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404 N get Lane <br /> y Sequoia Walnut Creek rCA 9 598 <br /> (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 tl 8671 Reported <br /> Dublin CA,94568 Project Manager Deanna L Hdrding 18-Nov-99 09 20 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (W911053-02)Water Sampled 01-Nov-99 09 16 Received 01-Nov-99 13 40 <br /> tert-Butyl alcohol ND 100 ug/1 1 9K05025 04-Nov-99 04-Nov-99 EPA 8260A <br /> Methyl tert-butyl ether 190 20 11 1. " 11 " " <br /> Di-isopropyl ether ND 20 " <br /> Ethyl tent-butyl ether ND 20 " <br /> tert-Amyl methyl ether ND 20 <br /> Surrogate Dibrontof uoromethane 110% 50-150 <br /> Surrogate 1 2-Drchloroethane-d4 106% 50-150 <br /> MW-2(W9110534)3)Water Sampled 01-Nov-99 09 45 Reo-eived 01-Nov-99 13 40 <br /> h-rt-Butyl dlwhol ND 100 ugll 1 9KO5025 04-Nov-99 04-Nov-99 EPA 8260A <br /> Methyl tort-butyl tther 37 20 " <br /> Di-i,,oproll%I ether ND 20 " <br /> Lthvl tert-butvl ether ND 20 <br /> tort-Am%l metlivl ether ND 20 " <br /> 5rre DiGrornoflnoromethane 110% 50-150 <br /> tirI ate 1 2-Dichloroerhane-<14 106% 50-150 <br /> NlW-3 (W9110534)4)Water Sampled 01-Nati-99 10 15 RiteivLd 01-Nov-99 13 40 <br /> tt-a-Butyl alcohol ND 100 11c/1 1 91.05025 04-Nos-99 04-Nov-99 LPA 8260-\ <br /> Mtthvl tert-butvl ether a 1 2 0 " <br /> l)i-r,opropvl ether ND 20 " <br /> Lthvl tert-butyl ether ND 20 " <br /> ILil-Ainvl methyl Lthri ND 20 " <br /> Srrrrol ate Drhroninjite ronretharie 110% 50-150 _ —u <br /> Swrogale 1 2-Dich1oroethar -d4 108% 50-150 <br /> I <br /> Sm AnalytreJl - Walnut Creek The a sults in//a%mix-fri cgr1A,to the uanple s cautliced in accorckatce with the clean of <br /> cuuody docuureni This ancilvtical rcporf nru%f he reproduced in rn a rutren. <br /> ii do ie eg ty, Pro)e4t Wridger P.IgL 4 of 9 <br />