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Sequoia Bram nto,CA 58e4 <br /> Sacramento,CA 95$34 <br /> Analytical (916)921-9600 <br /> FAX(916)921-0109 <br /> www sequotalabs com <br /> Gettler-Ryan Dublin Project Unocal 5098, Stockton,CA <br /> 7 Sterna Court, Ste 7 S2 3 00]0 <br /> Project Number N/A Reported <br /> In CA,94568 Project Manager Deanna L Harding 10/14/02 18 46 <br /> Gasoline\BTEXIOxygenates by EPA method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> alyte Result Limit Units Dilution Batch Prepared Anaiyzed Method Notes <br /> W-1 5210010-02 Water Sampled 09/23/02 15 07 Received 09/26/02 18 35 <br /> rt-butyl alcohol ND 25 ug/i 5 2100083 10/04/02 10/05/02 EPA 8260B <br /> ethyl tert-butyl ether ND 25 <br /> Di-isopropyl ether ND 2 5 „ <br /> ryl tent-butyl ether ND 2 5 <br /> t-amyl methyl ether ND 25 „ <br /> 1,2-Di,Chloroethane ND 2 5 <br /> IDibromoethane(EDB) ND 2 5 <br /> nzene 520 25 <br /> Ethylbenzene 80 2 S <br />#1enes <br /> uene 31 25 " <br /> „ <br /> (total) 71 25 <br /> ",gate Toluene-d8 111 % 60-140 " „ „ <br /> Surrogate 4-BFB 90% 60-140 <br /> U2 (S210070-03) <br /> gate 1,2-DC,4-d4 103% 60-140 " <br /> Water Sampled 09/24/0211 09 Received 09/26/02 18 35 <br /> -butyl alcohol ND 100 ug/l 20 2100085 10/05/02 10/05/02 EPA 8260B <br /> Wart-butyl ether ND 10 <br /> ropyl ether ND 10 <br /> ethyl tert-butyl ether ND 10 „ <br /> IF-amyl methyl ether ND 10 " <br /> l Dicbloroethane <br /> ND 10 „ <br />,2-Dibromoethane(EDB) ND 10 <br /> tze <br /> ylenzene n2000 10b 970 10 „ <br /> ene 190 10 <br />,ylenes(total) 5300 10 „ <br /> logate Toluene-d8 112% 60-140 <br /> ogate 4-BFB 109% 60-140 „ <br /> urrogate 1,2-DC-4-d4 103 % 60-140 <br /> t <br /> ola Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> to custody document Unless otherwise stated results are t epoxied on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 10 of 119 <br />