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ane <br /> Sequoia " WiA 198 <br /> Walnut Creek CA 94598 <br /> (925)98&9600 <br /> Iwo Analytical FAX(925)eg73 <br /> www seralalabs alabs c con <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 Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> U-1 (W006495-02)Water Sampled 19-.Tun-0012 42 Received 20-Jun-00 17 30 <br /> Chloromethane ND 20 ugA 1 0G03007 03-Jul-00 03-Jul-00 EPA 8010E <br /> Vinyl chloride ND 10 <br /> Bromomethane ND 10 <br /> Chloroethane ND 10 <br /> Tnchlorofluoromethane ND 050 <br /> Freon 1]3 ND 10 <br /> IJ-Drchloroethene ND 10 <br /> Methylene chlonde ND 10 <br /> trans-l,2-Drchloroethene ND 10 <br /> 1,1-Drchloroethane ND 10 <br /> cis-1,2 Drchloroethene 11 10 <br /> Chloroform ND 10 <br /> 1,1,1-Tnchloroethane ND 10 <br /> Carbon tctrachlorde ND 10 <br /> 1,2-Dichloroethane ND 20 <br /> Trichloroethene 13 10 <br /> 1,2-Dichloropropane ND 10 •' " „ „ <br /> Bromodichloromethane ND 10 <br /> cis-1,3-Dichloropropene ND 10 „ <br /> trans-l;3-Dichloropropene ND 0 50 <br /> 1,1,2-Tnchloroethane ND 0 50 " " <br /> Tetrachloroethene— 7-1 —10 " — <br /> Dibromochloromethane ND 050 <br /> 1,2-Dr ramoethane = — -- - ----- -- — ND— - - - 1 0 <br /> Chlorobenzene ND l0 <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 850% 50-150 <br /> Surrogate 4-Bromgfluorobenzene 870% 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 entire <br /> Page 6 of 20 <br />