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Sequoia Sar <br /> i I..,C al 407 <br /> ,!Z� San Carlos CA gg07fl <br /> (650)232 9600 <br /> Analytical FAX(650)232 9612 <br /> www sequoialabs com <br /> Gettler-Ryan/GeostrateRies(I) Project Unoca](4) <br /> 6747 Sierra Court,Suite J Project Number Former Unocal#5098&Montgmery Ward Reported <br /> Dublin CA,94568 Project Manager Deanna]-larding 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 Analyzed Method Notes <br /> MW-25S(L203015-33)Water Sampled 03/04/02 I1 40 Received 03/05/02 18 25 <br /> 1,2-Dibromo-3-chloropropane ND 10 ug/l 2 2030023 03/14/02 03/14/02 EPA 8260E <br /> 1,2-Dichlorobenzene ND s 4 0 <br /> 1,3-Dichlorobenzene ND 4 0 <br /> 1,4-Dichlorobenzene ND 4 0 <br /> Dichlorodifluoromethane ND 10 <br /> 1,I-Dichloroethanc ND 4 0 <br /> 1,2-Dichi oro ethane 4 5 4 0 <br /> 1,1-Dichloroethene ND 4 0 <br /> cis-1,2-Dichloroethene ND 4 0 " <br /> trans-1,2-Dichloroethene ND 4 0 <br /> ],2-Dichloropropane ND 4 Q <br /> 1,3-Dichloropropane ND 4 Q <br /> 2,2-Dichloropropane _ ND 4 0 <br /> 1,1-Dtchloropropene ND 4 0 <br /> Ethylbenzene ND 4 0 <br /> Hexachlorobutadiene ND 4 Q <br /> Isopropylbenzene ND 4 0 <br /> p-Isopropyltoluene ND 4 0 " <br /> Methylene chloride ND 10 " <br /> Naphthalene ND 10 <br /> n-Propylbenzene ND 4 Q <br /> I�Styrene— ND 4 0�„ <br /> 1,1,1,2-Tetrachloroethane ND 4 0 <br /> Tetrachloroethene ND 4 0 " <br /> Toluene —ND-- 4 0= -+— �- --- ---- -- ---- -- -- - - -- - ---- <br /> 1,2,3-Tnchlorobenzene ND 4 0 <br /> 1,2,4-Trichlorobenzene ND 4 0 „ <br /> �--1,1,1-Trichloroethane— _ _ ____ _ _- -- ND--- -40 <br /> 1,1,2-Trichloroethane ND 4 p <br /> Trichloroethene ND 4 0 <br /> Tnchlorofluoromethane ND 10 <br /> 1,2,3-Trichloropropane ND 40 <br /> 1,2,4-Trim ethyl berizene ND 4 0 <br /> 1,3,5-Trimethylbenzene ND 4 0 <br /> Vinyl chloride ND 4 0 " <br /> Total Xylenes ND 4 0 <br /> --Surrogate 1 2-Dichloroethane-d4 868916 63-118 <br /> Surrogate Toluene-d8._ _ _ _ __ 103 % 88-110 <br /> Surrogate 4-BFB 108% 86-115 -„ <br /> Sequoia AnalyticaI - San Carlos The results in this repot apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be i eproduced in its entirety <br /> Page 63 of 91 1 <br />