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1551 Industnmi Kmd <br /> Sequoia San Carlos CA 94070 <br /> a— ) (650)232-%00 <br /> Analytical FAX(630)232-9612 <br /> www-seyuoialebs com <br /> Gettler-Ryan/Geostrategies(1) Project Tosco(1) <br /> 671 erre Court,Suite J Project Number Former Unocal SS#4409,Stockton,CA Reported <br /> DMWCA,94568 Project Manager Deanna Harding 10/26/01 09 39 <br /> Volatile Organic 8 Oxygenated Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepamd Analyzed Method Notes <br /> MW-1 L110077-02 Water Sampled 10110/01 11-13 Received: 10/12/0107 35 <br /> Ethanol ND 1000 ug/l 1 1100051 10/15/01 10/15/01 EPA 8260E <br /> 1,2-Dibromoethane ND 20 " « <br /> 1,2-Dlchloroethane ND 20 " « <br /> Di-isopropyl ether ND 20 ^ " <br /> Ethyl Cert-butyl ether ND 20 <br /> Methyl tert-butyl ether ND 20 <br /> Tert-amyl methyl ether ND 20 <br /> Tort-butyl alcohol ND 100 <br /> Surrogate 1,2-Diehloroethane-d4 101% 76-114 " <br /> Surrogate Toluene-d8 107% 88-110 ^ <br /> MW-2(L110077-03)Water Sampled_ 10/10/0110 35 Received:.10112101 07 35 <br /> Ethanol ND 1000 ug/1 1 1100063 10/15/01 10/15/01 EPA 8260B <br /> 1,2-Dibromoethane ND 20 <br /> 1,2-Dlchloroethane ND 20 <br /> Di-isopropyl ether ND 20 <br /> Eth butyl ether ND 20 ^ » <br /> M rt-butyl ether ND 20 " « <br /> Tert-amyl methyl ether ND 20 <br /> Tert-butyl alcohol ND 100 <br /> Surrogate 1,2-Dichloroethane-d4 104% 76-114 <br /> Surrogate Toluene-d8 104% 88-110 <br /> MW-3(L1)0077-04)Water Sampled- 10/10/0112-30 Received 10112/0107 35 _ <br /> Ethanol ND 1000 ugll 1 1100051 10/15/01 10/15/01 EPA 8260B —� <br /> 1,2-Dibromoethane ND 20 <br /> 1,2-Dichloroethane ND 20 <br /> Dt-isopropyl ether ND 20 " ^ <br /> Ethyl tort-butyl ether ND 20 " ^ <br /> Methyl ter(-butyl ether 12 20 <br /> Tort-amyl methyl ether ND 20 <br /> Teri-butyl alcohol ND 100 <br /> Su►rogate 1,2-Dichloroethane-d4 105% 76-114 ~ " <br /> Surrogate Toluene-d8 103% 88-110 <br /> I <br /> Seq Analytical-San Carlos The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its emirety <br /> Page 6 of 16 <br />