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404 N Wiget Lane <br /> Sequoia Walnut Geek CA 94598 <br /> (925)988-9600 <br /> FAX(925)988-9673 <br /> Analytical °'a' c°m <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal 4 0187 Reported <br /> Dubhn CA,94568 Project Manager Deanna L Harding 14-Mar-01 10 19 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-7(W102669-08)Water Sampled 26-Feb-011340 Received 28-Feb-01 16 54 <br /> tert-Butyl alcohol ND 50 ug!! 1 1 C05013 06-Mar-01 06-Mar-01 EPA 8260B <br /> Methyl tert-butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tertAmyl methyl ether ND 20 " <br /> Surrogate Dtbromofluoromethane 105% 50-150 " <br /> Surrogate 1,2-Dlchloroethane-d4 854% 50-150 <br /> U-8(W102669-09)Water Sampled 27-Feb-010855 Received 28-Feb-01 16 50 <br /> tert-Butyl alcohol ND 50 ug/1 1 IC07012 08-Mar-01 08-Mar-01 EPA 8260B <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- - - - -- - 106%- _ -50-150 - ". _ _ _ _ _ __ 21 <br /> Surrogate 1,2 Dichloroethane-d4 840% 50-150 " <br /> U-9(W102669-10)Water Sampled 27-Feb-0109 36 Received 28-Feb-01 16 50 <br /> tert-Butyl alcohol ND 50 ug/1 1 1007012 08-Mar-01 08-Mar-01 EPA 8260B <br /> Methyl tent butyl ether— - _ ND -- <br />