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Sequoia $19 Straker Ave Ste$ <br /> Sacramento,CA 9581q <br /> a— ) 7 (916)921-9600 <br /> Analytical FAX(916)921 0100 <br /> www sequoialabs Com <br /> Gettler-Ryan-Dublin Project Unocal 5098,Stockton,CA - S210010 <br /> 6747 Sierra Court,Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 10/14/02 1 S 46 <br /> ' Volatile Organic Compounds by EFA Method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte - Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-10(S210010-11)Water Sampled 09/24/02 16 14 Received 09/26/02 18 35 <br /> Surrogate 4-BFB 109% 70-130 2100088 10/05102 10106102 EPA 8260B <br /> MW-10(S21 0010-1 1RE1)Water Sampled 09/24/02 16 14 Received 09/26/02_18 35 _ <br /> Trichloroethene ND 0 50 ugll 1 2100111 10/08/02 10/08/02 EPA 8260B ' <br /> Surrogate Dibromofluoroniethane 108% 70-130 + <br /> Surrogate 12-DCA-d4 119% 70-130 " <br /> Sui rogate Toluene-d8 106% 70-130 " <br /> Surrogate 4-BFB 108% 70-130 ' <br /> MW-10A (S210010-12)Water Sampled 09/24/02 15 47 Received 09126/_02 18 35 <br /> Benzene 078 050 ug/l 1 2100088 10/05/02 10/06/02 EPA 8260B <br /> Bromobenzene ND 050 <br /> Bromochloromethane ND 0 50 <br /> Bromodichloromethane - ND 050 " <br /> Bromoform ND 0 50 <br /> Bromomethane ND 10 <br /> n-Butylbenzene ND 050 <br /> sec-Butylbenzene ND 0 50 " <br /> tent-Butylbenzene ND 0 50 <br /> Carbon tetrachloride ND 0 50 <br /> Chlorobenzene ND 050 " ++ <br /> _Chloroethane ND 0 50 — <br /> �Chlorofortn ND 0 50 - <br /> - Chloromethane _ND <br /> 2-Chlorotoluene — ---- T ND 0 50 <br /> _ --4-Chlorotoluene -- - _ — -_ -- --^-ND_--— 0 50 - <br /> Dibromochloromethane ND 050 <br /> 1 2-Dibromoethane(EDB) ND 0 50 <br /> Dibromomethane ND 0 50 " <br /> 1,2-Dibromo-3-chloropropane ND 10 " <br /> 1,2-Dichlorobenzene ND 0 50 <br /> --1,3-Dichlorobenzene _ ND __ -050 <br /> 1,4-Dichlorobenzene ND 050 " + <br /> Dichlorodifluoromethane = - ND 0 50 <br /> IJ-Dichloroethane ND 0 50 <br /> 1,2-Dichloroethane 058 0 50 <br /> 1,1-Dichloroethene ND 050 <br /> cls-1,2-Dichloroethene ND 0 50 " +, <br /> trans-1,2-Dichloroethene -_ ND 0 50 " <br /> 1,2-Dichloropropane - — - - - - ND` - "0 50 <br /> 1,3-Dichlor6propane ND 0 50 1 <br /> Sequoia Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must he reproduced in its entirety <br /> Page 47 of 119 <br />