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r_ <br /> a— ) 8 19 Sinker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> Analytical FAX(916)921-9600 - <br /> (91b)921-0100 <br /> www sequoislabs com <br /> Gettler-Ryan-Dublin Project, Former Unocal 2859,Stockton,CA 5211346 <br /> 6747 Sierra Court,Ste ] Project Number NIA Reported <br /> Dublin CA,94568 Project Manager Deanna L. Harding 12/04/02 14 47 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limn Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 l (5211346-12)Water Sampled—]1/09/02 16 20 Received- 11/1210209 45 <br /> Tert-butyl alcohol ND 100 ug/1 1 2110313 4 11/20/02 11/21/02 EPA 8260B <br /> Methyl tert-butyl ether ND 20 1. " - ^ " " c <br /> D!-isopropyl ether ND 20 <br /> Ethyl teri-butyl ether ND 20 <br /> Ter(-amyl methyl ether ND 20 <br /> 1,2-Dichleroethane 14 20 <br /> 1,2-Dibromoethane(EDB) ND 20 <br /> Surrogate 1,2-DCA-d4 117% 60-140 " <br /> MW-12(5211346-13)Water Sampled 11/09/02 15 48 Received 11/12/02 09 45 _ <br /> Tert-butyl alcohol ND 100 ugA 1 2110313 11/20/02 11/21/02 EPA 8260B <br /> Methyl tert-butyl ether ND 20 " " ^ <br /> Di-isopropyl ether ND 20 - <br /> Ethyl tent-butyl ether ND 20 <br /> Tert-amyl methyl ether ND 2 0 " <br /> 1,2-Dichloroethane ND 20 <br /> 1,2-Dibromoethane(EDB) ND 20 ^ ^ <br /> Surrogate 1,2-DCA-d4 101 % 60-140 ^ <br /> MW-13(5211346-14)Water Sampled 11/07/0715 17 Received 11/12/020945 _ <br /> Teri-butyl alcohol ND 100 ug/1 1 2110313 11/20/02 11/21/02 EPA 8260B <br />=Methyl teri-butyl ether ND 2 0 - <br /> D!-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether -- ND----2 0 ------ <br /> Tert-amyl methyl ether ND 20 ^ <br /> -`W1;2--Dichl6-roethane--- --- --__`ND-- f -_T YoO - <br /> 1,2-Dibromoethane(EDB) ND 20 <br /> Surrogate 1,2-DCA-d4 81 % 60-140 ^ <br /> Sequoia Analytical - Sacramento The t esults to this report apply to the samples analyzed in accordance with the chain 00i <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page l l of 22 <br />