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819 Sinker Ave Ste 8 <br /> Sequoia Sacramento CA 95834 <br /> (D (916)921 9600 <br /> i1WAnalytical FAX(916)921 0100 <br /> wwu sequo,alabs corn <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stockton,CA S308091 <br /> 6747 Sierra Court,Ste J Project Number N/A Reported <br /> _ Dublin CA,94568 Project Manager Deanna L Harding 08/20/03 16 56 <br /> Gaso11ne1BTEX\Oxygenates by EPA method 82605 <br /> - Sequoia Analytical - Sacramento - - <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MVV-23D(5308091-30)Water Sampled 08/04/03 14 25 Received 08/05/03 17 35 - - - <br /> Benzene ND 050 ug/1 1 3080141 08/12/03 08/13/03 EPA 8260B <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 2 0 <br /> Surrogate 12-DCA-d4 111 % 60-140 <br /> Surrogate Toluene-d8 99% 60-140 <br /> Surrogate 4-BFB _ 108% 60-140 <br /> ]l7W-24S(S308091-31)Water Sampled 08/03/03 14 20 Received 08/05/03 17 35 � <br /> Benzene = - -5 0 050 -ug/1 - 1 -3080141 08/12/03 08/13/0311 EPA 8260B - <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) _ 053 - 050 <br /> Methyl tent-butyl ether ND 2 0 <br /> Surrogate 1,2-DCA-d4 102 % 60-140 ^ " <br /> Snut rogate Toluene-d8 102 % 60-140 <br /> 1ilYYlFURfP Q_ 18 Inn 0� 6.R.-14� •' n ,r + <br />__1WW-24D(S308091r32)Water Sampled 08/03/03 1135- 08/05/0317 35_ -- <br /> Benzene ND 050 ug/1 1 -3080117 08/11/03 08/12/03 EPA 82608 - -� <br />_--Toluene= -- --- - -- - ND-=--O 50 --- ---- "----- ---- -----" - - - - <br /> Ethylbenzene ND 050 <br />--Xylenes(total) --ND--- - 0 50 --- <br /> Methyl tent-butyl ether ND 2 0 <br /> Surrogate 1,2-DCA-d4 114% 60-140 " <br />—Suri ogate -Toluene-d8- ` " - -'°` " ` ' -97% s 60-140" <br /> Surrogate 4-BFB 110% 60-140 <br /> Sequoia Analytical - Sacramento The t esults in this report apply to the samples analyzed in actor dance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analvacal i epos t must be reproduced in its entirety <br /> Page 20 of 117 <br />