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155E lndustnal Road ' <br /> Sequoia San Carlos CA 94676 <br /> (650)232.9600 <br /> Analytical <br /> FAX(630)232-9fi 12 <br /> www sequoulabs com <br /> Gettler-Ryan/Geostrategies(I) Project Unoca](4) <br /> 6747 Sierra Court, Suite J Project Number Fortner Unocal#5098,Stockton Reported <br /> Dublin CA, 94568 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 /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes , <br /> MW4(L206021-05)Water Sailed---06/10/02 17 25 Received 06/11/02 18 05 <br /> 1,2-Dibromo-3-chloropr6pane ND 31 - ug/I 625 2060034 06/24/02 06/24/02 EPA 8260E <br /> 1,2-Dichlorobenzene ND 12 <br /> 1,3-Dichlorobenzene ND 12 ^ <br /> 1,4-Dichlorobenzene ND 12 " ^ <br /> Dichlorodifluoromethane ND 31 ^ ' <br /> 1,1-Dichloroethane ND 12 " <br /> 1,2-Dichloroethane ND 12 <br /> 1,1-Dichloroethene ND 12 <br /> cis-1,2-Dichloroethene ND 12 <br /> trans-l,2-Dichloroethene ND 12 <br /> I2-Dichloropropane ND 12 <br /> 1,3-Dichloropropane - ND 12 <br /> 2 2-Dichloropropane ND 12 " ^ <br /> 1,1-Dichloropropene ND 12 <br /> )Ethylbenzene - _ 130 12 <br /> Hexachlorobutadiene ND 12 <br /> lsopropylbenzene ND 12 <br /> p-Isopropyltoluene ND 12 <br /> Methvlene chloride ND 31 " <br /> Naphthalene 48 31 <br /> =W-Propylbenzene ND�12 "—.—"— <br /> Styrene <br /> "— <br /> Styrene ND 12 <br /> `1;1;1;2-Tetrachloroethane - -_- -ND- <br /> 11:2:2-Tetrachloroethane <br /> D - <br /> - 1 1,2,2-Tetrachloroethane ND 12 <br /> f Tetrachloroethene' - T -- --- ND _ 12 <br /> Toluene 46 12 <br /> 1,2,3-Trichlorobenzene ND 12 <br /> -1;2,'4'Trichlorobenzene ti._.. w a _ ND_ _ 12-- <br /> 1,1,1-Trichloroethane <br /> 2.-•-1,1,1-Trichloroethane ND 12 " <br /> 1,1,2-Trichloroethane ND 12 " <br /> Tnchloroethene ND 12 <br /> Tnchlorofluorom6ttiane - ND 31 <br /> 1,2,3-Tnchloropropane ND 12 " <br /> 1,Z,4-Tritnethyl benzene 110 12 ^ " <br /> 1,3,5-Trim ethyl benzene 27 12 " <br /> Vinyl chloride ND 12 <br /> -Total Xylenes- 420 12 - <br /> Surrogate <br /> 2 Surrogate -1 2-Dichloroethane-d4 ---__ ___ __ _ _ _ 106%- - 76-114- <br /> Surrogate Toluene-d8 995% 88-110 <br /> Surrogate 4-BFB 967% 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 16 of 103 ' <br />