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Sequoia r ,C Lane <br /> Walnut Creek,CA 94598 <br /> (925)988-96114 <br /> 673 <br /> Analytical <br /> FAX equo 98bs corn <br /> www sequolalabs coin <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 Umts Dilution Batch Prepared Analyzed Method Notes <br /> U-3 (W006495-04)Water Sampled 19-0un-00 10 50 Received 20-Jun-0017 30 <br /> Chloromethane ND 20 ug/l 1 0603007 03-.ful-00 03-Jul-00 EPA 80108 <br /> Vinyl chlonde ND 10 <br /> Bromomethane ND 10 " ^ <br /> Chloroethane ND 10 <br /> Trtchlorofluoromethane ND 050 ^ <br /> Freon 113 ND 10 <br /> IJ-Dichloroethene ND 10 <br /> Methylene chloride ND 10 <br /> trans-l,2-Dichloroethene ND 10 ^ " <br /> 1,1-Dichloroethane ND 10 <br /> cis-1,2Dichloroethene ND 10 <br /> Chloroform ND 10 <br /> 1,1,1-Trichloroethane ND 10 <br /> Carbon tetrachloride ND 10 w - <br /> 1,2-Dichloroethane ND 20 <br /> Trichloroethene <br /> ND 14 <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 /> —41,2-Trichloroethane ND 0 50 <br /> etre oroethene -- _- _- - -1-7 1-0 »- <br /> Dibromochloromethane ND 050 <br /> i,2-D6romoetliane- - ,T -T -- --ND -- ---l-0 - <br /> Chlorobenzene ND 10 ^ <br /> Bromoform ND 050 <br /> 1,2,3-Tnchloropmpane 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 Dibromodifluoromethane 840% 50-150 <br /> Surrogate 4 Bromofluorobenzene 860% 50-130 <br /> Sequoia Analytical-Walnut Creek The results in this rept apply to the samples analyzed in accordance with rhe chain of <br /> custody document This analytical report must be reproduced in its enbrety <br /> Page 8 of 20 <br />