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Sequoia 8 f 9 SirikerA%e Su 8 <br /> Sacramemo CA 95814 <br /> Analytical (916)921 FAX{916)921 9600 <br /> www aequolalahy <br /> Gettler-Ryan-Dublin Prolect Former Unocal 5098 Stockton CA <br /> 6747 Sierra Court, Ste 3 Protect Number NIA S305190 ' <br /> Reported <br /> Dublin CA,94568 Protect Manager Deanna L Harding 05/21/03 17 32 <br /> Gasoline\BTEXIOxygenates by EPA method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting , <br /> Analyte Resull Limn Umis Dilution Batch Prepared Analyzed Method Noies <br /> MVV-25D(S305190-34)Water Sampled 05/05/03 1] 20 Received 05/06/03 17 50 n - <br /> Benzene 4 1 050 ug/1 1 3050220 05/13/01 05/34/03 FPA 8260B ' <br /> Toluene 16 050 " <br /> Ethylbenzene 31 050 " <br /> Avlenes(total) 60 0 50 " <br /> Methyl tent-butyl ether ND 20 <br /> Surrogate 1,2-DCA-d4 111 % 60-140 " <br /> Sur i ogaie Toluene-d8 101 % 60-140 « <br /> Sur rogate 4-BFB 126% 60-140 , <br /> MN'-27(8305190-35)Water Sampled 05/06/03 11 SO Received 05/06/03 17 50 <br /> Benzene ND 050 - ug/I 1- 3050234 05/14/03 05/15/03 EPA 8260B <br /> Toluene ND 050 , <br /> Ethylbenzene ND 050 1 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 20 <br /> Surrogate 12-DCA-d4 106'% 60-140 <br /> Surrogate Toluene-d$ J07% 60-140 „ <br /> Sur i cgale 4-BFB s r n/ ,n ," <br /> - I VV-JYV rr „ <br /> —AS-26(S305190-36) Water Sam led OS/fly/03.10 in eceived 05106103-17 50 <br /> Benzene ND 050 ug/I 1 3050220 05/13/03 05/14/03 EPA 8260E <br /> Toluene --------- —ND ---0 50-= " - -- - . - <br /> Ethylbenzene ND 050 —�er <br /> Nylenes(total) - - - - --_- -- ND -- -050- <br /> Methyl <br /> 050 Methyl tert-butyl ether ND 2 0 „ <br /> Surrogate 1,2-DCA-d4 109% 60-140 <br /> Surrogate Toluene-d$ - -- - - - - 108%-- -60-140 <br /> Sur rogate 4-BFB 83'% 60-140 <br /> Sequoia Analytical - Sacramento The results ur this report apply,io the samples onalvzed in accordancess ith rhe chant of ' <br /> cusrodv document Unless others rse stated i esuhs are reported on a s,•er weighs basis <br /> This analinrcal report must be reproduced in ris entiien> <br /> Page 20 of 121 ' <br />