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404 N Wlget Lane <br /> j Sequoia Walnut Geek,CA 94598 <br /> 98 <br /> (925)988-9GO�-9600 <br /> p <br /> FAX(925)988-9673. <br /> %07 Analytical u°'a' °°^� <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Saute J Project Number Unocal#0123 Reported 7 <br /> Dublin CA,94568 Project Manager Deanna L Harding 20-Jul-0011 19 <br /> Volatile organic Compounds by EPA Method 8010B <br /> Sequoia Analytical -Walnut Creek <br /> Repotting <br /> Analyte Result Lout Units Dilution Batch Prepared Analyzed Method Notes <br /> U-1 (W006495-02)Water Sampled 19-Jun-M 12 42 Received 20-Jun-0017 30 <br /> Chloromethane ND 20 ug/1 1 0{303007 03-Ju1-00 03-Jul-00 EPA 8010E <br /> Vinyl chloride NTD10 <br /> Bromomethane ND 10 n n n n n n <br /> Chloroethane ND 10 <br /> Tnchlomflaoromethane ND 050 <br /> Freon 113 ND 10 <br /> 1,]-Dichloroethene ND 10 <br /> Methylene chloride ND 10 <br /> trans-1,2-Dichlomethene ND 10 " <br /> 1,1-Dichloroethane ND 10 <br /> cis-1,2 Dichloroethene 1 1 10 <br /> Chloroform ND 10 <br /> 1,1,1-Trichloroethane ND 10 <br /> Carbon tetrachlonde 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 « « n n « <br /> trans-1,3-Dichloropropene ND 0-50 ^ " " <br />—1,1,2-Trichloroethane ND—050 <br />—Tetrachloroethene 7-1 10 -- — <br /> Dibromochloromethane ND 050 n n n « « n <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 D2bromodifluoromethane 850% 50-150 " <br /> Surrogate 4 Bromafluoriobenzene 870% 50-150 " <br /> Sequoia Analytical-Walnut C mek The results in alas report apply to the samples analyzed in axordance with the chain of <br /> custody documenL This analytical report nnest be reproduced in its entirety 0 <br /> Page 6 of 20 <br />