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•J i y <br /> Sequoia re 04 N wiA lane <br /> Walnut Creek CA 94598 <br /> 4 (925)988-9600 <br /> a„) Analytical FA (925}988-9673 <br /> „ www sequoiaia65 <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> r <br /> -6747 Sierra Court-Suite-J Project Number-Chevron#9-6171 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 12-Jun-01 07 52 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MVV-12(W 105572-05)Water Sampled 25-May-Ol 11 11 Received 25-May-01 17 25 <br /> Ethanol ND 500 ug/1 1 1E30011 30-May-01 30-May-01 EPA 8260B <br /> tert-Butyl alcohol ND 20 ^ <br /> Methyl tert-butyl ether 70 20 ^ <br /> Dl-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tertAmyl methyl ether ND 20 " <br /> 1,2-Dichloroethane ND 20 <br /> Ethylene dibromide ND 20 <br /> Surrogate Dibromofluoromethane 106% 50-150 " <br /> Surrogate 1,2Dichloroethane-d4 116% 50-150 " " <br /> MW-13(W 105572-06)Water Sampled 25-May-01 10 40 Received 25-May-01 17 25 <br /> Ethanol ND 500 ug/1 1 1E30011 30-May-01 30-May-01 EPA 8260D <br /> tert-Butyl alcohol ND 20 <br /> Methyl tert-butyl ether ND 20 .� <br /> Di-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> 1,2-Dichloroethane _ ND 20 <br /> Ethylene dlbronude ND 20 <br /> Surrogate DYbromofluoromethane -- -108% 50-150 - - - <br /> Surrogate 12-Dichloroethane-d4 116% 50-150 " <br /> MW-14(W105572-07)Water Sampled 25-May-01 10 10 Received 25-May-01 17 25 <br /> Ethanol ND 500 ugA 1 1E30011 30-May-01 30-May-01 EPA 8260B <br /> tert-Butyl alcohol ND 20 <br /> Methyl tert-butyl ether ND 20 ^ <br /> DI-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether ND 20 <br /> -tert-Amyl methyl ether ND - 20 " " - <br /> 1,2-Dichloroethane ND 20 " <br /> Ethylene dibroinide ND 20 <br /> ,. <br /> Surrogate DYbromofluoromerhane 104% 50-150 <br /> Surrogate-1,2 Dichloroethane-d4 - - _ - 116% 50-150--w - - <br /> Sequoia Analytical- Walnut Creek The results in this report apply to the samples analyred to accordance with the ch <br /> custody document This analytical report must be reproduced in its enh <br /> Page 6 of 13 <br /> .tax. <br />