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1r <br /> , <br /> 1551 Industrial Road <br /> Sequoia San malas,CA9)Z70-4111 <br /> ID— (650)232-9600 <br /> FAX(650)232-961,2 <br /> Analytical www sequolalaabs co'r" <br /> r u t <br /> w ti e <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(l) Sampled 8/31100 to 9/1/00 <br /> 6747 Sierra Court,Suite J Project Number Former Unocal SS#(0187) Received 9/1/00 <br /> Dublin,CA 94568 Project Manger Deanna Harding Reported 9/18/00 <br /> li <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260B <br /> Sequoia Analytical-San Carlos <br /> Batch Date Date Surrogate Reporting <br /> lAnalyte Number Prepared Anal Limits Limit Result Units Notes"` <br /> U-10(continued) L009012-11 Water <br /> Tert-butyl alcohol 0090034 9/7/00 9/7/00 100 ND ug/l <br /> Methyl tert-butyl ether 2 00 ND " <br /> Di-isopropyl ether " 200 ND " <br /> Ethyl tert-butyl ether „ , 200 ND " <br /> Tert-amyl methyl ether ' 200 ND It <br /> Surrogate 1,2-Dichloroethane-& 760-114 966 % <br /> U-11 L0090M12 - Water <br /> Ethanol 0090034 9/7/00 9/8/00 1000 ND 119/1 <br /> Tert-butyl alcohol It _" L y -100 ND " <br /> Methyl tert-butyl ether 200 ND " <br /> Di-isopropyl ether 2 00 ND " <br /> Ethyl tert-butyl ether--- -- It _„ 2 00 ND " <br /> Tert-amyl methyl ether 200 ND - <br /> Surrogate 1,2-Dichloroethane-d4 _ " T 760-114 954 % <br /> I-12 I L009012-13 Water <br /> Ethanol 0090034 917100 918/00 1000 ND ug/1 <br /> Tert-butyl alcohol =- ___ T - "_ ,_ _ _ <br /> Methyl tert-butyl ether 2 00 538 " <br />_ -Dl-lsopropy[ether- — -- --- n---- -- - - - - - - - - 2 00. _ -6.87 --"� - <br /> Ethyl tat butyl ether - 2 00 ND " <br /> Tert-amyl methyl ether-- - - - - =;; -_=-" - " - - -- - ,- 200 -,- ND= - - <br /> Surrogate 1,2-Dichloroethane-d4 " 760-114 964 % <br /> U-13 L009012-14 Water _ <br /> Ethanol 0090034 9/7/00 9/8/00 1000 ND ug/l <br /> Tert butyl alcohol It Is H 100 ND " <br /> Methyl tert-butyl ether It <br /> 2 00 ND " <br /> Di-isopropyl ether It <br /> 200 ND, <br /> Ethyl tert-butyl ether it 200 ND " <br /> Tert-amyl methyl ether It 200 ND " <br /> Surrogate 1,2-Dichloroethane-d4 IF N 760-114 964 % <br /> NP-1-22 L009012-15 Water <br /> Ethanol 0090051 9/13/00 9113/00 20000 ND ug/1 <br /> Tert-butyl alcohol 2000 ND IT <br /> Methyl tert butyl ether " 400 ND It <br /> Di-isopropyl ether 400 ND It <br /> Ethyl tert-butyl ether " " 400 ND " <br /> Tert-amyl methyl ether 400 ND ^ <br /> Sequoia Analytical-San Carlos "`Refer to end of report for text of notes and definitions <br /> Page 9 of 19 <br />