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819 <br /> j Sequoia CraStnto, AveSte8 <br /> Sacramento,CA 95634 <br /> (916)921-9600 <br /> FAX iW 6) 0Analytical wwwseguoial4bscom <br /> Gettler-Ryan-Dublin Project Former Unocal 2859,Stockton,CA 4 5308609 <br /> 6747 Sierra Court,Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 09/11/03 14 34 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-17(5308609-18)Water Saiiipied 08/26/03 12 30 Received-08/28/03 14 30 - - �- - - <br /> Tert-butyl alcohol ND 5 0 ugA 1 3090107 09/08/03 09/09/03 EPA 8260B <br /> Methyl tent-butyl ether ND 050 <br /> Di-isopropyl ether ND 0 50 <br /> Ethyl tert-butyl ether ND 050 <br /> Tert-amyl methyl ether ND 050 <br /> 1,2-Dichloroethane 170 050 <br /> 1,2-Dibromoethane(EDB) ND 0 50 " <br /> Surrogate 1,2-DCA-d4 87% 60-140 11 " <br /> MW-18(5308609-19)Water Sampled 08/26/031255 Received 08/28/03 14.30 <br /> Tert-butyl alcohol - ND 5 0 ug/1 1 3080407 08/29/03 08/29/03 EPA 8260B <br /> Methyl tert-butyl ether ND 050 " <br /> Di-isopropyl ether ND 050 <br /> Ethyl tert-butyl ether" ND - 0 50 <br /> Tert-amyl methyl ether ND 0 50 • <br /> 1,2-Dichloroethane 5 2 0 50 " <br /> 1,2-Dibromoethane(EDB) ND 050 " <br /> Surrogate 1,2-DCA-d4 72% 60-140 " <br /> MW-19(5308609-20)Water Sampled 08126103.14 15-Received 08128103_14 30—____- <br /> Tert-butyl alcohol ND 5 0 ug11 1 3080407 08/29/03 08/29/03 EPA 8260B <br /> --Methyl tert-butyl ether=== F_ - _ -..__ .NDS 0 50-r --„ „ „ „ ._ I-- .-I -- - ,.--- - <br /> Di-isopropyl ether ND 050 " <br /> —Ethyl tert-butyl ether---= - --- - - -___ -ND--_r -0 50 <br /> Tert-amyl methyl ether ND 050 " <br /> 1,2-Dichloroethane 4 4 050 " <br /> 1,2-Dibromoethane(EDS) ND 050 <br /> Surrogate 1,2-DCA-d4 70% 60-140 " <br /> Sequoia Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <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 13 of 20 <br />