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1p 404 N Wiget Lane <br /> Sequoia `"ten` Creek.CA 988-9600 6 <br /> 4 FAX(925)988-%'73 <br /> ate„ Analytical "�"'" "°'� corn <br /> Wer Ryan,Inc -Dublin Project. Unocal <br /> 6747 Sierra 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 Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-7(W101183-08)Water Sampled 08-Ian-01 16 48 Received 09-Jan-01 18 15 <br /> Ethanol ND 5000 ugA 10 IA16024 18-Jan-01 18-Jan-01 EPA 8260B <br /> tert-Butyl alcohol ND 500 <br /> Methyl tert-butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert butyl ether ND 20 ^ n n n n <br /> tort-Amyl methyl ether ND 20 <br /> 1,2-Dichlomethane ND 20 <br /> Ethylene dibromide ND 20 <br /> Surrogate Dibromofluoromethane 113 % 50-150 " <br /> Surrogate 1,2Dchloroethane-d4 656% 50-150 S-04 <br /> MW-8(W101183-09)Water Sampled 08-.tan-01 13 18 Received 09-Jan-01 18:15 <br /> Ethanol ND 500 ug/1 1 1A16024 18-Jan-01 18-Tan-01 EPA 8260B <br /> tent-Butyl alcohol ND s0 ^ ^ n ^ n <br /> Methyl seri butyl ether ND 20 <br /> Propyl ether ND 20 n n n <br /> tert-butyl ether ND 20 ^ n n n n n <br /> tert-Amyl methyl ether ND 20 <br /> 1,2-Dichloroethane ND 20 <br /> Ethylene dibromide ND 20 " <br /> Surrogate Dibromofluoromethane 111 % 50-150 " <br /> Surrogate 1,2-Drchloroethane-d4 910% 50-150 " <br /> MW-9(W 101183-10)Water Sampled 08-Tan-01 14 40 Received 09-Tan-01 18 15 <br /> Ethanol ND 5000 ug/1 10 1A16024 18-Jan-01 19-Jan-01 EPA 8260B <br /> tert Butyl alcohol ND 500 " <br /> Methyl tent butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl text butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 '. <br /> 1,2-Dtchloroethane ND 20 <br /> Ethylene dibromrde ND 20 <br /> Surrogate Dibromofluoromedsmie 105% 50-1150 " <br /> Surrogate 1,2 Dichloroethane-d4 940% 50-150 <br /> Sequoia Analytical-Walnut Creek The resdlts in dus report apply to the samples analyzed rn accor+dmce with the chmn of <br /> . custody document This mralydaal report Hurst be reproduced in its enarwy <br /> Page 8 of 14 <br />