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Sequoia 404 N wtLane <br /> Walnut Creek CAA 94598 <br /> - T <br /> - - _-- -1 —_{-1�+� =r -_- -- __-- - _ --- - -_ - — _—- _ -- - - - -k - (925)988-9600= <br /> Analytical FAX (925) 988-9673 <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal# 5886 Reported <br /> _Dublin CA,94568 Project Manager Deanna L Harding 16-Dec-99 09 01 <br /> Volatile Organic Compounds by EPA Method 8260A - �T <br /> Sequoia Analytical - Walnut Creep <br /> _ Reporting - <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> _ -MW_1-(W912007-02)Water-Sampled 30-Nov-99-12 16 Received 30-Nov-99 1905.. <br /> Ethanol ND 500 ug/1 1 9L14011 09-Dec-99 09-Deo-99 EPA 9260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether 45 20 " <br /> Di-isopropyl ether <br /> ND 20 <br /> Ethyl tert-butyl ether ND 20 " <br /> tert-Amyl methyl ether ND 20 <br /> Surrogate Drbromofluoromethane 122 % 50-150 " <br /> Surrogate 1,2-Dichloroethane-d4 112 % 50-150 " <br /> MW-2(W912007-03)Water Sampled 30-Nov-991248 Received 30-Nov-99 19 05 <br /> Ethanol ND 250000 119/1 500 9L14011 09-Dec-99 09-Deo-99 EPA 8260A <br /> tert-Butyl alcohol ND 50000 " <br /> Methyl tert-butyl ether 32000 1000 " <br /> Di-isopropyl ether ND 1000 " <br /> Ethyl tert-butyl ether ND 1000 <br /> tert-Amyl methyl ether ND 1000 tP t. " <br /> Surrogate Dibromofluoromethane 124% 50-150 <br /> Surrogate 1,2-Drchloroethane-d4 106% 50-150 " <br /> MW-3(W912007-04)Water Sampled 30-Nov-991320 Received 30-Nov-99 19 05 <br /> Ethanol ND 50000 ug/1 100 9L14011 09-Dec-99 09-Deo-99 EPA 8260A <br /> tert-Butyl alcohol ND 10000 " " <br /> Methyl tert-butyl ether 21000 400 200 10-Deo-99 <br /> Dr-isopropyl ether ND 200 100 " 09-Deo-99 <br /> Ethyl tert-butyl ether ND 200 <br /> tert-Amyl methyl ether ND <br /> 200 I, <br /> Surrogate Dibrotnofluoromethane 124 % 50-150 " <br /> Surrogate 1 2-Dichloroethane-l4 122% 50-150 " <br /> Sequoia Analytical-Walnut Creek The results in rips report epply to the samples analyzed i n accordance with the charn of. <br /> custody document This analytical report must be reproduced in i is ermi-ely <br /> kull anile e�ey, o}ect anagen <br /> Page 14 of 27 <br />