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Sequoia 819Sinker <br /> CA SIC 14 <br /> Sacramento CA 95g3q <br /> Analytical 1916)921 960, <br /> FAA 1916)921-0I0 <br /> O <br /> www cequoralabs c <br /> Gettler-Ryan -Dublin Prolect Former Unocal 5098,Stockton,CA S305190 <br /> 6747 Sierra Court, Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 05/21103 ]7 32 <br /> Gasobne1BTEX\Oaygenates by EPA method 8260B <br /> Sequoia Analytical - Sacramento <br /> `Reporting <br /> Analyte Result Linin Units Dilution Batch Prepared Analyzed Method Note,; <br /> MW-22D 5305190-28 Water Sampled 05/04/03 13 20 Received 05/06/0317 50 - - _ - <br /> Benzene ND 050 ug/l 1 3050179 05/12/03 05/12/03 EPA 8260E <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 „ <br /> Methyl tert-butyl ether ND 2 0 <br /> Surrogate 1 2-DCA-d4 113 % 60-140 <br /> Surrogate Toluene-d8 108 3, 60-140 " <br /> Sus rogale 4-BFB 71 % 60-140 „ <br /> MW-235 5305190-29 Water Sampled 05/05/03 12 40 Received 05/06/03 17 50 <br /> Benzene ND - 050 ug/l 1 3050220 05/13/03 05/14/03 EPA 82608 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 „ <br /> Nylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether ND 2 0 <br /> Surrogate 1 2-DCA-d4 114 % 60-140 " <br /> Sur rogare Toluene-d8 108% 60-140 " <br /> Surrogate 4-BFB «/ rn ren i <br /> —MW-23D 5305190-30)Water Sampled 05/05103 13 00_ Recened 0510610317 50 <br /> Benzene ND 0 50 ug/l 1 3050220 05/13/03 05/14/03 EPA 8260B <br /> _—._Toluene _ND--_ --- 0 50-_ <br /> 0 -- <br /> _ Ethylbenzene - - - - ND 050 - <br /> Xylenes(total) - - - - ND - 050 --- <br /> Methyl ten-butyl ether ND 2 0 <br /> Surrogate 12-DCA-d4 114 % 60-140 „ <br /> —Sur iogale Toluene-d8- <br /> ]08% '60-140 <br /> Suri ogale 4-BFB 78% 60-140 <br /> WSequoia Analytical - Sacramento The results rn this i eport apply to thesantples anahced in accordance 14 ah the chain of W <br /> custody document Unless orherurse stated results are reported on a wet weight basis <br /> This analylical report must be reproduced rn its entirety <br /> Page 18 of 121 ' <br />