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404 N WfgetLane <br /> W�'n`�Creek.` 90 94590 <br /> (925925)988-9G�00 <br /> FAX(925) 8-%73 <br /> qwr• 98 <br /> Analytical www sequolalarswm <br /> er Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#0187 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 22-Jun-00 07 41 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-13(69')(W006202-08)Water Sampled 07Jun-00 00 00 Received 08-Jun-00 16 55 <br /> Cert-Butyl alcohol ND 100 ug/1 1 0F11006 11-Jun-00 I IJun-00 EPA 8260A <br /> Methyl tert-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 /> Surrogate Dibromofluoromethane 980% 50-150 " <br /> Surrogate 12-D►chloroethane-d4 840% 50-150 " <br /> oia Analytical -Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 7 of 12 <br /> t� <br />