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Ki) Sequoia Indusinal Road <br /> San,Carlos Cq 9 <br /> 46721 <br /> Analytical (650)232-9662 <br /> FAX(650)232 9612 <br /> www sequo,alabs conn <br /> Gettler-Ryan/Geostrategies(l) Project Unocal(4) <br /> 6747 Sierra Court, Suite J Project Number Former Unocal#5098 & Montgmery 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 Analyzed Method Notes <br /> MW-21D L203015-26 Water Sampled 03/03/02 14 55 Received 03/05/02 18 25 <br /> Styrene ND 20 ugll 1 2030017 03/08/02 03/08/02 EPA 8260B <br /> 1,1,1,2-Tetrachloroethane ND 20 <br /> 1,1,2,2-Tetrachloroethane ND 2 0 <br /> Tetrachloroethene ND 2 0 <br /> Toluene ND 2 0 <br /> 1,2,3-Tnehlorobenzene ND 2 0 <br /> 1,2,4-Tnchlorobenzene ND 2 0 <br /> 1,1,1-Trichloroethane ND 2 0 „ <br /> 1,1,2-Tnchloroethane ND 2 0 <br /> Trichloroethene ND 20 <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 w - ND K -2 0 <br /> Surrogate 1 2-Dichloroethane-d4 99 6% 63-118 " <br /> Surrogate Toluene-d8 957% 88-110 <br /> Surrogate 4-BFB 101 % 86-115 " <br /> A7NN'-225 L203015-27 Water Sampled 03/03/02 13 20 Received 03/05/02 18 25 <br /> .Benzene.--- ND 2 0=ug/1 I 203001703/08/02-03/12/02—EPA 8260E T <br /> Bromobenzene ND 2 0 <br /> —=BromochloromethaneND----2 0 --+-- --„--- -- --- ---- - —=� <br /> _ <br /> Bromodichl orom ethane ND 2 0 <br /> Bromoform- --ND--_ —2 0=— „ - - --„ --- - -- - - — - --- - -- - —_ <br /> Bromomethane ND 5 0 „ <br /> n-Butylbenzene ND 2 0 <br /> ----_sec-Butylbcnzene. rix_, _ _. -ND - 2 0-_ _ <br /> Tert-butylbenzene ND 20 <br /> Carbon tetrachloride ND 2 0 „ <br /> 1 Chlorobenzene ND 2 0 - <br /> Chloroethane ND 5 0 <br /> Chloroform ND 2 0 <br /> Chloromethane ND 50 „ <br /> 2-Chlorotoluene ND 2 0 <br /> 4-Chlorotoluene ND 2 0 ” <br /> Dibromochloromethane ND 20 <br /> 1,2-Dibromoethane ND 20 _ _ <br /> Dfl romomethane _ND _ _ 2 0 - _ - - _-- _ „ _ -- „ _-- <br /> Sequoia Analytical- San Carlos The results to this t epos 1 apply to the samples analyzed in accordance with the chain of <br /> custody document Tilts analytical repot r must be reproduced in its entirety ' <br /> Page 53 of 91 ' <br />