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Sequoia404" %MZet Lme <br /> Walnut <br /> Geek,CA 94598°mqW - <br /> Analytical -(925)988-9600 <br /> FAX(925)988-9673 <br /> Gettjer Ryan,Inc -Dubhn Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#5886 Reported <br /> �Dubhn CA,94568 -- -- _ - -- - r Project Manager Deanna L Harding.-- __--- __ ---_ _ -17-Mar-00 09 54= <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical -Walnut Creek <br /> Analyte Result Lmut Umts Dilution Batch Prepamd Analyzed Method Notes <br /> MW-91(W003053-1')Water Sampled 29-Feb-000956 Received 01-Mar-00 18 15 <br /> Ethanol ND 500 ug11 1 OC10011 10-Mar-00 10-Mar-00 EPA S260A <br /> ted-Butyl alcohol ND 100 H " <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 /> Surrogate Dibromofluoromed mre 108% 50-150 <br /> Surrogate 1,2 Dtchloroethane-d4 112% 50-150 " <br /> MW-91)(WO03053-18)Water Sampled 29-Feb-0010 41 Received 01-Mar-0018 15 <br /> Ethanol ND 500 ugli 1 OC10011 10-Mu-00 10-Mar-00 EPA 9260A <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 /> tert-Amyl methyl ether ND 20 <br /> Surrogate Dibromofluoromed mte 106% 50-150 <br /> Surrogate 1,2Dtchloroethane-l4 116% 50-150 " <br /> MW-10S(W003053-19)Water Sampled 29-Feb-0013 46 Received 01-Mar-0018 15 <br /> Ethanol ND 500 ugn 1 OC10011 10-Mar-00 11-Mar-00 EPA 8260A <br /> tert-Butyl alcohol ND 100 <br /> Methyl tert-butyl ether ND 20 <br /> Dmsopropyl ether ND 20 <br /> Ethyl tert butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> Surrogate Dtbromofluoromedme 106% 50-15a " <br /> Surrogate 1,1-D:chloroethane-d4 112% 50-150 <br /> S eQAOIa Analytical-Walnut Creek The results to dus report apply to the samples analyzed m accordance with the chain of <br /> custody docwmA Thts anal5wal report must be reproduced m tts entirety <br /> 0 <br /> Page 19 of 27 <br />