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404 N Wlget Lane <br /> v Sequoia Walnut Creek.CA 94548 <br /> (92-5)988-9600 <br /> FAX(925)488-9673 <br /> 1w Analytical <br /> er Ryan,Inc -Dublin Project Unocal <br /> 47 Sierra Court Suite J Project Number Unocal#5886 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 17-Mar-00 09 54 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-5S(W003053-08)Water Sampled 28-Feb-0012 41 Received 01-Mar-0018 15 <br /> Ethanol ND 500 ug/l 1 oclo011 10-Mar-00 10-Mar-00 EPA 8260A <br /> ted-Butyl alcohol ND 100 <br /> Methyltett-butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tent-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 " <br /> Surrogate Dtbromofluoromethan104% 50-150e <br /> Surrogate 1,2-Dtchloroerhane-d4 114% 50-150 <br /> MW-7D(W003053-09)Water Sampled 28-Feb-0010 36 Received 01-Mar-0018 15 <br /> Ethanol ND 500 ug/1 1 oclo011 10-Mar-00 10•Mar-00 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert butyl ether ND 20 <br /> Di-isopropyl ether ND 20 <br /> Ethyl tent-butyl ether ND 20 <br /> -Amyl methyl ether ND 204rro <br /> " <br /> gate DibromoJluoromethane 104% 50-150 <br /> Surrogate 1,2Dichloroethane-d4 108% 50-150 <br /> MW-7S(W003053-10)Water Sampled 28-Feb-0011 21 Received 01-Mar-0018 15 <br /> Ethanol ND 500 ug/l 1 oclooll 10-Mar-00 10-Mar-00 EPA8260A <br /> tert-Butyl alcohol ND 100 <br /> Methyl tert butyl ether ND 20 <br /> Di-isopropyl ether ND 20 " <br /> Ethyl tertbutyl ether ND 20 <br /> tort-Amyl methyl ether ND 20 " <br /> Surrogate Drbromofluoromedume 100% 50-150 " <br /> Surrogate 1,2-Dichloroedume-t.4 104% 50-150 " <br /> Sequoia Analytical-Walnut Creek The resuhs in flus►aporl WIY to the samples analyred to accordance with rhe chan of <br /> custody document.This anafAcal report must be reproduced in its enorety <br /> • <br /> Page 16 of 27 <br />