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$19 Sinker Ave Ste <br /> Sequoia Sacramento,CA 95834 , <br /> (916)921 9600 <br /> Analytical 4D FAX ' <br /> (41 b)921-D S 00 <br /> WWW secquosaka6s tom <br /> Gettler-Ryan-Dublin Project Unocal 5098,Stockton, CA 521E1846 <br /> 6747 Sierra Court, Ste J Project Number N/A Repo <br /> Dublin CA, 94568 Project Manager Deanna L Harding 10/14/0 <br /> Volatile Organic Compounds b EPA Method 8260B <br /> P Y <br /> Sequoia Analytical - Sacramento <br /> Reponmg <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> _MW-16(5210010-19)Water Sampled 09/23/02 12 35 Received 0_9_126102 I8 35 _ <br /> Surrogate Dibromofluoromethane lOd% 70-130 2100085 10/05/01 10/05/01 EPA 8260E <br /> Surrogate 1,2-DCA-d4 116% - 70-130 - <br /> Suri ogate Toluene-d8 110% 70-130 " <br /> Surrogate 4-BFB 107% 70-130 <br /> MW-17 S210010-20 Water Sampled 09/22/02 17 23 Received 09/26/02 18 35 <br /> I-ethyl-2-methylbenzene 68 50 ug/l 1 2100066 10/03/02 10/04/02 EPA 8260B <br /> Indane 74 50 <br /> Br6mobenzene ND 050 <br /> Bromochloromethane ND 050 <br /> Bromodichloromethane ND 050 <br /> Bromoform ND 050 <br /> Bromomethane ND 10 " <br /> n-Butylbenzene ND 050 <br /> sec-Butylbenzene ND 050 " <br /> tert-Butylbenzene ND _ _ 050 <br /> Carbon tetrachloride ND 050 " ^ <br /> Chlorobenzene ND 050 <br /> Chloroethane ND 050 <br /> Chloroform ND 050 " <br /> Chloromethane ND 050 <br />____2_Chlorotoluene _— —ND— —0 50-1 <br /> 4-Chlorotoluene ND 050 <br />-- Dibromochloromethane - _ -- -ND - - 0 50-__ - <br />_ 1,2-Dibromoethane(EDB) ND 050 <br /> DibromomethaneT -- - ND--- - 050 - <br /> 1,2-Dibromo-3-chloropropane ND 14 <br /> 1,2-Dichlorobenzene ND 050 <br />- 1,3-Dichlorobenzene _ - ND —-..- 050. <br /> 1,4-Dichlorobenzene ND 050 <br /> Dichlorodifluoromethane ND 050 <br /> 1,1-Dichloroethane ND 0 50-_ - <br /> 1,2-Dichloroethane ND 0 50 - <br /> 1,1-Dichloroethene ND 0 50 " <br /> cis-1,2-Dichloroethene ND 050 " ^ <br /> trans-1,2-Dichloroethene ND 050 " ^ <br /> 1,2-Dichloropropane ND 050 <br /> 1,3-Dichloropropane ND 0 50 <br /> 2,2-Dichloropropane ND 0 50 " ^ <br /> Y 1,]-Dichlo-ropropene -- -- + - --ND 050 <br /> Sequoia Anal Sacramento The results to this i e , <br /> q Analytical -$ po t apply to the samples analyzed to actor dance with the chain of� <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in us entirety <br /> Page 61 of 1 l9 <br />