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Sequoia Walnut Cr Creek.CA 941598 <br /> (925)988-9600 <br /> m%ff Analytical FAX(925)988-9673 <br /> 'Jettler Ryan,Inc.-Dublin Project: Unocal <br /> 6747 Sierra Court Suite J Project Number: Unocal SS# 11195 Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 09-Sep-99 17:35 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-11 (W908271-1t)Water Sampled: t1-Aug-99 13:35 Received: 12-Aug-99 14:25 <br /> Ethanol ND 250000 ug/1 500 9H25009 24-Aug-99 25-Aug-99 EPA 8260A <br /> tert-Butyl alcohol ND 50000 <br /> Methyl tert-butyl ether 16000 1000 <br /> Di-isopropyl ether ND 1000 " <br /> Ethyl tert-butyl ether ND 1000 " <br /> tert-Amyl methyl ether ND 1000 " <br /> Surrogate:Dibro»rofluoronrethane 102 % 50-150 <br /> Surrogate: 1,2-Dichloroethane-d4 100 % 50-150 <br /> MW-12(W908271-12)Water Sampled: 11-Aug-99 13:00 Received: 12-Aug-99 14:25 <br /> Ethanol ND 500 ug/I l 9H25009 24-Aug-99 25-Aug-99 EPA 8260A <br /> tent-Butvl alcohol ND 100 " <br /> Methvl tert-butyl ether ND 2,0 <br /> Di-isopropyl ether ND 2.0 " <br /> Ethvl tert-butyl ether ND 2.0 <br /> -Amyl methyl ether ND 2.0 <br /> Surrogate:Dibronrojhforonrethane 102 % 50-150 <br /> Surrogate: 1,2-Dichloroethane-d4 100 % 50-150 <br /> Sequoia Analytical-Walnut Creek The rendis in this report apply to the.scnuple.s analyzed in ereorrlrmee with the chin of <br /> } cthstody docrunent.This am1wical report must be reprocluced irr i!s entirety. <br /> l - <br /> Ju e E'eb ey, Prqject Ma ger IY Pave 5 of 7 <br />