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1551 Industrial Road <br /> Sequoia San Carl0s CA 94070 <br /> Analytical <br /> q�► <br /> 4a) (650)232-9600 <br /> FAX(650)232-9612 <br /> �"m S4u01alabs com <br /> Gettler-Ryan/GeostrategteS(1) Project Unocal(4) <br /> 6747 Sierra Court, Suite J Project Number Former Unocal#2859,Stockton Reported <br /> Dublin CA,94568 Project Manager Deanna Harding 05/30/02 14 17 <br /> Volatile Organic 8 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 /> MW-14 L205055-14 Water Sampled 05/14/02 11 45 Received 05/14/02 17 50 <br /> 1,2-Dibromoethane ND , 1 0 ugA 1 2050035 05/17/02 05/17/02 EPA 8260B <br /> 1,2-Dichloroethane ND 10 <br /> Di-isopropyl ether ND 10 <br /> Ethyl tert-butyl ether ND 10 <br /> Methyl tert-butyl ether ND 10 <br /> Teri-amyl methyl ether ND 10 <br /> Tert-butyl alcohol ND 20 ^ " <br /> Surrogate 1,2-Dichloroethane-d4 101 % 70-130 " <br /> Surrogate Toluene-d8 102% 70-130 " <br /> MW-15(L205055-15)Water_ Sampled 05/14/02 12 15 Received 05/14/02 17 50 <br /> 1,2-Dibromoethane ND 10 ugA . 1 2050035 05/17/02 05117102 EPA 8260E <br /> 1,2-Dichloroethane ND 10 <br /> Di-isopropyl ether ND 10 <br /> Ethyl tert-butyl ether ND 10 " <br /> Methyl tert-butyl ether" ND 10 <br /> Tert-amyl methyl ether ND 10 <br /> Tert-butyl alcohol ND 20 <br /> Surrogate 1,2-Dichloroethane-d4 104% 70-130 <br /> Surrogate Toluene-dS - - 100% 70-130 " <br />=MW-16(L205055=16)-Water=Sampled 05114102-12 45=Received 05/14/02-17-50 -- <br /> 1,2-Dibromoethane ND 10 ug/l 1 2050035 05/17/02 05/17/02 EPA 8260B <br /> X1,2-Dichlo�oe --thane -- YND1 0 —„ — " --- <br /> Dt-isopropyl ether _ ND 10 <br /> Ethyl'tert-butyl ether ND 1 0 " <br /> Methyl tert-butyl ether ND 10 <br /> Tert-amyl methyl ether ND 10 <br /> Tert-butyl alcohol F ND 20 <br /> Surrogate 1,2-Dichloroethane-d4 4 104% 70-130 <br /> Surrogate Toluene-d8 103% 70-130 " <br /> Sequoia Analytical - San Carlos The results in this report apply to the samples analyzed to accordance with the chain <br /> custody document This analytical report must be reproduced in its entirety <br /> J <br /> Page 11 of 20 <br />