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' 11 <br /> y <br /> Sequoia 404 N WiLane <br /> -,- - _ - - - - _- _- - -� - - - -_`_ - _ - - - _ -Walnut Creek CA 99598 <br /> - (925) 988 8-9600 <br /> r <br /> Analytical <br /> nalt.t cal FAX(925)988-9673 <br /> Gettler Ryan,Inc -Dubhn Project Unocal <br /> 6747 Sierra Court Suite 7 Project Number Unocal# 5886 Reported <br /> Dublm CA,94568,T v_ -� Project Manager Deanna L Harding 16-Dec-99 09 01 <br /> Volatile 41 gonia Compounds by EPA Method 8260A <br /> Sequoia Analytical -Walnut Creek <br /> Reporting - <br /> Anaiyte Result Lrmxt Uruts Dilution Batch Prepared Analyzed Method Notes <br /> -MW-5S(W912007-08)Water-Sampled-30-Nov-99 09 48 =Received 30-Nov-99-19 05�— <br /> Ethanol ND 500 ug/l 1 9L14011 09-Dee-99 09-Dec-99 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether 19 20 " <br /> Di-Isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 " <br /> tent-Amyl methyl ether ND 20 <br /> Surrogate Dibromof2uoromethane 128% 50-150 " " <br /> Surrogate 1,2 Dichloroethane-d4 126% 50-150 " <br /> MW-6D(W912007-09)Water Sampled 30-Nov-99 1120 Received 30-Nov-99 19 05 <br /> Ethanol ND 500 ugh 1 9L14011 09-Dec-99 09-Dec-99 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether 69 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> Surrogate Dibromof2uoromethane 126% 50-150 <br /> Surrogate 1 2-Dichloroethane-d4 124% 50-150 " <br /> MW-6S(W912007-10)Water Sampled 30-Nov-99 1143 Received 30-Nov-99 19 05 <br /> Ethanol ND 500 ugll 1 9L14011 09-Dee-99 09-Dec-99 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether 47 20 " <br /> DI-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 " <br /> tert-Amyl methyl ether ND 20 <br /> Surrogate Dibromofuoromethane 124,% 50-150 " <br /> Surrogate 1,2-Dichloroethane-l4 124% 50-150 " <br /> Sequoia Analytical-Walnut Creels The results in this report apply to the samples analyzed i n mcordance with the chain of. <br /> custody document This analytical report must be reproduced in+ts er6;rely <br /> �-uha[iue eg eV, o3ect anagen Page 16 of 27 <br />