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(ash dl <br /> 1455 McDowell Blvd.North,Ste,D <br /> Sequoia Petaluma,CA 94954 <br /> (707)792-1865 <br /> FAX42 <br /> Analytical ww. (707) labs.c rn <br /> wwwsequpialabs.com <br /> • <br /> Cambria Environmental-Emeryville Project: Equiva <br /> 6262 Hollis Street Project Number: 341 E. Main St.,Ripon,CA Reported: <br /> Emeryville CA,94608 Project Manager: Owen Rastchye - . . 11/29/00.16:19 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 01.10682-EPA 5030 waters <br /> Blan1QG1:1'068VB1:Kl) Prepared'&Analyzed 11'128100 <br /> Tert-amyl methyl ether ND 1.00 ug/I <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 4.78 5.00 95.6 88-118 <br /> Surrogate:l,1-Dichloroethane-d4 4.89 5.00 97.8 81-130 <br /> Surrogate:Toluene-d8 4.79 5.00 95.8 84-115 <br /> Surrogate:4-Bromofluorobenzene 4.63 5.00 92.6 78-124 <br /> Blank(0110682-BLK2) Prepared&Analyzed: t 1/29100, <br /> Tert-amyl methyl ether ND 1.00 ug/l <br /> Benzene ND 0.500 " <br /> Tert-butyl alcohol ND 20.0 It <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 Cert-butyl ether ND 1.00 " <br /> Methyl tert-butyl ether ND 0.500 " <br /> Toluene ND 0.500 " <br /> Xylencs(total) ND 0.500 " <br /> Surrogate:Dibromofluoromethane 4.62 5.00 91.4 88-118 <br />_ Surrogate:l,2-Dichloroethane-d4 4.42 5.00 88.4 81-130 <br /> Surrogate:Toluene-d8 4.74 5.00 94.8 84-115 <br /> Surrogate;4-Bromofluorobenzene 4.87 5.00 97.4 78-124 <br /> Sequoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chain 00 <br /> custody document. This analytical report must be reproduced in its entirety. <br /> ra Page 6 of 8 <br />