <br /> Sequoia (707)792-1865 <br /> FAX(707)792-0342 <br /> 'Wr Analytical www.sequoialabs.com <br /> '0 <br /> Cambria Environmental-Emeryville Project: Equiva <br /> 6262 Hollis Street Project Number: 341 East Main Street,Ripon Reported: <br /> Emeryville CA,94608 Project Manager: Owen Rastchye 10/26/00 15:04 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> 1-1 (P010365-01)Water Sampled: 10/13/00 00:00 Received: 10/16/00 13:30 <br /> 1,2-_Dibromoethane ND 6.66 ug/1 3.33 0100129 10/25/00 10/25/00 EPA 8260B <br /> 1,2-Dichloroethane ND 6-66 " " 10/25100 " <br /> Benzene ND 6.66 <br /> Toluene ND 6.66 <br /> Ethylbenzene ND 6.66 <br /> Xylenes(total) ND 6.66 <br /> Methyl tert-butyl ether 256 6.66 <br /> Di-isopropyl ether ND 6-66 " <br /> Tert-butyl alcohol ND 333 <br /> Ethyl tent-butyl ether ND 6.66 <br /> Tert-amyl methyl ether ---- -- ---- ND— _ 6.66----_ — ---- „ „ _ ----- <br /> Surrogate: 1,2-Dichloroethane-d4 104 % 76.0-114 " <br /> Surrogate: Toluene-d8 98.0% 88.0-110 " <br /> Surrogate: 4-BFB 97.2% 86.0-115 <br /> A-1 (P010365-02)Water Sampled: 10/13/00 00:00 Received: 10/16/00 13:30 <br /> 1,2-Dichloroethane ND 2.00 ug/l 1 0100119 10/24/00 10/24/00 EPA 8260B <br /> 1,2-Dibromoethane ND 2.00 " <br /> Benzene ND 2.00 10/24/00 " <br /> Toluene ND 2.00 <br /> Ethylbenzene ND 2.00 <br /> Xylenes(total) ND 2.00 <br /> Methyl tert-butyl ether ND 2.00 " <br /> Di-isopropyl ether ND 2.00 " <br /> Tert-butyl alcohol ND 100 <br /> Ethyl tert-butyl ether ND 2.00 " <br /> Tert-amyl methyl ether __ _ ND 2.00 <br /> Surrogate: 1,2-Dichloroethane-d4 — 111 % 76.0-114 " <br /> Surrogate: Toluene-d8 100% 88.0-110 " <br /> Surrogate: 4-BFB 97.6% 86.0-115 <br /> Sequoia Analytical -Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br /> � <br /> custody document. This analytical report must be reproduced in its entirety. <br /> Page 3 of 10 <br />