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Sequoia 1551 I11-Cal Road <br /> San Carlos CA 94070 <br /> Analytical FAX(650)232-9600 <br /> (650)232-9612 <br /> www sequo,alabs corn' <br /> Gettler-Ryan/Geostrategies(I) Project Unoca](4) <br /> 6747 Sierra Court, Suite] Project Number Former Unocal#5098 &Montgrnery 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 Analyzcd Method Notes <br /> MW-15 L203015-18 Water Sampled 03/04/020950 Received 03/05/02 l8 25 ' <br /> Styrene ND 2 0 ug/1 1 2030017 03/08/02 03/08/02 BPA 8260B <br /> 1,1,1,2-Tetrachloroethane `ND - 2 0 - " +. „ - „ „ - <br /> 1,1,2,2-Tetrachloroethane ND 2 Q <br /> Tetrachloroethene ND 2 0 <br /> Toluene ND 2 0 <br /> 1,2,3-Trichlorobenzene ND 2 0 „ <br /> I 2,4-Trichlorobenzene ND 2 0 <br /> 1,1,1-Trichloroethane ND 2 0 <br /> 1,1,2-Trichloroethane ND 2 0 <br /> Trichloroethene ND 2 0 " <br /> Trichlorofluoromethane ND 5 0 <br /> 1,2,3-Trichloropropane ND 2 0 <br /> 1,2,4-Tnmethylbenzene ND 2 0 <br /> 1,3,5-Tnmethylbenzene ND 2 0 <br /> Vinyl chloride ND 2 0 <br /> Total Xylenes ND 2 0 - <br /> „ <br /> Surrogate 1 2-Dichloi oethane-d4 973% 63-118 <br /> Surrogate Toluene-d8 974% 88-110 " <br /> Surrogate 4-BFB 102% 86-115 " <br /> MVV-16(1,203015-19)Water Sampled 03/04/02 15 30 Received 03/05/02 18 25 <br /> —Benzene ND 2 0�139/1�—1 203001703/08/02-03/08/02—EPA 826013 <br /> �Bromobenzene ND 2 0 „ „ „ „ „ p <br /> _—Bromochlorornethane— -- ----------ND - --2 0= "----"-- --- - -- — —--„ ----- - ---— <br /> _ Bromodichloromethane ND 2 0 <br /> --- - - =- = <br /> - Bromoforin-- ---� —ND--- - --2 0 --- „ -------, ; ---„----—„- — , <br /> Bromomethane ND 5 0 ” <br /> n-Butylbenzene ND 2 0 <br /> sec-Butyl benzene-- _ __ _ �. _ _ 36— _ 2 0._..._ <br /> Tert-butylbenzene ND 2 0 <br /> Carbon tetrachloride ND 2 0 ' <br /> Chlorobenzene - - r - =ND 2 p „ <br /> Chloroethane ND 5 0 <br /> „ <br /> Chloroform ND 2 0 <br /> Chloromethane ND 5 0 „ <br /> 2-Chlorotoluene ND 20 <br /> 4-Chlorotoluene ND 2 0 <br /> Dibromochloromethane _ND 2 0 <br /> _ 1,2-Dibromoethane - ND 20 „ <br /> Dibromomethane - - - - ND 2 0— <br /> Sequoia <br /> Sequoia Analytical - San Carlos The results in this i epos t apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety 0. <br /> Page 41 of 91 ' <br />