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Y <br /> Gettier-Ryan/Geostrategtes(1) Project Tosco(1) <br /> 6747 Sterna Covet,Suite J - - - Project Number•=Tosca#5886,Stockton,CA _ —____ °05/25/01 16 59 <br /> - <br /> Dublin CA,94568 Project Manager• Deanna Harding <br /> Volatile Organic 8 Oxygenated Compounds by EPA Method 8260B <br /> Sequoia Analytical- San Carlos <br /> Rep-tulg <br /> - Result <br /> - - — 1�arrt- Units= =-Dihrhon_ Batch Prepared Analysed _ _Method_ - Notes <br /> MW-5S(L105074-08)Water Sampled:05/08/0109 30 Received 0510810116:35 <br /> Ethanol ND 1000 ug/l 1 1050043 05/11/01 05/11/01 EPA 8260B <br /> 1,2-DibromND 200 <br /> oethane „ <br /> ND 200 <br /> 1,2-Dtchloroethane <br /> Eh-isopropyl ether ND 2 00 ^ ^ ^ <br /> Ethyl tent-butyl ether ND 200 <br /> " <br /> Methyl tent-butyl ether ND 200 <br /> Tat-arnyl methyl ether ND 200 <br /> 00 <br /> Tent-butyl alcohol ND 1 <br /> Surrogate 1,2-Dtchloroethane-d4 934% 76-114 " <br /> Surrogate Toluene-d8 101 % 88-110 <br /> MW-6D(L105074-09)Water Sampled 05/08/011230 Received 0510810116 35 <br /> Ethanol ND 1000 ugn 1 1050043 05/11/01 05/12/01 EPA 8260B • <br /> 1,2-Dibromoethane ND 200 ^ „ <br /> 1,2-Dtchloroethane ND 2 00 " ^ <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND 2 00 ^ ^ <br /> Methyl ter(-butyl ether 199 200 <br /> Tert-amyl methyl ether ND 200 <br /> Tert-butyl alcohol ND 100 <br /> Surrogate 1,2-Dtchloroethane-d4 912 % 76-114 " <br /> Surrogate Toluene-0 988% 88-110 " <br /> MW-6S(L105074-10)Water Sampled 0510810112.00 Received 05/0810116 35 <br /> t 1050043 05/11/01 05/12/01 EPA 8260E <br /> Ethanol ND 1000 u9/1 <br /> 1,2Dibromoethane ND 200 <br /> 1,2-Dtchloroethane ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tent-butyl ether 27 7 9 20 <br /> 200 <br /> Methyl tert-butyl ether 9 <br /> Tert-amyl methyl ether ND 2 0 00 <br /> Tert-butyl alcohol ND 100 <br /> Surrogate 1,2 Dtchloroethane-d4 84 6% 76-114 <br /> Surrogate Toluene-d8 101 % 88-110 " <br /> Sequoia Analytical-San Carlos The results in this report apply to the samples analjrsed in accordance with the chain <br /> custody document. 77us analytical report must be reproduced an its entirety <br /> Page l l of 28 <br />