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1455 McDowell Blvd.North,Ste.D <br /> Sequoia Petaluma, 94954 <br /> -1865 <br /> (707)7979 2-1865 <br /> FAX(707)792-0342 <br /> Analytical wwwsequoialabs.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 Rastchye 11/03/00 09:31 <br /> Volatile Organic Compounds by EPA Method 826013- 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 0110022-EPA 5030 waters <br /> Blank(0110022-BLKI) _ _ Prepared&Analyzed: 11/01/00 <br /> Teri-amyl methyl ether ND 1.00 ug/1 <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 /> -agate:Dibromofluoromethane 4.82 5.00 96.4 88-118 <br /> rrogale: 1.1-Dichloroethane-d4 4.87 5.00 97.4 81-130 <br /> Surrogate: Toluene-d8 4.78 5.00 95.6 84-115 <br /> Surrogate:4-Bromofluorobenzene 4.60 5.00 91.0 78-124 <br /> LCS(0110022-BSI) -T- - Prepared&Analyzed: I Ii01/00 <br /> Benzene 5.24 0.500 ug/I 5.00 105 80-119 <br /> Methyl tert-butyl ether 5.27 0.500 5.00 105 79-118 <br /> Toluene 4.97 0.500 5.00 99.4 86-115 <br /> Surrogate:Dibroinofluoromethane 4.91 F 5.00 98.2 88-118 <br /> Surrogate, 1,2-Dichloroethane-d4 5.37 5.00 107 81-130 <br /> Surrogate: Toluene-d8 4.6.3 5.00 92.6 84-115 <br /> Surrogate:4-Brotnofluarobenzene 4.63 5.00 92.6 78-124 <br /> Matrix Spike(01 10022-MSI)--- _ Source: P010724-03 Prepared&Analyzed: 11/01/00 <br /> Benzene Y 5.40 0.500 ug/l 5.00 ND 108 80-119 <br /> Methyl tert-butyl ether 5.11 0.500 5.00 ND 102 79-118 <br /> Toluene 5.17 0.500 5.00 ND 103 86-115 <br /> Surrogate:Dibromofluoromethane J 4.94 5.00 98.8 86-118 <br /> Surrogate: 1,2-Dichloroethane-d4 5.33 5.00 107 81-130 <br /> Surrogate: Toluene-d8 4.86 5.00 97.2 84-115 <br /> Surrogate:4-Bromofluorobenzene 4.86 5.00 97.2 78-124 <br /> quoia Analytical-Petaluma 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 /> 6 Page 7 of 9 <br />