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819 Sinker Ave Ste 8 <br /> Sacramento CA 95834 <br /> Sequoia (916)921-9600 <br /> i!DFAX(916)921-0100 <br /> 'ow Analytical WWW sequoialabsCam <br /> Ryan-Dublin Project Former Unocal 2859,Stockton,CA S303055 <br /> 6747 Sierra Court,Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 03/19/03 18 34 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-14 5303055-14 Water Sampled 02/27/03 15 00 Received 03/03/03 12 15 <br /> Teri-butyl alcohol ND 100 ugA 1 3030181 03/12/03 03/12/03 EPA 8260B <br /> Methyl tort-butyl ether ND 20 <br /> Di-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether ND 20 " <br /> Tert-amyl methyl ether ND 20 <br /> 1,2-Dichloroethane ND 20 " <br /> 1,2-Dibromoethane(EDB) ND 20 " <br /> Surrogate 1,2-DCA-d4 107% 60-140 " <br /> MW-115 5303055-15 Water Sampled 02/271031640 Received 03/03/03 12 15 <br /> Tert-butyl alcohol ND 100 ugll 1 3030181 03/12/03 03/12/03 EPA 8260B <br /> Methyl tert-butyl ether ND 20 " <br /> " <br /> Di-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether ND 2 0 <br /> Tert-amyl methyl ether ND 20 " <br /> 1chloroethane ND 20 <br /> I, ibromoethane(EDB) ND 20 <br /> Surrogate 1,2-DCA-d4 115 % 60-140 " <br /> MW-16 S303055-16 Water Sampled 02/27/0315 50 Received 03/03/03 12 15 <br /> Tert-butyl alcohol ND 100 ugA 1 3030181 03/12/03 03/12/03 EPA 8260B <br /> Methyl teri-butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether ND 20 " <br /> Tert-amyl methyl ether ND 20 " <br /> 1,2-Dichloroethane ND 20 <br /> 1,2-Dibromoethane(EDB) ND 20 " <br /> Surrogate 1,2-DCA-d4 106 % 60-140 " <br /> ola Analytical - Sacramento The results in this repo i apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise slated results are i eported on a wet weight basis <br /> This analytical report must be i eproduced in its entirei), <br /> Page 12 of 24 <br />