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404 N Wlget Lane <br /> S4 Cquoia Walnut Creek,C ' 8 <br /> (925)98&8--%70 <br /> PAX(925)98896%73 <br /> Analytical www�'`��'� <br /> qwr <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> b747 Siena Court 5wte j Project Number Unocal# 1205 Reported <br /> 6747 S CA,9 Court Project Manager Deanna L Harding 08-Feb-01 07 55 <br /> DublVolatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> MW4(W101183-05)Water Sampled 08-Jan-0109 35 Received 09-0an-01 18 15 <br /> Ethanol ND 500 ug/1 1 1A16024 18-Jan-01 18-Jan-01 EPA 8260B <br /> tert-Butyl alcohol ND 50 " <br /> Methyl tert-butyl ether ND 2 0 <br /> Di-isopropyl ether ND 2 0 <br /> Ethyl tat-butyl ether ND 20 <br /> tent-Amyl methyl ether ND 2 0 <br /> 1,2-Dichloroethane ND 20 <br /> Ethylene dibronude ND 2 0 <br /> Surrogate Dibromofluoromethane 110% 50-150 " <br /> Surrogate 1,2-Dtehloroethane-d4 <br /> 402% 50-150 " " S-04 <br /> MW-5(W1011834)6)Water Sampled 08,Ian-01 15 50 Received 09-0an-01 18 15 <br /> Ethanol ND 2500 ug(l 5 1A16024 18-Jan-01 18-Jan-01 EPA 8260B <br /> tert-Butyl alcohol ND 250 <br /> Methyl tert butyl ether 27 10 „ <br /> Di-isopropyl ether ND 10 " <br /> Ethyl tart-butyl ether ND 10 <br /> tent-Amyl methyl ether ND 10 <br /> " <br /> 1,2-Dichloroethane ND 10 <br /> Ethylene drbronude ND 10 <br /> IF " <br /> .surrogate Dibromofluoromefhane 113% 50-150 " <br /> Surrogate 1,2-Dtchloroeihane�4 <br /> 496% <br /> 50-I50 IF S-04 <br /> MW-6(W101183-07)Water Saiupled 08-Jan-01 12 10 Received 094an-01 18 15 <br /> Ethanol ND 5000 ug/1 10 IA16024 18-Jan-01 18-Jan-0I EPA 8260B <br /> tert-Butyl alcohol ND 500 rt <br /> Methyl tert butyl ether 750 20 <br /> Dt-isopropyl ether ND 20 " n <br /> Ethyl tert-butyl-ether ND 20 w <br /> tert-Amyl methyl ether ND 20 <br /> " <br /> 1,2-Dicliloroethane ND 20 „ <br /> Ethylene dibromide ND 20 <br /> Surrogate Dibroinofluoromethane 112% 50-150 n " <br /> Surrogate 1,2-Dichloroethane-d4 986% 50-150 " <br /> Sequoia Analytical-Walnut Creek The results in Ills report apply to the samples analysed in accordance with the chain of <br /> custody document Tins analytical report must be reproduced in its enu6 <br /> -- -- <br /> Page-7-of-14— <br />