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404 N Wiget Lane <br /> Sequoia "'h`""` (975)988-9600 <br /> Cxeek CA 94598 <br /> FAX(925)986-9673 <br /> Analytical www sequoialab5`°m <br /> Glettter Ryan,Inc -Dublin Project, Unocal <br /> 6747 Slew Court Suite J Project Number Unocal# 1205 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 08-Feb-01 07 55 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-7(W101183-M)Water Sampled 08-Jan-01 16 48 Received 09-0an-01 18 15 <br /> Ethanol ND 5000 ugn 10 1A16024 1&Jan-01 18-Jan-01 EPA 8260B <br /> Cert-Butyl alcohol ND 500 <br /> Methyl tert butyl ether ND 20 <br /> Di-isopropyl ether ND 20 <br /> Ethyl Cert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> 1,2-Dtchloroethane ND 20 <br /> Ethylene dibromtde ND 20 " <br /> Surrogate Dibromofluoromethane 113 % 50-150 " <br /> Surrogate 1,2 Dichlorroedme-d4 656% 50-150 &04 <br /> MW-8(W101183-09)Water Sampled 08-Jan-0113 18 Received 09-Jan-01 18 15 <br /> Ethanol ND 500 ug/1 1 1A16024 18-Jan-01 18-Jan-01 EPA 8260B <br /> tert-Butyl alcohol ND 50 <br /> � <br /> l tert-butyl ether ND 20 <br /> propyl ether ND 20 " <br /> Ethyl tent butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> 1,2-Dichloroethane ND 20 <br /> Ethylene dlbrormde ND 20 " <br /> Surrogate Dibromofluoromethane 111 % 50-150 <br /> Surrogate 1,2-Dichloroethane-d4 910% 50-150 <br /> MW-9(W101183-10)Water Sampled 08-Jan-01 14 40 Received 09-Jan-01 18 15 <br /> Ethanol ND 5000 ug4 10 1A16024 18-Jan-01 19-Jan-01 EPA 9260B <br /> tert-Butyl alcohol ND 500 <br /> Methyl tert butyl ether ND 20 <br /> Df-isopropyl ether ND 20 <br /> Ethyl Cert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> 1,2-Dichloroethene ND 20 <br /> Ethylene dlbronude ND 20 " <br /> Surrogate Dibromofluoromethane 105% 50-150 " <br /> Surrogate 42-Dichloroethane-l4 94 0% 50-150 " <br /> S01a Analytical -Walnut Creek The results in dus report apply to the samples anal3aed in accordance with the ehmn of <br /> custody document. 77us analytical report must be reproduced in its entirety <br /> Page 8 of 14 <br />