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Sequoia 40``N ,CA Lane <br /> Walnut Creek,CA 94598 <br /> (925)988-9600 <br /> Analytical FAX(925)98&9673 <br /> FAX <br /> sequoialabs tom <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#0123 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 20-Jul-00 11 19 <br /> Volatile Organic Compounds by EPA Method 8010B <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-3 (W006495-04)Water Sampled 19-Jun-00 10 50 Received 20-Jun-0017 30 <br /> Chloromethane ND 20 ug/1 1 0G03007 03-Jul-00 03-Jul-00 EPA 8010E <br /> Vinyl chloride ND 10 <br /> Bromomethane ND 10 <br /> Chloroethane ND 10 <br /> Trichlorofluoromethane ND 050 <br /> Freon A 3 ND 10 <br /> 1,1-Dichloroethene ND 10 <br /> Methylene chloride ND 10 <br /> trans-l,2-Dichloroethene ND 10 <br /> 1,1-Dichloroethane ND 10 „ <br /> cis-1,2-Dichloroethene ND 10 " <br /> Chloroform ND 10 <br /> 1,1,1-Trichloroethane ND 10 <br /> Carbon tetrachloride ND 10 <br /> 1,2-Dichloroethane ND 20 <br /> Trichloroethene ND 10 <br /> 1,2-Dichloropropane ND 10 <br /> Bromodichloromethane ND 10 <br /> cis-1,3-Dichloropropene ND 10 <br /> trans-1,3-Dichloropropene ND 0 50 <br /> 1,1,2-Trichloroethane <br /> --Tetrachloroethene - <br /> Dibromochloromethane ND 050 " <br /> ---1,2-Dibromoethane- - - -- - - -- -- - ND-- =- --10 _- <br /> Chlorobenzene ND 10 <br /> Bromoform ND 050 <br /> 1,2,3-Tnchloropropane ND 050 " <br /> 1,1,2,2-Tetrachloroethane ND 050 <br /> 1,3-Dichlorobenzene ND 050 " + <br /> 1,4-Dichlorobenzene ND 10 <br /> 1,2-Dichlorobenzene ND 20 <br /> Surrogate Dtbromodifluoromethane 840% 50-150 " <br /> Surrogate 4-Bromofluorobenzene 860% 50-150 " <br /> Sequoia Analytical-Walnut Creek 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 enorety is <br /> Page 8 of 20 <br />