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r Ir <br /> Sequoia 404 N WiLane <br /> Walnut Creek CA 94.548 <br /> (925)988-9600 <br /> Analytical FAX <br /> equo 488-9673 <br /> www sequofalabs coin <br /> Ier Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco SS#5886 <br /> Dublin CA,9456$ Reported <br /> Ptoject Manager Deanna L Harding 26-Feb-01 07 38 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lmut Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-3-BP(W102184-02)Water Sampled 07-Feb-01 07 35 Received 08-Feb-01 15 45 <br /> Ethanol ND 25000 ug/1 50 1B09007 09-Feb-01 09-Feb-01 EPA 8260B <br /> tent-Butyl alcohol ND 2500 <br /> Methyl tert-butyl ether 18000 100 " <br /> Di-fsapropyl ether <br /> ND 100 •, " <br /> Ethyl tert-butyl ether ND 100 " <br /> tert-Amyl methyl ether ND 100 " <br /> 1,2-Dichloroethane ND 100 " <br /> Ethylene dlbromtde ND 100 <br /> Surrogate Dibromofluoromethane 108% 50-150 <br /> Surrogate 1 2-Dichloroethane-l4 840% 50-150 " <br /> MW-3-AP(W102184-03)Water Sampled 07-Feb-01 10 55 Received 08-Feb-01 1545 <br /> Ethanol ND 250000 ugll 500 1B09007 12-Feb-01 12-Feb-01 EPA 8260B <br /> tert-Butyl alcohol ND 25000 <br /> Methyl tert-butyl ether 19000 1000 <br /> Opropyl ether ND 1000 ; <br /> tert-butyl ether ND 1000 <br /> tert-Amyl methyl ether ND 1000 <br /> 1,2-Dtchlorcethane ND 1000 " <br /> Ethylene dibromide ND I000 ^ <br /> Surrogate Dibromofluoromethane 100% 50-150 or <br /> Surrogate 1,2-Dtchloroethane,4`4 860% 50-150 <br /> CC-BP(W102184-04)Water Sampled 07-Feb-010745 Received 08-Feb-01 15 45 <br /> Ethanol <br /> Ethanolalcohol ND 25000 ugll 50 1B09007 12-Feb-01 12-Feb-ol EPA 8260E <br /> 28000 25000 500 " <br /> Methyl tert-butyl ether 240000 2000 " 1000 " ' <br /> Di-isopropyl ether 13-Feb-01 „ <br /> ND 100 s 1.o " <br /> Ethyl tert-butyl ether ND 100 " 12-Feb 01 <br /> „ <br /> tert-Amyl methyl ether 100 100 " <br /> 1,2-Dtchloroethane ND 100 " <br /> Ethylene dtbromtde ND 100 •• n ' <br /> Surrogate Dibromofluoromethane 106% 50-150 <br /> Surrogate 1,2-Dtchloroethane-l4 920% 50-150 <br /> Sequoia Analytical-Walnut Creek The results rn"usreportsp1y to the swnPles analysed rn accordance with the chmn of <br /> custody document Tins anrrlytrcal report must he reproduced rn 0 its ennrery <br /> Page 2 of 10 <br />