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N. <br /> 1455 McDowell Blvd.North,Ste.D <br /> Sequoia Petaluma,CA <br /> 79 94954 <br /> -1865 <br /> (707)792-1865 <br /> AnalyticalFAX(quos www.sequoialabs.co Y wtvwsequoialabs.co <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 Ratchye 01702/01 14:10 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spike Source %R-EC RPD <br /> -�nalytc Result.---------timil- Units Levet�Result�%REC-Li'mits�RPD__,_ Limit Notes.- -- - <br /> latch 0120442 -EPA 5030 waters <br /> dank(0120442-BLK1) Prepared&Analyzed: 12/20/00 <br /> .ert-amyl methyl ether ND 1.00 ug/l <br /> 'enzene ND 0.500 " <br /> ert-butyl alcohol ND 20.0 " <br /> ti-isopropyl ether ND 1.00 " <br /> ,2-Dibromoethane(EDS) ND 0.500 " <br /> ,2-Dichloroethane ND 0.500 " <br /> thanol ND 100 " <br /> .thylbenzene ND 0.500 " <br /> .thyl tert-butyl ether ND 1.00 " <br /> lethyl tert-butyl ether ND 0.500 <br /> oluene ND 0.500 " <br /> xylenes(total) ND 0.500 " <br /> 'urrogate:Dibromofluoromethane 4.90 5.00 98.0 88-118 <br /> urrogale:l,2-Dichloroelhane-d4 4.61 5.00 91-2 81-130 <br /> urrogate:Toluene-d8 4.76 5.00 95.2 84-115 <br /> urrogate:4-BromoJluorobenzene 5.38 5.06 108 78-124 <br /> .CS(0120442-BS1) Prepared&Analyzed: 12/20/00 _ <br /> Benzene 4.93 0.500 ug/l 5.00 98.6 80-119 <br /> dethyl tert-butyl ether 5.11 0.500 5.00 102 79-118 <br /> :oluene 5.16 0.500 5.00 103 86-115 <br /> Currogate:Dibromoj%oromethane 4.91 " 5.00 98.2 88-118 <br /> urrogate:l,2-Dichloroethane-d4 4.61 5.00 92.2 81-130 <br /> urrogate:Toluene-d8 4.73 5.00 94.6 84-115 <br /> wrrogale:4-BromoJluorobenzene 4.98 5.00 99.6 78-114 <br /> Matrix Spike(0120442-MS1) Source: P012290-04 Prepared&Analyzed; 12/20/00 <br /> 3enzene 4.87 0.500 ug/l 5.00 ND 97.4 80-119 <br /> ,dethyl tert-butyl ether 5.03 0.500 5.00 ND 101 79-118 <br /> !'oluene 5.05 0.500 5.00 ND 101 86-115 <br /> surrogate:Dibromofluoromethane 4.90 5,00 98.0 88-118 <br /> surrogate:1,2-Dichloroethane-d4 4.79 5.00 95.8 81-130 <br /> ;urrogate:Toluene-d8 4.72 5.00 94.4 84-115 <br /> ;urrogate:4-Bromofluorobenzene 5.15 5.00 103 78-114 <br /> 0 <br /> Sequoia 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 />