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,} t„ y <br /> �a <br /> r9 <br /> Gettler-Ryan/Geostrategies(1) Project Tosco(1) <br /> 6747 Sierra Court,Suite J Project Number Unocal Circle K SS##1205,Lathrop,CA Reported <br /> Dublin CA,94568 Project Manager Deanna Larding 05/10/01 15 16 <br /> Volatile Organic 8 Oxygenated Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Notes <br /> Analyte Result limit Units Dilution Batch Prepared Analyzed Method <br /> MW-1(L104181-02)Water Sampled 04/26/01 13 35 Received 04/26/0117 35 <br /> Ethanol ND 25000 ug/1 25 1040099 04/27/01 04/27/01 EPA 8260B <br /> 1,2-Dibromoethane ND 500 " <br /> 1,2-Dichloroethane ND 500 <br /> Di-isopropyl ether ND Soo „ <br /> Ethyl tert-butyl ether ND 500 <br /> Methyl Cert-butyl ether 606 500 „ <br /> 0 0 ^ <br /> Tert-amyl methyl ether ND 5 „ „ ^ <br /> Tert-butyl alcohol ND 2500 <br /> Surrogate 1,2-Dichloroethane-d4 974 % 76-114 " <br /> Surrogate Toluene-d8 100 % 88-110 <br /> MW-2(L104181-03)Water Sampled 04/26/01 13 00 Received 04/26/0117 35 <br /> 5 1040099 04127!01 04/27/01 EPA 9260B <br /> 0of ND 5000 ug/1 <br /> ibrornoethane ND 100 <br /> t,2-Dichloroethane ND 100 <br /> 10 0 " <br /> Di-isopropyl ether ND ^ , ^ <br /> Ethyl tent-butyl ether ND 10 0 <br /> Metbyl tert-butyl ether 367 <br /> 10 0 <br /> Tert-amyl methyl ether ND 100 „ <br /> 500 " <br /> Tert-butyl alcohol ND „ <br /> Surrogate 1,2-Dichloroethane-d4 972% 76-114 <br /> Surrogate Toluene-d8 102% 88-110 " <br /> MW-3(L104181-04)Water Sampled 04/26/0112 25 Received 04/26/0117 35 <br /> 2 1040099 (}4127101 04/27/01 EPA 8260B <br /> Ethanol ND 2000 ug/1 <br /> 1,2-Dibromoethane ND 400 „ <br /> 4 00 <br /> 1,2-Dichloroethane ND ++ <br /> Di-isopropyl ether ND 400 <br /> Ethyl tert-butyl ether ND 400 <br /> Methyl tert-butyl ether ND 400 <br /> Tert-amyl methyl ether ND 400 <br /> Tert-butyl alcohol ND 200 ^ <br /> Surrogate 1,2-Dichloroethane-d4 972% 76-114 � <br /> Surrogate Toluene-d8 <br /> 104% 88-110 <br /> Sequoia 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 entirety <br /> Page 6of16 <br />