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4D (65Sequoia an Industrial Road <br /> San Carlos CA ggO7D <br /> Analytical <br /> 0)232.9600 <br /> FAX(650)232_9612 <br /> www sequoialabs com <br /> Gettler-Ryan/Geostrategtes(1) Project Unocal(4) ' <br /> 6747 Sierra Court,Suite J Project Number 1;OrMer Unocal#15098 &Montgmery Ward Reported <br /> Dublin CA, 94568 Project Manager Deanna Harding 03/26/02 12 44 <br /> Volatile Organic Compounds by EPA Method 8260E ' <br /> - Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-IUL203015-211 Water Sampled 03/04/02 10 15 Received 03/45/02 18 25 ' <br /> 1,2-Dibromo-3-chloropropane ND 50 ugll 1 2030017 03/08/02 03/08/02 EPA 8260B <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-Dtchloroethane ND 20 „ <br /> 1,2-Dtchloroethane 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-Dichloropropane 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 /> Hexachlorobutadiene ND 20 <br /> Isopropylbenzene ND 20 <br /> p-laopropyltoluene ND 20 <br /> Methylene chloride ND 50 „ <br /> Naphthalene ND 5 0 „ <br /> n-Propylbenzene ND 20 <br /> Styrene ND.� 2 D - <br /> 1,1,1,2-Tetrachloroethane ND 20 <br /> -- 1,I,2,2,Tetrachloroethane—-- -- - ---—ND__ 2 0_ <br /> _ Tetrachloroethene ND 20 <br /> Toluene - - - - - - --ND---- - =-2 0-- <br /> 1,2,3-Tnchlorobenzene ND 20 <br /> 1 2,4-Tnchloroben7ene ND 20 <br /> - 1,1,1:Trichloroethane _ x ND_ - 20- <br /> 1,1,2-Tnchloro ethane <br /> 20-1,1,2-Trichloroethane ND 20 <br /> Trichloroethene ND 20 <br /> Trichlorofluoromethane, ND 50 <br /> 1,2,3-Tnchloropropane ND 20 <br /> 1,2,4-Tnmethylbenzenc ND 20 <br /> 1,3,5-Trimethylbenzene ND 20 <br /> Vinyl chloride ND 20 <br /> Total Xylenes ND 20 " <br /> Surrogate 1 2-Dtchloroethane-d4 104% 63-118 <br /> Surrogate Toluene-_d8 ' 979% _ 88-110_ <br /> Surt ogate 4-BFB 107 Ve 86-115 <br /> I- <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 i epi oduced in its entirety <br /> Page 45 of 91 <br />