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Sequoia 1551 1ndustr�al Roa <br /> San"".Cq 940a <br /> Analyticali�i) (650)232-96 <br /> FAX(650)232-9612 <br /> www sequwalabs co <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(4) <br /> 6747 Sierra Court,Suite 7 Project Number Former Unocal#5098& Montgmery Ward Reported <br /> Dublin CA,94568 P <br /> 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 /> MVI'-230 L203015-30 Water Sampled 03/04/02 12 55 Received 03/05/02 18 25 R-05' <br /> Styrene ND 1000 U0 500 2030023 03/14/02 03/14/02 EPA 8260B <br /> 1,],1,2-Tetrachloroethane ND 1000 <br /> 1,1,2,2-Tetrachloroethane ND 1000 <br /> Tetrachloroethene ND 1000 „ <br /> Toluene ND 1000 <br /> 1,2,3-Trlchlorobenzene ND 1000 <br /> 1,2,4-Trichlorobenzene ND 1000 " <br /> 1,1,1-Trichloroethane ND 1000 <br /> 1,1,2-Tnchloroethane ND 1000 <br /> Trichloroethene ND 1000 <br /> Trichlorofluoromethane ND 2500 <br /> „ <br /> 1,2,3-Trichloropropane ND 1000 <br /> 1,2,4-Tnmethylbenzene ND 1000 <br /> 1,3,5-Trimethylbenzene ND 1000 <br /> Vinyl chloride ND 1000 <br /> „ <br /> Total Xylenes -ND 1000 „ <br /> Surrogate 1,2-Dichloroethane-d4 971 a 63-118 <br /> Surrogate Toluene-d8 103% 88-110 <br /> Surrogate 4-BFB 106% 86-115 <br /> A7W-24S !,203015-3] Water Sampled 03/03/02 15 43 Received 03/05/02 18 25 <br /> Benzene 8 1 2 0—ug/1 ] 2030017�03/08/02�03/12/02TEPA 82601 T <br /> Bromobenzene ND 2 0 <br /> - - Bromo_c_hloromethane _ - --ND�_--2 0-- -"-- "--- ' ----- ,- -- -- --„- -- ---' <br /> Bromodichloromethane ND 2 0 „ <br /> Bromoform - - - - - ----ND -2 p = „ ----„- ---- Y ----_ - - - - --- <br /> Bromomethane ND 5 Q <br /> n-Butylbenzene ND 2 0 „ <br /> sec-Butylbenzene y - ND 2 <br /> Tert-butylbenzene ND 2 0 <br /> Carbon tetrachlonde ND 2 0 <br /> Chlorobenzene - ND 2 0 „ - <br /> Chloroethane ND 5 0 ^ „ <br /> Chloroform ND 2 0 <br /> Chloromethane ND 5 0 <br /> 2-Chlorotoluene ND 2 0 „ <br /> 4-Chlorotoluene ND 2 0 <br /> Dibromochlorom ethane ND 2 0 <br /> 1,2-Dibromoethane ND 2 0 „ <br /> --Dibromomethane - - - - - ND - - - -2 0- - -- -- - -- - - - - - - -- <br /> Sequoia Analytical - San Carlos Tile i esults in this r epos t apply to the samples analyzed in accordance with the churn of� <br /> Custody document This analytical report must be reproduced in its entirety <br /> Page 59 of 91 ' <br />