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819 Sinker Ave Ste 8 <br /> i! <br /> j" Sequoia Sacrars(91 CA 995834 <br /> 600 <br /> vACO Analytical ww seq G) labs c mo <br /> . www.sequoialabs eoin <br /> Gettler-Ryan-Dublin Project Former Unocal 2859,Stockton,CA 5305466 <br /> 6747 Sierra Court,Ste J Project Number NIA Reported.' <br /> Dublin CA,94568 Prof Mgt Deanna L Harding 06/03/03 18 41 <br /> Gasoline (2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Lutnt Units Dilution Batch Prepared Analyzed Method N,] <br /> Ls <br /> (53054.66-04)Water Sampled:05/19/03 ll 15 Received 0511910317:10 <br /> Purgeable Hydrocarbons ND 50 iiel 1- 3050448 05/23/03 05/23/03 EPA 8015/8021 - <br /> Benzene ND 050 " <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 20 " <br /> r <br /> Surrogate a,a,a-Trifluorotoluene 94% 60-140 " <br /> MW4(5305466-05)Water Sampled 05/19/03 10 45 Received 05/19/0317 10 <br /> Purgeable Hydrocarbons ND 50 ugA 1 3050448 05/23/03 05/23/03 EPA 8015/8021 <br /> Benzene ND 050 <br /> Toluene _ ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl"-butyl ether - _ -ND -20- --Surrogate a,a,a-Trifluorotoluene 93910 60-140 " <br /> MW-5 S305466-06 Water Sampled 051191031210 Received 0511910317.10 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3050448 05/23/03 05/23/03 EPA 8015/8021 <br /> Benzene ND 050 <br />-=Toluene - —ND- --0 50r _- <br /> Ethylbenzene ND 050 <br />----Xylenes(total)- _ -_T NDS _ 0 50_�.-" - <br /> Methyl tert-butyl ether ND 2 0 <br /> 99%�. <br /> Surrogate a,a,a-Trtfluorotoluene -� -60740 "'" <br /> Sequoia Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the chain JW <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 4 of 20 <br />