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r <br /> Sequoia an, industrial Road <br /> San Carlos Cq 94070 <br /> Analytical (650) <br /> n alyti ca l (650)232-9600 <br /> FAX(650)232-9612 <br /> www sequoialabs corn <br /> Gettler-Ryan/Geostrategies(l) Project Unocal(4) <br /> 6747 Sierra Court,Suite 3 Protect Number Fortner Unocal 45098& Mantgmery Ward Reported <br /> Dublin CA,94568 Project Manager Deanna Harding 03/26/02 12 44 ' <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared F Analyzed Method Notes <br /> MW-11 {L203015-13)Water Sampled 03/04/02 14 10 Received 03/05/02 18 2.5 <br /> 1,2-Dibromo-3-chloropropane ND 50 ug/l -10 2030017 03/08/02 03/13/02 EPA 82608- <br /> 1,2-Dichlorobenzene `- ND -20 <br /> 1,3-Dichlorobenzene ND 20 <br /> 1,4-Dichlorobenzene ND 20 <br /> Dichlorodifluoromethane ND 50 <br /> 1,1-Dichloroethane ND 24 <br /> 1,2-Dichloroethane ND 20 „ <br /> 1,1-Dichloroethene ND 20 <br /> cis-1,2-Dichloroethene ND 20 " <br /> trans-1,2-Dichloroethene ND 20 <br /> 1,2-Dicbloropropane ND 20 <br /> 1,3-Dichloropropane ND 20 <br /> _ 2,2-Dichloropropane - - ND -20 <br /> 1,1-Dichloropropene ND 20 <br /> Ethylbenzene ND 20 <br /> 1-Iexachlorobutadiene ND 20 r+ <br /> Isopropyl benzene ND 20 <br /> p-Isopropyltoluene ND 20 „ <br /> Methylene chloride ND 50 „ <br /> Naphthalene ND 50 <br /> n-Propyibenzene ND 20 " <br /> Styrene - ND 20 " - <br /> „ <br /> 1,1,1,2-Tetrachloroethane ND 20 " <br /> - - etrachltiroetliane <br /> Tetrachloroethene ND 20 „ <br /> - -Toluene---- - - _ -- - - - -- ]70 20 __- <br /> 1,2,3-Trichlorobenzene ND 20 <br /> 1,2,4-Trichlorobenzene ND 20 <br /> ` 1;1,1=Tnchloroethane"`""-'-- y� may_ -'ND- <br /> 1,1,2-Trichloroethane <br /> ND_1,1,2-Trichloroethane ND 20 " <br /> Tnchioroethene ND 24 <br /> Trichlorofluofomethane ND y 50 <br /> 1,2,3-Trichloropropane ND 20 <br /> 1,2,4-Trimethylbenzene 24 20 „ <br /> 1,3,5 Tnmethylbenzene NO 20 <br /> Vinyl chloride ND 20 <br /> Total Xylenes 170 20 <br /> Surrogate 1,2-Dichloroethane-d4 - 951 % 63-118 rr <br /> Surrogate -Toluene-d8 - -- -- - - -- - - 942% 88-110 - - -- - - -' - -- - - - <br /> Surrogate 4-BFB 101 % 86-115 " <br /> Sequoia Analytical - San Carlos The esults in this repot t 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 33 of 91 ' <br />