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1W Sequoia 1551 Industrial Road <br /> San Carlos CA 94070 <br /> Analytical (650)232-9600 <br /> FAX(650)232-9612 <br /> www sequoialabs com <br /> Gettler-Ryan/Geostrategres(1) Project Unocal(4) <br /> 7 Sierra Court, Suite <br /> J Project Number Former Unocal#5098, Stockton <br /> V7 <br /> CA, 9456$ Reported <br /> Project Manager Deanna Harding 07/01/02 07 46 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Senuoia Analytical - San Carlos <br /> Reporting <br /> knalyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> AdW-22D L206021-28 Water Sam led 06/09/02 13 50 Received 06/11/02 18 05 <br /> trene ND 20 ug/1 1 2060032 06/20/02 06/20/02 EPA 8260B <br /> ,1,2-Tetrachloroethane ND 20 1. „ „ 1. <br /> Cuene <br /> ,2-Tetrachloroethane ND 20 <br /> n „ <br /> chloroethene ND 20 „ <br /> ND 20 <br /> 1,2,3-Trrchlorobenzene ND 20 <br /> ,4-Trrchlorobenzene ND 2 0 „ <br /> n „ <br /> ,1-Trichloroethane ND 20 <br /> 1,1,2-Trichloroethane ND 20 „ <br /> 1chloroethene ND 20 <br /> chlorofluoromethane ND 50 „ <br /> 3-Trlrbloropropane ND 20 <br /> 1,2,4-Tnmethylbenzene ND 20 <br /> t5-Trrmethylbenzene ND 20 <br /> yl chloride ND 20 ” <br /> Total Xylenes ND " <br /> 20 " <br /> opto 1,2-Dichloroethane-0 104016 76-114 <br /> to Toluene-d8 103% 88-110 <br /> Surrogate 4-BFB 899% 86-115 , <br /> -235 L206021-29 Water Sam led 06/11/02 13 28 Received 06/11/02 18 05 / <br /> zene 12 50 ug/1 2 5 2060034 06/24/02 06/24/02 EPA 8260B <br /> 3romobenzene ND 5 0 <br /> ochloromethane ND 5 0 n " <br /> odichloromethane ND 50 <br /> „ <br /> „ <br /> 1 oform ND 5 0 <br />�romonrethane ND 12 <br /> n „ <br /> tylbenzene ND 5 0 « <br /> utylbenzene ND 50 <br /> n <br /> ert-butylbenzene ND 5 0 <br /> n n <br /> on tetrachloride ND 50 „ <br /> robenzene ND 5 0 <br /> oroethane ND <br /> 12 " <br /> hloroform ND 5 0 <br /> n <br /> romethane ND 12 <br /> llorotojuene ND 5 0 „ <br /> Chlorotoluene ND 5 0 <br /> n <br /> mochloromethane ND 5 0 „ <br /> ibromoethane ND 50 <br /> bromomethane ND 5 0 n , <br /> Ola Analytical-San Carlos 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 /> r <br /> Page 51 of 103 <br /> 1 <br />