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Sequoia 1551 TiosC aE4070 <br /> San C(650 23 -9600 <br /> ,�D_ • (650)232-9600 <br /> Analytical www FAX <br /> (650 232-dabs, 632 <br /> Gettler-Ryan/Geostiategies{]) Project Unocal(4) <br /> 6747 Sierra Court, Suite J Project Number Former Unocal#5098, Stockton Reported <br /> Dublin CA,94568 Project Manager Deanna Harding 0710 1102 07 46 <br /> Volatile Organic Compounds by EPA Method 8260B - <br /> Sequoia Analytical - San Carlos <br /> Reportmg <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-21S(L206021-25)Water Sampled 06/09/02 12 05 Received 06/11/02 18 05 <br /> 1,2-Dibromo-3-chloropropane ND 50 ugA 1 2060032 06/20/02 06/20/02 EPA 8260E <br /> 1,2-Dichlorobenzene T ND 2 0 " " ^ " " - <br /> 1,3-Dichlorobenzene ND 2 0 <br /> 1,4-Dichlorobenzene ND 2 0 <br /> Dichlorodifluoromethane ND 5 0 <br /> 1,1-Dichloroethane ND 2 0 <br /> 1,2-Dichloroethane ND 2 0 <br /> 1,1-Dichloroethene ND 20 <br /> cis-1,2-Dichloroethene ND 2 0 <br /> trans-l,2-Dichloroethene ND 2 0 - <br /> 1,2-Dichloropropane ND 2 0 <br /> 1,3-Dichloropropane ND 2 0 <br /> 2,2-Dichloropropane ND 2 0 <br /> 1,1-DEchloropropene ND 2 0 <br /> Ethylbenzene ND 2 0 <br /> Hexachlorobutadiene ND 2 0 <br /> Isopropylbenzene ND 2 0 <br /> p-Isopropyltoluene ND 2 0 ^ " <br /> Methylene chloride ND 5 0 <br />- N iphthdlenc 1V 1J 5 U <br /> n-Propylbenzene ND 2 0--" <br /> Styrene ND 2 0 <br />- 1 1,1,2-Tetrachloroethane ND -.. 2 0— <br /> I,1 2,2-Tetrachloroethane ND 2 0 <br />-Tetrachloroethene -_ - -- ------------ ND—=~-= =2 0-----^ -- - -- - - -- --" " - --- <br /> Toluene ND 2 0 <br /> 1,2,3-Tnehlorobenzene ND 2 0 <br /> 1,2,4_ Trich]orobenzene _ __ __ _ _ _ ND_ _ -20-- <br /> 1,1,1-Trichloroethane <br /> 20__1,1,1-Trichloroethane ND 2 0 " ^ <br /> 1,1,2-Trichloroethane ND 20 <br /> Trichloroethene ND 2 0 <br /> Trichlorofluoromethane ND 5 0 <br /> 1,2,3-Trichloropropane ND 2 0 " ^ <br /> 1,2,4-Trimethylbenzene ND 2 0 ^ ^ <br /> 1,3,5-Trimethylbenzene ND 2 0 ^ " <br />-Vinyl chloride ND 2 0 <br /> Total Xylenes ND 2 0 <br /> Surrogate 1,2-Di_chloroethane-d4 107% _ 76.114 „ <br /> Surrogate <br /> Surrogate-], <br /> - --- - - --- — ---- -— - 101 % - 88-110 <br /> Surrogate 4-BFB 909010 86-115 ++ <br /> Sequoia 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 /> Page 46 of 103 <br />