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a_ _� Sequoia an 'J.isal Road <br /> San Carlos CA 94070 , <br /> Analytical FAX{650)232.9600 <br /> (650)232 96]2 <br /> WWW sequoialabs com ' <br /> Gettl er-Ryan/Geostrategi es(I) Project Unoca](4) <br /> 6747 Sierra Court, Suite 1 Project Number Fortner Unocal#5098& Montgmery Ward Reported <br /> Dublin CA, 94568 Project Manager Deanna Harding 03/26/02 12 44 (' <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260B <br /> Sequoia Analytical- San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-9(L203015-10)Water Sampled 03/05/02 09 05 Received 03/05/02 18 25 _ <br /> Tert-butyl alcohol ND 20 ug/l 1 2030017 03/08/02 03/08/02 EPA 8260B <br /> Methyl tert-butyl ether `ND _ 10 <br /> Di-isopropyl ether ND 1 0 <br /> ! Ethyl tert-butyl ether ND 1 0 " ^ <br /> Tert-amyl methyl ether ND 1 0 <br /> Surrogate 1,2-Dichloroethane-d4 )04% 70-130 <br /> MW-10(L203015-11)Water Sampled 0_3/04102 10 30 Received 03/05/02 18 25 <br /> Tert-butyl alcohol ND 20 ug/l .1 2030017 03/08/02 03/08/02 EPA 8260E <br /> Methyl tert-butyl ether ND 1 0 " ^ 1 • „ 1 <br /> Di-isopropyl ether ND 10 " " " „ „ <br /> Ethyl tert-butyl ether ND 1 0 <br /> Tert-amyl methyl ether ND 10 <br /> Surrogate 1,2-Dichloroethane-d4 104% 70-130 ^ <br /> MW-10A L203015-12 Water Sampled 03/04/02 11 00 Received 03/05/02 18 25 <br /> Tert-butyl alcohol ND 20 ug/l 1 2030017 03/08/02 03/08/02 EPA 8260B <br /> Methyl tert-butyl ether ND 1 0 <br /> Iii-isopropyl ether ND 10 " <br /> Ethyl tert-butyl ether ND 10 <br /> Tert-amyl methyl ether ND 1 0 <br /> �Surtogate J,2_Dichloroethane-d4 97-7%- 70-130 " =' - _- <br /> i <br /> MW-ll (L203015-13)Water Sampled 03/04/02 14 10 Received 03/05/02 18 25 t <br /> TErt-butyl alcohol TT ND 20T ug/l -- 1 203003I 03/14/02 03/14/02 EPA 8260E <br /> Methyl tert-butyl ether -_ --- —�r_ND --- =1 0 <br /> Di-isopropyl ether ND 10 <br /> Ethyl tent-butyl ether ND 10 " ^ <br /> Tert-amyl methyl ether_ ND 1 0 <br /> Surrogate 1 2-Dichloroethane-d4 103% 70-130 <br /> _ t <br /> Sequoia Analytical - San Carlos The i esults in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 71 of 91 <br />