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Road <br /> Sequoia In CarloIndustrialA94070 <br /> San Carlos,CA 84070 <br /> %lw Analytical FAX(650)232-9610 <br /> (650)232.9612 <br /> www sequoialabs com <br /> Gettler-Ryan/Geostrategies(l) Project Unocal(4) L208033 <br /> 6747 Sierra Court Suite j Project Number Former Unocal#10187,Stockton Reported <br /> Dublin CA 94568 Project Manager Deanna Harding 08/29/02 07 10 <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260B <br /> ,Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> NP-1-111 (L208033-30)Water Sampled 08/14/02 16 30 Received 08/74/02 19 55 _ <br /> Tert-butyl alcohol ND 20 ug/1 1 2080017 -08116102 08/17/02 EPA 8260E s <br /> Methyl tent-butyl ether ND 10 " <br /> Di-isopropyl ether ND 10 <br /> Ethyl Cert-butyl ether ND 10 " ^ <br /> Tert-amyl methyl ether ND 10 " <br /> Surrogate 1 2-Dichloroethane-d4 113% 70-130 " <br /> NP-2-22 (L208033-31)Water Sampled 08/14/02 09 55 Received 08/14/02 19 55 <br /> Teri-butyl alcohol ND 20 ug/i 1 2080017 08/16/02 08/17/02 EPA 8260B <br /> Methyl ten-butyl ether ND 10 <br /> Di-isopropyl ether ' ND 10 <br /> Ethyl tert-butyl ether ND 10 <br /> Tert-amyl methyl ether ND 10 <br /> Surrogate 1,2-Dichloroethane-d4 113% 70-130 <br /> NP-2-60(L208033-32)_Water" Sampled 08/14/02 10 30 Received 08114102-19 55 <br /> Tert-butyl alcohol ND 20 ug/l 1 2080017 08/16/02 08/17/02 EPA 8260E <br /> Methyl ten-butyl ether ND 10 " <br /> Di-isopropyl ether 1 6 10 <br /> Ethyl tert-butyl ether ND 10 " <br />_Tert-amyl methyl ether ND 10 <br /> iSurrogate 1,2-Dichloroeihane-d4 106% 70-130 " <br />= NP-2=716(L208033=33)Water=Sampled_ 08/14/02 09 20�Received 08114102-19 55 <br /> _Ten-butyl alcohol ND 20 ugli 1 2080017 -08/16/02 .08/17/02 EPA 8260B <br /> Methyl tert-butyl ether ND-- -0 - <br /> Di-isopropyl ether ND 10 <br /> Ethyl tert-butyl ether ND 10 <br /> Tert-amyl methyl ether ND 10 <br /> Surrogate 1,2-Dichloroethane-d4 113% 70-130 " <br /> Sequoia Analytical - San Carlos The results to this report apply to the samples analyzed to accordance with the chain o <br /> custody document Unless otherivise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 1 1 of 36 <br />