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4D (65Sequoia 155! Ltu ]Roo <br /> San rlo. C4 <br /> Ca <br /> s Cq 9407 <br /> Analytical <br /> 0)232-961 <br /> FAX(650)232_9{i172 <br /> www sequo,alabs cam <br /> Gettler-Ryan/Geostrategies(I) Project Unocal(4) <br /> 6747 Sierra Court, Suite 3 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-251 L203015-34 Water Sampled 03/04/02 12 15 Received 03/05/02 18 25 <br /> Styrene ND 330 ug/1 16667 2030023 03/14/02 03/14/02 EPA 8260B <br /> 1,1,1,2-Tetrachloroethane ND 330 <br /> 1,1,2,2-Tetrachloroethane ND 330 ' <br /> Tetrachloroethene ND 330 <br /> Toluene 6000 330 " <br /> 1,2,3-Tnchlorobenzene ND 330 <br /> 1,2,4-Tnchlorobenzene ND 330 <br /> 1,1,1-Tnchloroethane ND 330 <br /> 1,1,2-Trichloroethane ND 330 „ <br /> Trichloroethene ND 330 " <br /> Tnchlorofluoromethane ND 830 <br /> 1,2,3-Trichloropropane ND 330 <br /> 1,2,4-Trim ethyl benzene 1400 330 <br /> 1,3,5-Trimethylbenzene 360 330 " <br /> Vinyl chloride ND 330 <br /> Total Xylenes 7400 _ 330 <br /> Surrogate 12-Dichloroethane-d4 10201a 63-118 " all <br /> Surrogate Toluene-d8 101 % 88-110 " <br /> Surrogate 4-BFB 107% 86-115 <br /> MW-AS26 L203015-35 Water Sampled 03/04/02 13 00 Received 03/05/02 18 25 R-05 a <br /> Benzene ND 100=ug/! 50-2030023=03/14/02=03/15/02=EPA 8260B— --- <br /> Bromobenzene ND 100 <br /> Bromochloromethane -—ND-1- 00 <br /> Bromodichloromethane ND 100 " <br /> Bromofortn- -]00 <br /> Bromometbane ND 250 <br /> n-Butylbenzene ND 100 <br /> sec-Butylbenzene y - u 6 ND_ 100 <br /> Tert-butylbenzene ND 100 <br /> Carbon tetrachloride ND 100 <br /> Chlorobenzene _ _ ND 100 <br /> Chloroethane ND 250 <br /> Chloroform ND 100 <br /> Chloromethane ND 250 <br /> 2-Chlorotoluene ND 100 <br /> 4-Chlorotoluene ND 100 <br /> Dibromochloromethane_ ND 100 <br /> 1,2-Dibromocthane ND 100 „ <br /> Dibromomethane— ---- — - - - ND - 100 <br /> Sequoia Analytical - San <br /> Carlos The i esutts in this i eport apply to the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> _ 1 <br /> Page 65 of 91 ' <br />