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I( Sequoia 1553 Industrial Road <br /> San Carlos CA 94070 <br /> /' Analytical (650)232-9690 <br /> FAX(650)2324612 <br /> www sequaialabs cam <br /> 5 <br /> Gettler-Ryan/GeostrategteS(1) Project Unocal(4) <br /> 7 Sierra Court, Suite 7 Project Number Former Unocal#5098, Stockton <br /> lin CA, 94568 Reported <br /> Project Manager Deanna Harding 07/01/02 07 46 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> nalyte Result <br /> Lumit Units Dilution Batch Prepared Analyzed Method Notes <br /> 9ILW-24D L206021-32 Water Sampled 06/09/021445 Received 06/11/02 18 05 <br /> rene ND 20 ug/l 1 2060032 06/20/02 06/20/02 EPA 8260E <br /> 1,1,1,2-Tetrachloroethane ND 2 0 „ " 11 <br /> „ <br /> 0,2,2-Tetrachloroethane ND 20 <br /> trachloroethene ND 2 0 " <br /> luene <br /> ND 20 <br /> 1,2,3-Trichlorobenzene ND 20 <br /> 4-Trichlorobenzene ND 2 0 <br /> " <br /> t,1-Trichloroethane ND 20 <br /> 1,1,2-Trichloroethane ND 20 <br /> 1chloroethene ND 2 0 <br /> chlarofluaromethane ND 50 " <br /> , ,3-Trichloropropane ND 20 <br /> 114-Trimethylbenzene ND 20 „ <br /> 5-Trimethylbenzene ND 20 <br /> yl chloride ND 20 <br /> row Xylenes ND 20 " <br /> to 1,1-Dichloroethane-d4 104010 76-114 " <br /> to Toluene-d8 103% 88-110 <br /> surrogate 4-BFB 89 6% 86-115 <br /> -255 L206021-33 Water Sam led 06/11/020950 Received 06/11/02 18 05 <br /> zene ND 20 ug/l 1 2060034 06/21102 06/21/02 EPA 8260E <br /> 3romobenzene ND 20 „ „ " „ <br /> ochloromethane ND 2 0 <br /> todichloromethane ND 20 <br /> „ <br /> 4romoform ND 2 0 <br /> Fmutylbenzene <br /> omethane ND 50 <br /> „ <br /> ylbenzene ND 2 0 <br /> ND 2 0 " <br /> „ <br /> ert-butylbenzene ND 20 <br /> ton tetrachloride ND 2 0 <br /> robenzene ND 2 0 <br /> hloroethane ND 50 <br /> „ <br /> roforin ND 20 <br /> romethane ND 50 <br /> Ilorotoluene ND 2 0 " <br /> Chlorotoluene ND 2 0 <br /> tmochloramethane ND 2 0 <br /> ibromoethane ND 20 <br /> „ <br /> bromomethane ND 20 <br /> oia Analytical- San Carlos The results in this report apply to the samples anatmed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 57 of 103 <br />