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Indu <br /> ] RoadSequo•a San Carlos,CA 94070 <br /> (650)232-9600 <br /> mINW FAX(650)232-9612Analytical <br /> www sequoialabs corn <br /> Gettler-Ryan/G eostrategtes(1) Project Unocal(4) L208033 <br /> 6747 Sierra Court- Suite] Project Number Former Unocal#0187 Stockton Reported <br /> Dublin CA 94568 Project Manager Deanna Harding 08/29/02 07 10 <br /> Total Purgeable Hydrocarbons (C6-00) by EPA 8015B modified, BTEXM by EPA 8021B <br /> Sequoia Analytical - Morgan Hill <br /> Reporting <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> U-9 L208033-10 NVater Sampled 08/14/02 12 25 Received 08/14/02 19 55 <br /> Gasoline Range Organics(C6-C10) _ ND 50 ug/l 1 2H21002 08/21/02 08/21/02 8015Bm/8021B <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 ^ <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a a,o-Triuorotoluene 109% 70-130 " <br /> U-10(L208033-11)�'1'ater Sampled 08/14/02 11 10 Received 08/14/021955 <br /> Gasoline Range Organics(C6-C10) 180 50 ug/I 1 21-121002 08/21/02 08/22/02 8015Bm/8021B HC-21 <br /> Benzene 25 050 " <br /> Toluene 081 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) 069 050 <br /> Methyl tert-bury]ether ND 25 " <br /> Surrogate a,a,a-Triuorotoluene 176% 70-130 <br /> U-11 (L208033-12)Water Sampled 08/14/02 14 10 Received 08/14/02 19 55 <br /> Gasoline Range Organics(C6-C10) ND 50 ug/1 1 2H21002 08/21/02 08/22/02 8015Bm/8021B <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Etliylbenzene ND—0 <br /> Xylenes(total) ND 050 " <br /> -Surrogate a,a,a-Trtfluorotoluenez———_ __--_ _ ____963% » 70-130_:Sequoia Analytical - San Carlos The results in this report apply to the samples analyzed in accordance with the chain <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 15 of 36 <br />