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Sequoia 404 N Wiget Lane <br /> Walnut Creek, CA 94598 <br /> Analytical FAX (925) 9W96960073 <br /> s <br /> Gettler Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco#6981 Reported <br /> Dublin CA,94568 -- _ = Project Manager Deanna L--Harding — - — _ - - 10-Feb-0O 11 00 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Lumt Units Dilution Batch Prepared Analyzed Method Notes <br /> VW-7(W001654-17)Water Sampled 28-Ian-0016 15 Received 28-Jen-00 1S 20 <br /> tert-Butyl alcohol ND 100 ug/l I 01302018 01-Feb-00 01-Feb-00 EPA 8260A <br /> Methyl tert-butyl ether 75 20 ^ <br /> Di-isopropyl ether ND 20 •' " „ <br /> Ethyl tert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> 1,2-Dichloroetliane ND 20 <br /> Ethylene dibromide 23 20 ^ ++ ^ <br /> Surrogate DibronroJluoromethane 960% 50-150 " <br /> Surrogate 1,2 Dichloroethare-d4 0440% 50-150 S-04 <br /> PTW-1 (W001654-18)Water Sampled 28-Tan-00 10 15 Received 28-Ian-00 18 20 <br /> tert-Butyl alcohol ND 100 ug/l 1 OB02018 01-Feb-00 02-Feb-00 EPA 8260A <br /> Methyl tert-butyl ether ND 20 ^ ^ ^ <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 200 <br /> ter[-Ainyl inethyI ether ND 20 " <br /> Sinvogate Dibroruofluoromethane 940% 50-150 ^ <br /> Surrogate 1 2-Dtchloroethaie-0 102% 50-150 " <br /> Sequoia Analytical -Walnut Creek 77re results in the report apply to die samples analysed in accordance with Ace duan ojcus <br /> document Ths analytraal repot must be rrFrodriced in res enti <br /> Alms B�KenipLaboratory Director Page 13 of 20 <br />