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Sequoia 1455 McDowell Blvd North,Ste D <br /> Petaluma,CA 94954 <br /> (707 792-1865 <br /> VQFAnalytical wFAX(707)) 42 <br /> wwsequoialabs com <br /> Gettler-Ryan-Dublin Protect Tosco <br /> 6747 Sierra Ct,Suite J Protect Number 2701 West March Lane,Stockton,CA Reported <br /> Dublin CA,94568 Protect Manager Deanna Harding 02/27/01 I0 24 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spike Source /oREC RPD <br /> Analyte Result Limit Units Level Result /aREC Limits RPD <br /> limit Notes <br /> Batch 1020079-EPA 5030 waters <br /> Blank(1020079-BLK1) Prepared&Analyzed 02/04/01 <br /> Tert-amyl methyl ether ND 1 00 ug/l <br /> Tert-butyl alcohol ND 200 " <br /> Di-isopropyl ether ND <br /> 1 00 <br /> 1,2-Dibromoethane(EDB) ND 0 500 " <br /> 1,2-Dichloroethane ND 0 500 " <br /> Ethanol ND 100 " <br /> Ethyl tert-bury!ether ND 100 „ <br /> Methyl tert-butyl ether ND 0 500 " <br /> Surrogate Dtbromofluoromethane 520 500 104 88-118 <br /> Surrogate 1 1-Dtchloroethane-d4 532 500 106 81-130 <br /> Surrogate Toluene-d8 502 500 100 84-115 <br /> Alftnk(1020079-BLK2) Prepared&Analyzed 02/05/01 <br /> -amyl methyl ether ND 1 00 ug/l <br /> Tert-butyl alcohol ND 200 " <br /> Di-isopropyl ether ND 100 <br /> 1,2-Dibrotnoethane(EDB) ND 0 500 " <br /> 1,2-Dichloroethane ND 0 500 " <br /> Ethanol ND 100 <br /> Ethyl tert-butyl ether ND 1 00 <br /> Methyl cert-butyl ether ND 0 500 " <br /> Surrogate Dibromofluoromethane 517 500 103 88-118 <br /> Surrogate I 1-Dichloroethane-d4 523 500 105 81-130 <br /> Surrogate Toluene-d8 501 500 100 84-115 <br /> Blank(1020079-BLK3) Prepared&Analyzed 02/05/01 <br /> Tert-amyl methyl ether ND 100 ug/I <br /> Tert-butyl alcohol ND 200 „ <br /> Di-tsopropyl ether ND 1 00 " <br /> I,2-Dibromoethane(EDB) ND 0 500 " <br /> 1,2-Dtchloroethane ND 0 500 " <br /> Ethanol ND 100 " <br /> Ethyl tert-butyl ether ND 100 " <br /> Methyl tert-butyl ether ND 0 500 " <br /> Surrogate DtbromoJluoromethane S29 500 106 88-118 <br /> Surrogate 1 2-Dtchloroethane-d4 503 500 101 81-130 <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 /> Page 10 of 14 <br />