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404 N Wlget Lane <br /> Walnut Geek,CA 94598 <br /> Sequoia (925)988-9600 <br /> FAX(925)988-9673 <br /> Analytical '"""" 'u°' ` " <br /> Gettla Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#8671 Reported <br /> Dublin CA,94568 Project Manager DeannaL Harding 21-Dec-00 09 23 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> Rep <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW4(W012066-05)Water Sampled 27-Nov-00 13 15 Received 29-Nov-0014 30 <br /> tert-Butyl alcohol ND 50 ug/1 1 OL07006 05-Dea00 05-Dea00 EPA 8260B <br /> Methyl tert-butyl ether 140 20 It " <br /> Di-isopropyl ether ND 20 " " It " " <br /> Ethyl tert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 " <br /> Surrogate Drbromofluoro methane 104% 50-1.50 <br /> Surrogate 1,2 Dichloroethane-d4 880% 50-150 " <br /> aia Analytical-Walnut Creek The results in dns report apply to the samples mrolyzed nt aeaor,danm with the churn of <br /> custody document. 77as amatpdcal report mast be reproduced in its entirely <br /> Page 5 of 8 <br />